CECE / Ceco Environmental Corp. - Pemfailan SEC, Laporan Tahunan, Penyata Proksi

Ceco Environmental Corp.
US ˙ NASDAQ
SIMBOL INI TIDAK AKTIF LAGI

Statistik Asas
LEI 5493002CZCTL4HGLIY91
CIK 3197
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Ceco Environmental Corp.
SEC Filings (Chronological Order)
Halaman ini menyediakan senarai kronologi lengkap bagi Pemfailan SEC, tidak termasuk pemfailan pemilikan yang kami sediakan di tempat lain.
July 29, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 29, 2025 CECO ENVIRONMENTAL

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 29, 2025 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission F

July 29, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2025 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 0-07099 CECO ENVIRONMENT

July 29, 2025 EX-99.1

CECO ENVIRONMENTAL REPORTS SECOND QUARTER 2025 RESULTS Continued Strong Orders Growth Headlines Multiple Financial Records Raises Full Year Revenue Outlook

CECO ENVIRONMENTAL REPORTS SECOND QUARTER 2025 RESULTS Continued Strong Orders Growth Headlines Multiple Financial Records Raises Full Year Revenue Outlook ADDISON, TEXAS (July 29, 2025) - CECO Environmental Corp.

July 24, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 18, 2025 CECO ENVIRONMENTAL

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 18, 2025 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission F

July 24, 2025 EX-10.1

CONFIDENTIAL EXECUTIVE SEPARATION AGREEMENT AND RELEASE THE COMPANY AND EXECUTIVE ACKNOWLEDGE THAT (A) EACH HAS CAREFULLY READ THIS AGREEMENT, (B) EACH UNDERSTANDS ITS TERMS, (C) ALL UNDERSTANDINGS AND AGREEMENTS BETWEEN THE COMPANY AND EXECUTIVE REL

CONFIDENTIAL EXECUTIVE SEPARATION AGREEMENT AND RELEASE THIS CONFIDENTIAL EXECUTIVE SEPARATION AGREEMENT AND RELEASE (the “Agreement”) by and between CECO Environmental Corp.

June 6, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 4, 2025 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission Fi

June 6, 2025 EX-10.1

Equity award agreement between the Company and Todd R. Gleason, dated June 4, 2025.

Grantee: Todd R. Gleason Target Number of Restricted Stock Units “PRSUs”: 150,000 Date of Grant: June 4, 2025 Vesting Date: June 4, 2029 CECO ENVIRONMENTAL CORP. Performance-Based Restricted Stock Units Agreement This PERFORMANCE-BASED RESTRICTED STOCK UNITS AGREEMENT (this “Agreement”) is made as of the date set forth above (the “Date of Grant”) by and between CECO Environmental Corp., a Delaware

May 29, 2025 EX-1.01

Conflict Minerals Report of CECO Environmental Corp.

Exhibit 1.01 CECO Environmental Corp. Conflict Minerals Report For the reporting period from January 1, 2024 to December 31, 2024 This Conflict Minerals Report (this “Report”) of CECO Environmental Corp. (including its consolidated subsidiaries, the “Company “) has been prepared pursuant to Rule 13p-1 and Form SD promulgated under the Securities Exchange Act of 1934 for the reporting period from J

May 29, 2025 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report CECO ENVIRONMENTAL CORP. (Exact name of registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report CECO ENVIRONMENTAL CORP. (Exact name of registrant as specified in its charter) Delaware 000-07099 13-2566064 (State or other jurisdiction of incorporation or organization) (Commission File Number) (I.R.S. Employer Identification No.) 5080 Spectrum Drive Suite 800E Addison, Texas 75001 (Ad

May 22, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 20, 2025 CECO ENVIRONMENTAL C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 20, 2025 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission Fi

April 29, 2025 EX-99.1

CECO ENVIRONMENTAL REPORTS FIRST QUARTER 2025 RESULTS Numerous Financial Records Reflect Strength of Well-Positioned Portfolio Company Maintains Full Year Outlook

CECO ENVIRONMENTAL REPORTS FIRST QUARTER 2025 RESULTS Numerous Financial Records Reflect Strength of Well-Positioned Portfolio Company Maintains Full Year Outlook ADDISON, TEXAS (April 29, 2025) - CECO Environmental Corp.

April 29, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 29, 2025 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission

April 29, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2025 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 0-07099 CECO ENVIRONMEN

April 10, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive proxy statement ☒ Definitive additional materials ☐ Soliciting material pursuant to Sec.

April 10, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive proxy statement ☐ Definitive additional materials ☐ Soliciting material pursuant to Sec.

April 4, 2025 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 31, 2025 CECO ENVIRONMENTAL CORP (Exact name of Registrant as Specified in Its Charter) Delaware 000-7099 13-2566064 (State or Other Jurisdiction of Incorporation) (Commission F

April 4, 2025 EX-99.1

CECO ENVIRONMENTAL ANNOUNCES COMPLETION OF THE DIVESTITURE OF ITS FLUID HANDLING BUSINESS TO MAY RIVER CAPITAL

Press Release CECO ENVIRONMENTAL ANNOUNCES COMPLETION OF THE DIVESTITURE OF ITS FLUID HANDLING BUSINESS TO MAY RIVER CAPITAL ADDISON, TX (Apr.

April 4, 2025 EX-10.1

Membership Interest Purchase Agreement, dated as of March 31, 2025, by and among Tusk Industrial OpCo Acquisition LLC and Met-Pro Technologies LLC

Membership Interest Purchase AGREEMENT BY AND among Tusk Industrial OpCo Acquisition LLC, Tusk Industrial PROpCo Acquisition LLC, Tusk Industrial IP Acquisition LLC, CECO ENVIRONMENTAL CORP.

March 6, 2025 EX-16.1

Letter from BDO USA, P.C. dated March 3, 2025.

March 3, 2025 Securities and Exchange Commission 100 F Street N.E. Washington, D.C. 20549 We have been furnished with a copy of the response to Item 4.01 of Form 8-K for the event that occurred on February 28, 2025, to be filed by our former client, CECO Environmental Corp. We agree with the statements made in response to that Item insofar as they relate to our Firm. Very truly yours, /s/BDO USA,

March 6, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 28, 2025 CECO ENVIRONMEN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 28, 2025 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-07099 13-2566064 (State or other jurisdiction of incorporation) (Commiss

February 25, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 25, 2025 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commissi

February 25, 2025 EX-21.1

Subsidiaries of the Company

Exhibit 21.1 SUBSIDIARIES OF THE COMPANY Subsidiary State/County Aarding Thermal Acoustics B.V. Netherlands Aarding Thermal Acoustics USA Inc. United States Arkanum Management Limited United Kingdom CECO Emtrol Buell India Private Limited India CECO Environmental (Shanghai) Co., Ltd. China CECO Environmental Arabia Limited Saudi Arabia CECO Environmental Asia Pacific Pte. Ltd. Singapore CECO Envir

February 25, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark one) ☒ Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2024 ☐ Transition Report Pursua

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark one) ☒ Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2024 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 0-7099 CECO ENVIRONMENTAL CO

February 25, 2025 EX-99.1

CECO ENVIRONMENTAL REPORTS FOURTH QUARTER AND FULL YEAR 2024 RESULTS Record Bookings in the Quarter of $219M Elevated Year-End Backlog to a Record $541M Reaffirms 2025 Full Year Outlook

CECO ENVIRONMENTAL REPORTS FOURTH QUARTER AND FULL YEAR 2024 RESULTS Record Bookings in the Quarter of $219M Elevated Year-End Backlog to a Record $541M Reaffirms 2025 Full Year Outlook ADDISON, TX (February 25, 2025) - CECO Environmental Corp.

February 25, 2025 EX-19.1

CECO Environmental Corp. Insider Trading Policy

Exhibit 19.1 INSIDER TRADING POLICY Rev. July 2023 TABLE OF CONTENTS Section Page I. Purpose 3 II. Scope 3 III. Insider Trading Prohibitions 3 IV. Policy 4 A. Trading on Material Nonpublic Information 4 B. Hedging; Loans 4 C. Speculative Trades and Short Sales 4 D. Stock Option Plan Transactions 5 E. Transactions by Related Persons 5 F. Tipping 5 G. Rule 10b5-1 5 H. Short-Term Trading 6 I. Bona Fi

January 17, 2025 EX-99.1

CECO ENVIRONMENTAL ANNOUNCES PRELIMINARY FOURTH QUARTER AND FULL YEAR 2024 RESULTS AND HIGHLIGHTS KEY STRATEGIC TRANSACTIONS Q4 Revenue and EBITDA Negatively Impacted by Customer-Driven Project Delays Tremendous Q4 Bookings at Over $210 million Estab

CECO ENVIRONMENTAL ANNOUNCES PRELIMINARY FOURTH QUARTER AND FULL YEAR 2024 RESULTS AND HIGHLIGHTS KEY STRATEGIC TRANSACTIONS Q4 Revenue and EBITDA Negatively Impacted by Customer-Driven Project Delays Tremendous Q4 Bookings at Over $210 million Establishes New Record and Highest-Ever Backlog Completed Acquisition of Verantis in Late Q4 and Announces Intention to Divest Fluid Handling Business 2025 Full Year Outlook Affirmed ADDISON, TX (January 16, 2025) - CECO Environmental Corp.

January 17, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 16, 2025 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commissio

January 3, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 2, 2025 CECO ENVIRONMENTA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 2, 2025 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-07099 13-2566064 (State or other jurisdiction of incorporation) (Commissio

November 13, 2024 SC 13G

CECO / CECO Environmental Corp. / Capital International Investors - SEC SCHEDULE 13G Passive Investment

SC 13G 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* CECO Environmental Corp. (Name of Issuer) Common Stock (Title of Class of Securities) 125141101 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of this Statement) Check the appropriate box

October 31, 2024 SC 13G/A

CECO / CECO Environmental Corp. / DIMENSIONAL FUND ADVISORS LP - SEC SCHEDULE 13G Passive Investment

SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 7 )* CECO Environmental Corp (Name of Issuer) Common Stock (Title of Class of Securities) 125141101 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of this Statement) Check the appropriate b

October 29, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2024 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 0-07099 CECO ENVI

October 29, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 o FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 29, 2024 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commiss

October 29, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 28, 2024 CECO ENVIRONMENT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 28, 2024 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-07099 13-2566064 (State or other jurisdiction of incorporation) (Commissi

October 29, 2024 EX-10.1

Agreement and Plan of Merger, dated October 28, 2024 by and among CECO Environmental Corp., Combustion Merger Sub, Inc., and Profire Energy, Inc.

Exhibit 10.1 AGREEMENT AND PLAN OF MERGER by and among CECO Environmental Corp., COMBUSTION MERGER SUB, INC. and Profire Energy, Inc. dated as of October 28, 2024 TABLE OF CONTENTS ARTICLE I THE OFFER 7 Section 1.01 The Offer 7 Section 1.02 Company Actions 11 ARTICLE II THE MERGER 12 Section 2.01 The Merger 12 Section 2.02 Closing 12 Section 2.03 Effective Time 12 Section 2.04 Effects of the Merge

October 29, 2024 EX-99.1

CECO ENVIRONMENTAL REPORTS THIRD QUARTER 2024 RESULTS Company Produces Record Q3 Bookings and Highest-Ever Backlog Q3 Revenue and Income Impacted by Customer-Driven Project Delays Announced the Acquisition of Profire Energy (Nasdaq: PFIE) for $125 Mi

CECO ENVIRONMENTAL REPORTS THIRD QUARTER 2024 RESULTS Company Produces Record Q3 Bookings and Highest-Ever Backlog Q3 Revenue and Income Impacted by Customer-Driven Project Delays Announced the Acquisition of Profire Energy (Nasdaq: PFIE) for $125 Million Completed Acquisition of WK, in Early October Updates FY24 Guidance and Introduces 2025 Outlook DALLAS (October 29, 2024) - CECO Environmental Corp.

October 29, 2024 EX-99.1

CECO ENVIRONMENTAL TO ACQUIRE PROFIRE ENERGY FOR $125 MILLION Advances CECO’s Position as the Leading Environmental Solutions Provider in Industrial Markets

Exhibit 99.1 Press Release CECO ENVIRONMENTAL TO ACQUIRE PROFIRE ENERGY FOR $125 MILLION Advances CECO’s Position as the Leading Environmental Solutions Provider in Industrial Markets · Expands CECO’s leadership position in niche energy and industrial markets with expanded environmental solutions for mission critical applications · Provides cost synergies and enhances Profire’s strategic growth by

October 11, 2024 EX-10.1

Third Amended and Restated Credit Agreement, dated as of October 7, 2024, among the Company, its subsidiaries from time to time party thereto, the lenders from time to time party thereto and Bank of America, N.A., as Administrative Agent

Exhibit 10.1 Execution Version Published Deal CUSIP Number: 12514DAN5 Published Revolving Credit Facility CUSIP Number: 12514DAP0 THIRD AMENDED AND RESTATED CREDIT AGREEMENT Dated as of October 7, 2024 among CECO ENVIRONMENTAL CORP. and CERTAIN SUBSIDIARIES, as Borrowers, THE LENDERS PARTY HERETO, BANK OF AMERICA, N.A., as Administrative Agent, Swing Line Lender and an L/C Issuer, THE TORONTO-DOMI

October 11, 2024 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 7, 2024 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission

July 30, 2024 EX-99.1

CECO ENVIRONMENTAL REPORTS SECOND QUARTER 2024 RESULTS Record Revenue, Gross Profits, Gross Margins and EBITDA Closes Strategic Industrial Air Acquisition Raises Full Year Outlook

CECO ENVIRONMENTAL REPORTS SECOND QUARTER 2024 RESULTS Record Revenue, Gross Profits, Gross Margins and EBITDA Closes Strategic Industrial Air Acquisition Raises Full Year Outlook DALLAS (July 30, 2024) - CECO Environmental Corp.

July 30, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 30, 2024 CECO ENVIRONMENTAL

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 30, 2024 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission F

July 30, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2024 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 0-07099 CECO ENVIRONMENT

May 30, 2024 EX-1.01

Conflict Minerals Report of CECO Environmental Corp.

Exhibit 1.01 CECO Environmental Corp. Conflict Minerals Report For the reporting period from January 1, 2023 to December 31, 2023 This Conflict Minerals Report (this “Report”) of CECO Environmental Corp. (including its consolidated subsidiaries, the “Company “) has been prepared pursuant to Rule 13p-1 and Form SD promulgated under the Securities Exchange Act of 1934 for the reporting period from J

May 30, 2024 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report CECO ENVIRONMENTAL CORP. (Exact name of registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report CECO ENVIRONMENTAL CORP. (Exact name of registrant as specified in its charter) Delaware 000-07099 (State or other jurisdiction of incorporation or organization) (Commission File Number) 14651 North Dallas Parkway Dallas, Texas 75254 (Address of principal executive offices) (Zip Code) Kiri

May 22, 2024 EX-3.1

Certificate of Amendment to the Certificate of Incorporation of CECO Environmental Corp. (incorporated by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K filed with the SEC on May 22, 2024)

CERTIFICATE OF AMENDMENT TO THE CERTIFICATE OF INCORPORATION OF CECO ENVIRONMENTAL CORP.

May 22, 2024 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 20, 2024 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission Fi

April 30, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2024 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 0-07099 CECO ENVIRONMEN

April 30, 2024 EX-99.1

CECO ENVIRONMENTAL REPORTS FIRST QUARTER 2024 RESULTS Reports Record First Quarter Revenue and Gross Margins, Near Record Backlog Reaffirms Full Year 2024 Guidance

CECO ENVIRONMENTAL REPORTS FIRST QUARTER 2024 RESULTS Reports Record First Quarter Revenue and Gross Margins, Near Record Backlog Reaffirms Full Year 2024 Guidance DALLAS (April 30, 2024) - CECO Environmental Corp.

April 30, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 30, 2024 CECO ENVIRONMENTAL

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 30, 2024 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission

April 10, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents ag UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive proxy statement ☐ Definitive additional materials ☐ Soliciting material pursuant to Sec.

April 10, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive proxy statement ☒ Definitive additional materials ☐ Soliciting material pursuant to Sec.

March 22, 2024 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary proxy statement ☐ Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive proxy statement ☐ Definitive additional materials ☐ Soliciting material pursuant to Sec.

March 5, 2024 EX-10.34

Form of Nonqualified Stock Option Agreement for Employees under the CECO Environmental Corp. 2021 Equity and Incentive Compensation Plan

Optionee: %%FIRSTNAMELASTNAME%-% Number of Shares Subject to the Option: %%TOTALSHARESGRANTED,7%-% Option Price per Share: $ Date of Grant: %%OPTIONDATE,1%-% Vesting Schedule: %%SHARESPERIOD1%-% %%VESTDATEPERIOD1,'Month DD, YYYY'%-% %%SHARESPERIOD2%-% %%VESTDATEPERIOD2,'Month DD, YYYY'%-% %%SHARESPERIOD3%-% %%VESTDATEPERIOD3,'Month DD, YYYY'%-% CECO ENVIRONMENTAL CORP.

March 5, 2024 EX-10.33

Form of Performance-Based Restricted Stock Units Agreement for Employees under the CECO Environmental Corp. 2021 Equity and Incentive Compensation Plan, revised March 2024

Grantee: #ParticipantName# Number of Restricted Stock Units “PRSUs”: #QuantityGranted# Date of Grant: #GrantDate# Performance Period: January 1, 2024 to December 31, 2026 Vesting Date: December 31, 2026 CECO ENVIRONMENTAL CORP.

March 5, 2024 EX-10.32

Form of Restricted Stock Units Agreement for Employees under the CECO Environmental Corp. 2021 Equity and Incentive Compensation Plan, revised March 2024

Grantee: %%FIRSTNAMELASTNAME%-% Number of Restricted Stock Units “RSUs”: %%TOTALSHARESGRANTED,7%-% Date of Grant: %%OPTIONDATE,1%-% Vesting Schedule: %%SHARESPERIOD1%-% %%VESTDATEPERIOD1,'Month DD, YYYY'%-% %%SHARESPERIOD2%-% %%VESTDATEPERIOD2,'Month DD, YYYY'%-% %%SHARESPERIOD3%-% %%VESTDATEPERIOD3,'Month DD, YYYY'%-% CECO ENVIRONMENTAL CORP.

March 5, 2024 EX-97.1

CECO Environmental Corp. Compensation Recovery Policy

CECO Environmental Corp. Compensation Recovery Policy 1. Purpose. The purpose of this Compensation Recovery Policy (this “Policy”) is to describe the circumstances under which CECO Environmental Corp. (the “Company”) is required to recover certain compensation paid to certain employees. Any references in compensation plans, agreements, equity awards or other policies to the Company’s “recoupment,”

March 5, 2024 EX-99.1

CECO ENVIRONMENTAL REPORTS FOURTH QUARTER AND FULL YEAR 2023 RESULTS Reports Q4 and Full Year Earnings with Multiple Financial Records Company Raises Full Year 2024 Guidance

CECO ENVIRONMENTAL REPORTS FOURTH QUARTER AND FULL YEAR 2023 RESULTS Reports Q4 and Full Year Earnings with Multiple Financial Records Company Raises Full Year 2024 Guidance DALLAS (March 5, 2024) - CECO Environmental Corp.

March 5, 2024 EX-10.22

Amendment No. 4 to Second Amended and Restated Credit Agreement, dated as of October 30, 2023, among the Company and certain of its subsidiaries, the lenders party thereto and Bank of America, N.A

AMENDMENT NO. 4 TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT THIS AMENDMENT NO. 4 TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT (this “Amendment”) dated and effective as of October 30, 2023 (the “Amendment No. 4 Effective Date”), is among CECO ENVIRONMENTAL CORP., a Delaware corporation (the “Company”), BANK OF AMERICA, N.A., in its capacity as the administrative agent (in such capacity, the

March 5, 2024 EX-21.1

Subsidiaries of the Company

Exhibit 21.1 SUBSIDIARIES OF THE COMPANY Subsidiary State/County Aarding Thermal Acoustics B.V. Netherlands Aarding Thermal Acoustics USA Inc. United States Arkanum Management Limited United Kingdom CECO Emtrol Buell India Private Limited India CECO Environmental (Shanghai) Co., Ltd. China CECO Environmental Asia Pacific Pte. Ltd. Singapore CECO Environmental Corp. United States CECO Environmental

March 5, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 5, 2024 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission F

March 5, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark one) ☒ Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2023 ☐ Transition Report Pursua

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark one) ☒ Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2023 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 0-7099 CECO ENVIRONMENTAL CO

February 9, 2024 SC 13G/A

CECE / Ceco Environmental Corp. / DIMENSIONAL FUND ADVISORS LP - SEC SCHEDULE 13G Passive Investment

SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 6 )* CECO Environmental Corp (Name of Issuer) Common Stock (Title of Class of Securities) 125141101 (CUSIP Number) December 29, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate bo

November 7, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 7, 2023 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commissio

November 7, 2023 EX-10.2

Separation Agreement, dated as of September 1, 2023, by and between CECO Environmental Corp. and Paul Gohr

EXECUTIVE SEPARATION agreement AND RELEASE THIS EXECUTIVE SEPARATION AGREEMENT AND RELEASE (the “Agreement”) by and between CECO Environmental Corp.

November 7, 2023 EX-10.1

Separation Agreement, dated as of August 21, 2023, by and between CECO Environmental Corp. and Ramesh Nuggihalli

EXECUTIVE SEPARATION agreement AND RELEASE THIS EXECUTIVE SEPARATION AGREEMENT AND RELEASE (the “Agreement”) by and between CECO Environmental Corp.

November 7, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2023 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 0-07099 CECO ENVIRO

November 7, 2023 EX-99.1

CECO ENVIRONMENTAL REPORTS THIRD QUARTER 2023 RESULTS Record Revenue, Backlog, Gross Profit and Cash Flow Dollars Company Raises Full Year 2023 Outlook and Introduces 2024 Guidance

CECO ENVIRONMENTAL REPORTS THIRD QUARTER 2023 RESULTS Record Revenue, Backlog, Gross Profit and Cash Flow Dollars Company Raises Full Year 2023 Outlook and Introduces 2024 Guidance DALLAS (November 7, 2023) - CECO Environmental Corp.

October 5, 2023 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 29, 2023 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commiss

October 5, 2023 EX-10.1

Equity Award Agreement between the Company and Peter Johansson, dated September 29, 2023 (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed with the SEC on October 5, 2023)

Grantee: Peter K. Johansson Target Number of Restricted Stock Units “PRSUs”: 47,247 Date of Grant: September 29, 2023 Vesting Date: July 5, 2027 CECO ENVIRONMENTAL CORP. Performance-Based Restricted Stock Units Agreement This PERFORMANCE-BASED RESTRICTED STOCK UNITS AGREEMENT (this “Agreement”) is made as of the date set forth above (the “Date of Grant”) by and between CECO Environmental Corp., a

October 5, 2023 EX-10.2

Equity Award Agreement between the Company and Joycelynn Watkins-Asiyanbi, dated September 29, 2023 (incorporated by reference to Exhibit 10.2 to the Company’s Current Report on Form 8-K filed with the SEC on October 5, 2023)

Grantee: Joycelynn Watkins-Asiyanbi Target Number of Restricted Stock Units “PRSUs”: 41,341 Date of Grant: September 29, 2023 Vesting Date: July 5, 2027 CECO ENVIRONMENTAL CORP.

September 13, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 13, 2023 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commiss

September 13, 2023 EX-99.1

CECO Environmental Raises Full Year 2023 Outlook, Announces Acquisition of Kemco Systems, a Leader in Industrial Water Recycling and Energy Conservation Solutions

CECO Environmental Raises Full Year 2023 Outlook, Announces Acquisition of Kemco Systems, a Leader in Industrial Water Recycling and Energy Conservation Solutions DALLAS (Sept.

September 11, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 6, 2023 CECO ENVIRONMEN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 6, 2023 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commissi

September 11, 2023 EX-99.1

# # #

Press Release CECO Environmental Announces Appointment of Laurie A. Siegel to its Board of Directors DALLAS (September 11, 2023) - CECO Environmental Corp. (Nasdaq: CECO), a leading environmentally focused, diversified industrial company whose solutions protect people, the environment, and industrial equipment, today announced Laurie A. Siegel has joined its board of directors. In connection with

September 8, 2023 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 1, 2023 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commissi

August 25, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 21, 2023 CECO ENVIRONMENTA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 21, 2023 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission

August 8, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2023 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 0-07099 CECO ENVIRONMENT

August 8, 2023 EX-99.1

CECO ENVIRONMENTAL REPORTS SECOND QUARTER 2023 RESULTS Record Orders, Revenue, Backlog, Gross Profit and Adjusted EBITDA Company Raises Full Year 2023 Outlook

CECO ENVIRONMENTAL REPORTS SECOND QUARTER 2023 RESULTS Record Orders, Revenue, Backlog, Gross Profit and Adjusted EBITDA Company Raises Full Year 2023 Outlook DALLAS (August 8, 2023) - CECO Environmental Corp.

August 8, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 8, 2023 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission

July 14, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 14, 2023 CECO ENVIRONMENTAL

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 14, 2023 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission F

July 11, 2023 EX-10.3

CECO Environmental Corp. Executive Change in Control and Severance Plan, as amended and restated July 6, 2023 (incorporated by reference to Exhibit 10.3 to the Company’s Current Report on Form 8-K filed with the SEC on July 11, 2023)

Exhibit 10.3 CECO ENVIRONMENTAL CORP. executive CHANGE IN CONTROL severance plan 1. Scope. This CECO Environmental Corp. Executive Change in Control Severance Plan (this “Plan”) applies to such officers and/or key employees of CECO Environmental Corp. (the “Company”) as may be determined by the Compensation Committee (or its successor, the “Compensation Committee”) of the Board of Directors of the

July 11, 2023 EX-10.1

Letter agreement with Todd Gleason, dated July 5, 2023 (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed with the SEC on July 11, 2023)

Exhibit 10.1 CECO ENVIRONMENTAL CORP. 14651 North Dallas Parkway Dallas, TX 75254 VIA E-MAIL DELIVERY July 5, 2023 Mr. Todd R. Gleason 14651 North Dallas Parkway, Ste. 500 Dallas, TX 75254 Re: Letter Agreement Relating to Continuing Employment Dear Todd: This purpose of this letter is to provide you with written notification of our agreement that the Board of Directors of CECO Environmental Corp (

July 11, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 5, 2023 CECO ENVIRONMENTAL C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 5, 2023 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission Fi

July 11, 2023 EX-10.2

Equity award agreement between the Company and Mr. Gleason, dated July 5, 2023.

Exhibit 10.2 Grantee: Todd R. Gleason Target Number of Restricted Stock Units “PRSUs”: 225,000 Date of Grant: July 5, 2023 Vesting Date: 4th Anniversary of the Date of Grant CECO ENVIRONMENTAL CORP. Performance-Based Restricted Stock Units Agreement This PERFORMANCE-BASED RESTRICTED STOCK UNITS AGREEMENT (this “Agreement”) is made as of the date set forth above (the “Date of Grant”) by and between

July 5, 2023 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 29, 2023 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission F

June 7, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 5, 2023 CECO ENVIRONMENTAL C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 5, 2023 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission Fi

May 24, 2023 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report CECO ENVIRONMENTAL CORP. (Exact name of registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report CECO ENVIRONMENTAL CORP. (Exact name of registrant as specified in its charter) Delaware 000-07099 13-2566064 (State or other jurisdiction of incorporation or organization) (Commission File Number) (I.R.S. Employer Identification No.) 14651 North Dallas Parkway Dallas, Texas 75254 (Address

May 24, 2023 EX-1.01

Conflict Minerals Report of CECO Environmental Corp.

Exhibit 1.01 CECO Environmental Corp. Conflict Minerals Report For the reporting period from January 1, 2022 to December 31, 2022 This Conflict Minerals Report (this “Report”) of CECO Environmental Corp. (including its consolidated subsidiaries, the “Company “) has been prepared pursuant to Rule 13p-1 and Form SD promulgated under the Securities Exchange Act of 1934 for the reporting period from J

May 9, 2023 EX-10

Amendment No. 3 to Second Amended and Restated Credit Agreement, dated as of June 11, 2019, among the Company and certain of its subsidiaries, the lenders party thereto and Bank of America, N.A.

AMENDMENT NO. 3 TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT THIS AMENDMENT NO. 3 TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT dated and effective as of March 20, 2023 (this “Amendment”), is among CECO ENVIRONMENTAL CORP., a Delaware corporation (the “Company”), BANK OF AMERICA, N.A., in its capacity as the administrative agent (in such capacity, the “Administrative Agent”), each of the Subs

May 9, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 9, 2023 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission Fil

May 9, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2023 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 0-07099 CECO ENVIRONMEN

May 9, 2023 EX-99

CECO ENVIRONMENTAL REPORTS FIRST QUARTER 2023 RESULTS Strong Orders Establish Record Backlog, Supports Sustained Revenue Growth Company Raises Full Year 2023 Outlook

CECO ENVIRONMENTAL REPORTS FIRST QUARTER 2023 RESULTS Strong Orders Establish Record Backlog, Supports Sustained Revenue Growth Company Raises Full Year 2023 Outlook DALLAS (May 9, 2023) - CECO Environmental Corp.

April 24, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive proxy statement ☐ Definitive additional materials ☐ Soliciting material pursuant to Sec.

April 24, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive proxy statement ☒ Definitive additional materials ☐ Soliciting material pursuant to Sec.

March 9, 2023 EX-10

CECO Environmental Corp. Executive Change in Control and Severance Plan, as amended and restated March 3, 2023.

CECO ENVIRONMENTAL CORP. executive CHANGE IN CONTROL severance plan 1. Scope. This CECO Environmental Corp. Executive Change in Control Severance Plan (this “Plan”) applies to such officers and/or key employees of CECO Environmental Corp. (the “Company”) as may be determined by the Compensation Committee (or its successor, the “Compensation Committee”) of the Board of Directors of the Company (the

March 9, 2023 EX-3

Amended and Restated By-laws, as amended and restated March 3, 2023.

AMENDED AND RESTATED BY-LAWS OF CECO ENVIRONMENTAL CORP. ARTICLE I OFFICES CECO Environmental Corp., a Delaware corporation (the “Corporation”), shall continuously maintain in the State of Delaware a registered office and a registered agent whose office is identical with such registered office, and may have other offices within or without the state. The registered office of the Corporation require

March 9, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 03, 2023 CECO ENVIRONMENTAL CORP (Exact name of Registrant as Specified in Its Charter) Delaware 000-7099 13-2566064 (State or Other Jurisdiction of Incorporation) (Commission F

March 6, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 6, 2023 CECO ENVIRONMENTAL

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 6, 2023 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission F

March 6, 2023 EX-10

Form of Restricted Stock Units Agreement for Directors under the CECO Environmental Corp. 2021 Equity and Incentive Compensation Plan (incorporated by reference to Exhibit 10.27 to the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022)

EX-10.27 Grantee: %%FIRSTNAMELASTNAME%% Number of Restricted Stock Units “RSUs”: %%TOTALSHARESGRANTED,7%% Agreement Date: %%OPTIONDATE,1%% Date of Grant: %%VESTBASEDATE,1% Vesting Date: This will vary but for US directors as follows: on the first anniversary of the Date of Grant CECO ENVIRONMENTAL CORP. Restricted Stock Units Agreement This RESTRICTED STOCK UNITS AGREEMENT (this “Agreement”) is ma

March 6, 2023 EX-99

CECO ENVIRONMENTAL REPORTS FOURTH QUARTER AND FULL YEAR 2022 RESULTS Strong Fourth Quarter Results Capstone High Growth, Transformational Full Year 2022 Company Raises Full Year 2023 Outlook Off Record Backlog Levels

CECO ENVIRONMENTAL REPORTS FOURTH QUARTER AND FULL YEAR 2022 RESULTS Strong Fourth Quarter Results Capstone High Growth, Transformational Full Year 2022 Company Raises Full Year 2023 Outlook Off Record Backlog Levels DALLAS (March 6, 2023) - CECO Environmental Corp.

March 6, 2023 EX-21

Subsidiaries of the Company

Exhibit 21 SUBSIDIARIES OF THE COMPANY Subsidiary State/County Aarding Thermal Acoustics B.

March 6, 2023 EX-10

Amendment No. 2 to Second Amended and Restated Credit Agreement, dated as of December 17, 2021, among the Company and certain of its subsidiaries, the lenders party thereto and Bank of America, N.A.

EX-10.25 EXECUTION VERSION AMENDMENT NO. 2 TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT THIS AMENDMENT NO. 2 TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT dated and effective as of December 17, 2021 (this “Amendment”), is among CECO ENVIRONMENTAL CORP., a Delaware corporation (the “Company”), BANK OF AMERICA, N.A., in its capacity as the administrative agent (in such capacity, the “Administra

March 6, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark one) ☒ Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2022 ☐ Transition Report Pursua

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark one) ☒ Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2022 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 0-7099 CECO ENVIRONMENTAL CO

March 6, 2023 EX-10

Form of Restricted Stock Units Agreement for Employees under the CECO Environmental Corp. 2021 Equity and Incentive Compensation Plan (incorporated by reference to Exhibit 10.26 to the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022)

EX-10.26 Grantee: %%FIRSTNAMELASTNAME%% Number of Restricted Stock Units “RSUs”: %%TOTALSHARESGRANTED,7%% Agreement Date: %%OPTIONDATE,1%% Date of Grant: %%VESTBASEDATE,1% Vesting Schedule: The RSUs shall become nonforfeitable and payable in substantially equal installments on each of the first four anniversaries of the Date of Grant, with each such anniversary constituting a vesting date CECO ENV

February 10, 2023 EX-99.1

February 10, 2023

CUSIP No. 125141101 Schedule 13G Page 1 of 1 Exhibit 1 EXHIBIT 1 TO SCHEDULE 13G February 10, 2023 In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, TRIGRAN INVESTMENTS, INC., DOUGLAS GRANAT, LAWRENCE A. OBERMAN, STEVEN G. SIMON, BRADLEY F. SIMON and STEVEN R. MONIESON each hereby agree to the joint filing of this statement on Schedule 13G (including any an

February 10, 2023 SC 13G/A

CECE / CECO Environmental Corp. / DIMENSIONAL FUND ADVISORS LP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5 )* CECO Environmental Corp (Name of Issuer) Common Stock (Title of Class of Securities) 125141101 (CUSIP Number) December 30, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which thi

February 10, 2023 SC 13G/A

CECE / CECO Environmental Corp. / Trigran Investments, Inc. - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) Information Statement Pursuant to Rules 13d-1 Under the Securities Exchange Act of 1934 (Amendment No. 8)* CECO ENVIRONMENTAL CORP. (Name of Issuer) Common Stock, Par Value of $0.01 Per Share (Title of Class of Securities) 125141101 (CUSIP Number) January 23, 2023 Date of Event Which Requires Filing

February 8, 2023 SC 13G/A

CECE / CECO Environmental Corp. / AMERICAN CENTURY INVESTMENT MANAGEMENT INC - SC 13G/A Passive Investment

SC 13G/A 1 cecoenvironmental13g-a2.htm SC 13G/A United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* CECO ENVIRONMENTAL CORP. (Name of Issuer) COMMON STOCK (Title of Class of Securities) 125141101 (CUSIP Number) DECEMBER 31, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate

January 26, 2023 EX-1

January 25, 2023

EX-1 2 tm234428d2ex99-1.htm EXHIBIT 1 CUSIP No. 125141101 Schedule 13G Page 1 of 1 Exhibit 1 EXHIBIT 1 TO SCHEDULE 13G January 25, 2023 In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, TRIGRAN INVESTMENTS, INC., DOUGLAS GRANAT, LAWRENCE A. OBERMAN, STEVEN G. SIMON, BRADLEY F. SIMON and STEVEN R. MONIESON each hereby agree to the joint filing of this statem

January 26, 2023 SC 13G/A

CECE / CECO Environmental Corp. / Trigran Investments, Inc. - SC 13G/A Passive Investment

SC 13G/A 1 tm234428d2sc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) Information Statement Pursuant to Rules 13d-1 Under the Securities Exchange Act of 1934 (Amendment No. 7)* CECO ENVIRONMENTAL CORP. (Name of Issuer) Common Stock, Par Value of $0.01 Per Share (Title of Class of Securities) 125141101 (CUSIP Number) December 31

January 10, 2023 EX-99.1

CECO ENVIRONMENTAL ANNOUNCES PRELIMINARY FOURTH QUARTER 2022 ORDERS OF AT LEAST $145 MILLION Increase of 60 Percent Compared to Prior Year Period and up 42 Percent Sequentially

CECO ENVIRONMENTAL ANNOUNCES PRELIMINARY FOURTH QUARTER 2022 ORDERS OF AT LEAST $145 MILLION Increase of 60 Percent Compared to Prior Year Period and up 42 Percent Sequentially DALLAS (Jan.

January 10, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 10, 2023 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commissio

January 6, 2023 SC 13D/A

CECE / CECO Environmental Corp. / KING LUTHER CAPITAL MANAGEMENT CORP - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 6)* CECO Environmental Corp. (Name of Issuer) Common Stock, $0.01 par value (Title of Class of Securities) 125141101 (CUSIP Number) Jacob D. Smith Principal and General Counsel Luther King Capital Management Corporation 301 Commerce Street, Suite 1600 Fort W

November 7, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 7, 2022 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commissio

November 7, 2022 EX-99.1

CECO ENVIRONMENTAL REPORTS THIRD QUARTER 2022 RESULTS Strong Orders, Revenue and Income Growth; Updates to 2022 Outlook and Introduces 2023 Outlook

CECO ENVIRONMENTAL REPORTS THIRD QUARTER 2022 RESULTS Strong Orders, Revenue and Income Growth; Updates to 2022 Outlook and Introduces 2023 Outlook DALLAS (Nov.

November 7, 2022 EX-10.1

Separation Agreement, dated as of September 30, 2022, by and between CECO Environmental Corp. and Matthew Eckl

Exhibit 10.1 EXECUTIVE SEPARATION AGREEMENT AND RELEASE THIS EXECUTIVE SEPARATION AGREEMENT AND RELEASE (the ?Agreement?) is by and between CECO Environmental Corp. (the ?Company?) and Matthew Eckl (the ?Executive?) as of the Effective Date (as defined below). WHEREAS, the Company has decided to terminate the Executive?s employment as the Company?s Chief Financial Officer, and the Company and the

November 7, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2022 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 0-07099 CECO ENVIRO

October 6, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 30, 2022 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commiss

August 17, 2022 SC 13D/A

CECE / CECO Environmental Corp. / KING LUTHER CAPITAL MANAGEMENT CORP - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 5)* CECO Environmental Corp. (Name of Issuer) Common Stock, $0.01 par value (Title of Class of Securities) 125141101 (CUSIP Number) Jacob D. Smith Principal and General Counsel Luther King Capital Management Corporation 301 Commerce Street, Suite 1600 Fort W

August 11, 2022 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 11, 2022 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission

August 8, 2022 EX-99.1

CECO ENVIRONMENTAL REPORTS SECOND QUARTER 2022 RESULTS Record Backlog, Strong Revenue and Net Income Growth, and Update to Full Year Outlook

EX-99.1 2 cece-ex991.htm EX-99.1 CECO ENVIRONMENTAL REPORTS SECOND QUARTER 2022 RESULTS Record Backlog, Strong Revenue and Net Income Growth, and Update to Full Year Outlook DALLAS (Aug. 8, 2022) - CECO Environmental Corp. (Nasdaq: CECE) ("CECO"), a leading environmentally focused, diversified industrial company whose solutions protect people, the environment, and industrial equipment, today repor

August 8, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2022 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 0-07099 CECO ENVIRONMENT

August 8, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 8, 2022 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission

July 11, 2022 EX-99

CECO Environmental Appoints Robert E. Knowling, Jr. to its Board of Directors

CECO Environmental Appoints Robert E. Knowling, Jr. to its Board of Directors DALLAS (July 11, 2022) - CECO Environmental Corp. (Nasdaq: CECE), a leading environmentally focused, diversified industrial company whose solutions protect people, the environment, and industrial equipment, today announced Robert E. Knowling, Jr. has joined its board of directors. In addition, the company announced board

July 11, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 11, 2022 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission F

June 10, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 8, 2022 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission Fi

May 24, 2022 EX-1.01

CECO Environmental Corp. Conflict Minerals Report For the reporting period from January 1, 2021 to December 31, 2021

EX-1.01 2 cece-ex101.htm EX-1.01 Exhibit 1.01 CECO Environmental Corp. Conflict Minerals Report For the reporting period from January 1, 2021 to December 31, 2021 This Conflict Minerals Report (this “Report”) of CECO Environmental Corp. (including its consolidated subsidiaries, the “Company “) has been prepared pursuant to Rule 13p-1 and Form SD promulgated under the Securities Exchange Act of 193

May 24, 2022 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report CECO ENVIRONMENTAL CORP. (Exact name of registrant as specified in its charter)

SD 1 ceco-2022-formsd.htm SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report CECO ENVIRONMENTAL CORP. (Exact name of registrant as specified in its charter) Delaware 000-07099 13-2566064 (State or other jurisdiction of incorporation or organization) (Commission File Number) (I.R.S. Employer Identification No.) 14651 North Dallas Parkway

May 10, 2022 EX-99.1

CECO Environmental Reports First Quarter 2022 Results Record Orders, New Share Repurchase Authorization, and Acquisition of Compass Water

Exhibit 99.1 CECO Environmental Reports First Quarter 2022 Results Record Orders, New Share Repurchase Authorization, and Acquisition of Compass Water DALLAS (May 10, 2022) - CECO Environmental Corp. (Nasdaq: CECE) ("CECO"), a leading environmentally focused, diversified industrial company whose solutions protect people, the environment, and industrial equipment, today reported its financial resul

May 10, 2022 EX-99.2

CECO Environmental Announces $20 Million Share Repurchase Program

EX-99.2 3 cece-ex992.htm EX-99.2 Exhibit 99.2 CECO Environmental Announces $20 Million Share Repurchase Program DALLAS (May 10, 2022) - CECO Environmental Corp. (Nasdaq: CECE) (“CECO” or the “Company”), a leading environmentally focused, diversified industrial company whose solutions protect people, the environment, and industrial equipment, today announced that its Board of Directors (the “Board”

May 10, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ? Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2022 or ? Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 0-07099 CECO ENVIRONMEN

May 10, 2022 EX-99.3

CECO Environmental Acquires Compass Water Solutions Broadens Industrial Water Capabilities and Expands CECO’s Short-Cycle Mix

EX-99.3 4 cece-ex993.htm EX-99.3 Exhibit 99.3 CECO Environmental Acquires Compass Water Solutions Broadens Industrial Water Capabilities and Expands CECO’s Short-Cycle Mix DALLAS, TX (May 10, 2022) - CECO Environmental Corp. (Nasdaq: CECE) (“CECO”), a leading environmentally focused, diversified industrial company whose solutions protect people, the environment, and industrial equipment, today ann

May 10, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 10, 2022 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission Fi

May 10, 2022 CORRESP

CECO Environmental Corp. 14651 North Dallas Parkway, Suite 500 Dallas, Texas 75254 May 10, 2022

CORRESP 1 filename1.htm CECO Environmental Corp. 14651 North Dallas Parkway, Suite 500 Dallas, Texas 75254 May 10, 2022 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, NE Washington, D.C. 20549 Attn: Matthew Crispino Jan Woo Re: CECO Environmental Corp. Registration Statement on Form S-3 (File No. 333-264623) Ladies and Gentlemen: On behalf

May 2, 2022 S-3

As filed with the Securities and Exchange Commission on May 2, 2022

Table of Contents As filed with the Securities and Exchange Commission on May 2, 2022 Registration No.

May 2, 2022 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables S-3 (Form Type) CECO Environmental Corp.

April 29, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (Rule 14a-101) Proxy Statement Pursuant To Section 14(a) Of The Securities Exchange Act Of 1934

DEFA14A 1 d779550ddefa14a.htm DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (Rule 14a-101) Proxy Statement Pursuant To Section 14(a) Of The Securities Exchange Act Of 1934 Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for use of the Commission only (as perm

April 29, 2022 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive proxy statement ☐ Definitive additional materials ☐ Soliciting material pursuant to Sec.

March 14, 2022 EX-21

Subsidiaries of the Company

Exhibit 21 SUBSIDIARIES OF THE COMPANY Subsidiary State/County Aarding Thermal Acoustics B.

March 14, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark one) ☒ Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2021 ☐ Transition Report Pursua

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark one) ☒ Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2021 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 0-7099 CECO ENVIRONMENTAL CO

March 14, 2022 EX-10.24

AMENDMENT NO. 2 TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT

EX-10.24 5 cece-ex1024.htm EX-10.24 EXECUTION VERSION AMENDMENT NO. 2 TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT THIS AMENDMENT NO. 2 TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT dated and effective as of December 17, 2021 (this “Amendment”), is among CECO ENVIRONMENTAL CORP., a Delaware corporation (the “Company”), BANK OF AMERICA, N.A., in its capacity as the administrative agent (in suc

March 14, 2022 EX-99.1

CECO Environmental Reports Fourth Quarter and Full Year 2021 Results; Delivered Continued Quarterly Bookings Growth and Sequential Increases in Revenue and Margins

Exhibit 99.1 CECO Environmental Reports Fourth Quarter and Full Year 2021 Results; Delivered Continued Quarterly Bookings Growth and Sequential Increases in Revenue and Margins DALLAS (March 14, 2022) - CECO Environmental Corp. (Nasdaq: CECE), a leading environmentally focused, diversified industrial company whose solutions protect people, the environment, and industrial equipment, today reported

March 14, 2022 EX-10.20

Form of Restricted Stock Units Agreement for Employees under the CECO Environmental Corp. 2021 Equity and Incentive Compensation Plan (incorporated by reference to Exhibit 10.20 to the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2021)

CECO ENVIRONMENTAL CORP. Restricted Stock Units Agreement This RESTRICTED STOCK UNITS AGREEMENT (this ?Agreement?) is made as of , 2021, by and between CECO Environmental Corp., a Delaware corporation (the ?Company?), and (the ?Grantee?). 1. Certain Definitions. Capitalized terms used, but not otherwise defined, in this Agreement will have the meanings given to such terms in the CECO Environmental

March 14, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 14, 2022 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission

March 14, 2022 EX-10.23

Amendment No. 1 to Second Amended and Restated Credit Agreement, dated as of June 11, 2019, among the Company and certain of its subsidiaries, the lenders party thereto and Bank of America, N.A.

AMENDMENT NO. 1 TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT THIS AMENDMENT NO. 1 TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT dated and effective as of October 30, 2020 (this ?Amendment?), is among CECO ENVIRONMENTAL CORP., a Delaware corporation (the ?Company?), BANK OF AMERICA, N.A., in its capacity as the administrative agent (in such capacity, the ?Administrative Agent?), each of the Su

March 14, 2022 EX-10.19

Form of Restricted Stock Units Agreement for Directors under the CECO Environmental Corp. 2021 Equity and Incentive Compensation Plan (incorporated by reference to Exhibit 10.19 to the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2021)

CECO ENVIRONMENTAL CORP. Restricted Stock Units Agreement This RESTRICTED STOCK UNITS AGREEMENT (this ?Agreement?) is made as of , 20, by and between CECO Environmental Corp., a Delaware corporation (the ?Company?), and (the ?Grantee?). 1. Certain Definitions. Capitalized terms used, but not otherwise defined, in this Agreement will have the meanings given to such terms in the CECO Environmental C

March 8, 2022 EX-99.1

CECO Environmental Completes Acquisition of GRC Adds Industrial Flow Control Leader and Nearly Doubles Addressable Market Size

Exhibit 99.1 CECO Environmental Completes Acquisition of GRC Adds Industrial Flow Control Leader and Nearly Doubles Addressable Market Size DALLAS (March 8, 2022) - CECO Environmental Corp. (Nasdaq: CECE) (?CECO?), a leading environmentally focused, diversified industrial company whose solutions protect people, the environment, and industrial equipment, today announced it has completed the acquisi

March 8, 2022 EX-99.1

CECO Environmental to Acquire Industrial Flow Control Leader GRC Expands Infrastructure Expansion Joint Addressable Market by $300 million

CECO Environmental to Acquire Industrial Flow Control Leader GRC Expands Infrastructure Expansion Joint Addressable Market by $300 million DALLAS (Jan.

March 8, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 8, 2022 CECO Environmental Corp. (Exact Name of registrant as specified in its charter) Delaware 000-07099 13-2566064 (State or Other Jurisdiction of Incorporation) (Commission

March 8, 2022 8-K/A

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 10, 2022 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorp

February 10, 2022 EX-1

February 10, 2022

CUSIP No. 125141101 Schedule 13G Page 1 of 1 Exhibit 1 EXHIBIT 1 TO SCHEDULE 13G February 10, 2022 In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, TRIGRAN INVESTMENTS, INC., DOUGLAS GRANAT, LAWRENCE A. OBERMAN, STEVEN G. SIMON, BRADLEY F. SIMON and STEVEN R. MONIESON each hereby agree to the joint filing of this statement on Schedule 13G (including any an

February 10, 2022 SC 13G/A

CECE / CECO Environmental Corp. / Trigran Investments, Inc. - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) Information Statement Pursuant to Rules 13d-1 Under the Securities Exchange Act of 1934 (Amendment No. 6)* CECO ENVIRONMENTAL CORP. (Name of Issuer) Common Stock, Par Value of $0.01 Per Share (Title of Class of Securities) 125141101 (CUSIP Number) December 31, 2021 Date of Event Which Requires Filin

February 10, 2022 SC 13G/A

CECE / CECO Environmental Corp. / TRIGRAN INVESTMENTS LP - SCHEDULE 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) Information Statement Pursuant to Rules 13d-1 Under the Securities Exchange Act of 1934 (Amendment No. 3)* CECO ENVIRONMENTAL CORP. (Name of Issuer) Common Stock, Par Value of $0.01 Per Share (Title of Class of Securities) 125141101 (CUSIP Number) December 31, 2021 Date of Event Which Requires Filin

February 8, 2022 SC 13G/A

CECE / CECO Environmental Corp. / DIMENSIONAL FUND ADVISORS LP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4 )* CECO Environmental Corp (Name of Issuer) Common Stock (Title of Class of Securities) 125141101 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which thi

February 4, 2022 SC 13G/A

CECE / CECO Environmental Corp. / AMERICAN CENTURY INVESTMENT MANAGEMENT INC - SC 13G/A Passive Investment

United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* CECO ENVIRONMENTAL CORP. (Name of Issuer) COMMON STOCK (Title of Class of Securities) 125141101 (CUSIP Number) DECEMBER 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which thi

January 10, 2022 EX-99.1

CECO Environmental to Acquire Industrial Flow Control Leader GRC Expands Infrastructure Expansion Joint Addressable Market by $300 million

Exhibit 99.1 CECO Environmental to Acquire Industrial Flow Control Leader GRC Expands Infrastructure Expansion Joint Addressable Market by $300 million DALLAS (Jan. 10, 2022) - CECO Environmental Corp. (Nasdaq: CECE) (?CECO?), a leading environmentally focused, diversified industrial company whose solutions protect people, the environment, and industrial equipment, today announced it has agreed to

January 10, 2022 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 10, 2022 CECO Environmental Corp. (Exact Name of registrant as specified in its charter) Delaware 000-07099 13-2566064 (State or Other Jurisdiction of Incorporation) (Commissi

December 20, 2021 8-K

Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 17, 2021 CECO Environmental Corp. (Exact Name of registrant as specified in its charter) Delaware 000-07099 13-2566064 (State or Other Jurisdiction of Incorporation) (Commiss

November 8, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 8, 2021 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commissio

November 8, 2021 EX-10.1

CECO Environmental Corp. Executive Change in Control Severance Plan (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q filed with the SEC on November 8, 2021)

EX-10.1 2 cece-ex101.htm EX-10.1 Exhibit 10.1 CECO ENVIRONMENTAL CORP. executive CHANGE IN CONTROL severance plan 1. Scope. This CECO Environmental Corp. Executive Change in Control Severance Plan (this “Plan”) applies to such officers and/or key employees of CECO Environmental Corp. (the “Company”) as may be determined by the Compensation Committee (or its successor, the “Compensation Committee”)

November 8, 2021 EX-99.1

CECO Environmental Announces Appointment of Richard F. Wallman to its Board of Directors

Exhibit 99.1 CECO Environmental Announces Appointment of Richard F. Wallman to its Board of Directors DALLAS (Nov. 8, 2021) ? CECO Environmental Corp. (Nasdaq: CECE), a leading global air quality and fluid handling company serving the energy, industrial and other niche markets, today announced Richard F. Wallman, former Chief Financial Officer of Honeywell, has joined the company?s board of direct

November 8, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 4, 2021 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commissio

November 8, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2021 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 0-07099 CECO ENVIRO

November 8, 2021 EX-99.1

CECO Environmental Reports Third Quarter and Year-to-Date 2021 Results; Bookings Up 39 Percent, but Q3 Results Impacted by Challenging Operating Environment

Exhibit 99.1 CECO Environmental Reports Third Quarter and Year-to-Date 2021 Results; Bookings Up 39 Percent, but Q3 Results Impacted by Challenging Operating Environment DALLAS (Nov. 8, 2021) - CECO Environmental Corp. (Nasdaq: CECE), a leading global air quality and fluid handling company serving the energy, industrial and other niche markets, today reported its financial results for the third qu

August 18, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 13, 2021 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission

August 3, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2021 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission

August 3, 2021 EX-99.1

CECO Environmental Reports Second Quarter and Year-to-date 2021 Results;

Exhibit 99.1 CECO Environmental Reports Second Quarter and Year-to-date 2021 Results; ? Continued Growth in Backlog and Increases in Revenue Support Second Half Momentum ? Company Announces Share Buyback Plan DALLAS, Texas, August 3, 2021 - CECO Environmental Corp. (Nasdaq: CECE), a leading global air quality and fluid handling company serving the energy, industrial and other niche markets, today

August 3, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

same UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ? Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2021 or ? Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 0-07099 CECO ENVIRO

August 3, 2021 EX-99.2

CECO Environmental Announces $5 Million Share Repurchase Program

Exhibit 99.2 CECO Environmental Announces $5 Million Share Repurchase Program DALLAS ? August 3, 2021 / PRNewswire / - CECO Environmental Corp. (Nasdaq: CECE) today announced that its Board of Directors has authorized a share repurchase program under which CECO may purchase up to $5 million of its outstanding common shares through December 31, 2021. Todd Gleason, CECO?s Chief Executive Officer, co

May 27, 2021 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report CECO ENVIRONMENTAL CORP. (Exact name of registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report CECO ENVIRONMENTAL CORP. (Exact name of registrant as specified in its charter) Delaware 000-07099 13-2566064 (State or other jurisdiction of incorporation or organization) (Commission File Number) (I.R.S. Employer Identification No.) 14651 North Dallas Parkway Dallas, Texas 75254 (Address

May 27, 2021 EX-10..1

CECO Environmental Corp. 2021 Equity and Incentive Compensation Plan (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed with the SEC on May 27, 2021)

EX-10..1 2 cece-ex1016.htm EX-10.1 Exhibit 10.1 CECO ENVIRONMENTAL CORP. 2021 EQUITY and INCENTIVE Compensation PLAN 1.Purpose. The purpose of this Plan is to permit award grants to non-employee Directors, officers and other employees of the Company and its Subsidiaries, and certain consultants to the Company and its Subsidiaries, and to provide to such persons incentives and rewards for service a

May 27, 2021 EX-1.01

Conflict Minerals Report of CECO Environmental Corp.

EX-1.01 2 cece-ex1016.htm EX-1.01 Exhibit 1.01 CECO Environmental Corp. Conflict Minerals Report For the reporting period from January 1, 2020 to December 31, 2020 This Conflict Minerals Report (this “Report”) of CECO Environmental Corp. (including its consolidated subsidiaries, the “Company “) has been prepared pursuant to Rule 13p-1 and Form SD promulgated under the Securities Exchange Act of 19

May 27, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 25, 2021 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission Fi

May 25, 2021 EX-24.1

Power of Attorney

EX-24.1 4 d116973dex241.htm EX-24.1 EXHIBIT 24.1 POWER OF ATTORNEY KNOW ALL PERSONS BY THESE PRESENTS, that each of the undersigned officers and directors of CECO Environmental Corp., a Delaware corporation (the “Registrant”), hereby constitutes and appoints Todd Gleason, Matthew Eckl, Paul Gohr and Chasity Henry, or any of them, each acting alone, as the true and lawful attorney-in-fact or agent,

May 25, 2021 S-8

As filed with the Securities and Exchange Commission on May 25, 2021

As filed with the Securities and Exchange Commission on May 25, 2021 Registration No.

May 6, 2021 EX-99..1

CECO Environmental Reports First Quarter 2021 Results; Strong Start to 2021 Achieving Significant Growth in Bookings and Backlog

EX-99..1 2 cece-ex9919.htm EX-99..1 Exhibit 99.1 CECO Environmental Reports First Quarter 2021 Results; Strong Start to 2021 Achieving Significant Growth in Bookings and Backlog DALLAS, Texas, May 6, 2021 - CECO Environmental Corp. (Nasdaq: CECE), a leading global air quality and fluid handling company serving the energy, industrial and other niche markets, today reported its financial results for

May 6, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 6, 2021 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission Fil

May 6, 2021 10-Q

Quarterly Report - 10-Q

same UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ? Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2021 or ? Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 0-07099 CECO ENVIR

April 15, 2021 DEF 14A

CECO Environmental Corp. 2021 Equity and Incentive Compensation Plan (Incorporated by reference to Appendix I to the Registrant’s definitive proxy statement on Schedule 14A (Commission File No. 000-07099) filed on April 15. 2021)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ? Filed by a party other than the Registrant ? Check the appropriate box: ? Preliminary proxy statement ? Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ? Definitive proxy statement ? Definitive additional materials ? Soliciting material pursuant to Sec.

April 15, 2021 DEFA14A

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ? Filed by a party other than the Registrant ? Check the appropriate box: ? Preliminary proxy statement ? Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ? Definitive proxy statement ? Definitive additional materials ? Soliciting material pursuant to Sec.

April 6, 2021 EX-99.1

CECO Environmental Appoints Ramesh Nuggihalli as Chief Operating Officer

EX-99.1 2 d35257dex991.htm EX-99.1 Exhibit 99.1 Press Release CECO Environmental Appoints Ramesh Nuggihalli as Chief Operating Officer Dallas, TX. April 6, 2021—CECO Environmental Corp. (“CECO,” “CECO Environmental,” the “Company”) (NASDAQ: CECE), a global leader in providing environmental and equipment solutions to a variety of end markets, is pleased to announce that Ramesh Nuggihalli has been a

April 6, 2021 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest reported): April 6, 2021 CECO Environmental Corp. (Exact Name of Registrant as Specified in its Charter) Delaware 000-7099 13-2566064 (State or Other Jurisdiction of Incorporation) (Commission File Nu

March 3, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 3, 2021 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission F

March 3, 2021 EX-21

Subsidiaries of the Company

Exhibit 21 SUBSIDIARIES OF THE COMPANY Subsidiary State/County Aarding Thermal Acoustics B.

March 3, 2021 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark one) ? Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2020 or ? Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 0-7099 CECO ENVIRONMENTAL CO

March 3, 2021 EX-99.1

CECO Environmental Corp. Reports Fourth Quarter and Full Year 2020 Results; Sequential Increases in Revenue, Adjusted EBITDA and Bookings Demonstrate Continued Execution and Improved Momentum

Exhibit 99.1 CECO Environmental Corp. Reports Fourth Quarter and Full Year 2020 Results; Sequential Increases in Revenue, Adjusted EBITDA and Bookings Demonstrate Continued Execution and Improved Momentum DALLAS, Texas, March 3, 2021 - CECO Environmental Corp. (Nasdaq: CECE), a leading global air quality and fluid handling company serving the energy, industrial and other niche markets, today repor

February 12, 2021 SC 13G/A

SCHEDULE 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3 )* CECO Environmental Corp (Name of Issuer) Common Stock (Title of Class of Securities) 125141101 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which thi

February 11, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) Information Statement Pursuant to Rules 13d-1 Under the Securities Exchange Act of 1934 (Amendment No. 5)*

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) Information Statement Pursuant to Rules 13d-1 Under the Securities Exchange Act of 1934 (Amendment No. 5)* CECO ENVIRONMENTAL CORP. (Name of Issuer) Common Stock, Par Value of $0.01 Per Share (Title of Class of Securities) 125141101 (CUSIP Number) December 31, 2020 Date of Event Which Requires Filin

February 11, 2021 EX-99.1

February 11, 2021

EX-99.1 2 a21-55655ex99d1.htm EX-99.1 Exhibit 1 EXHIBIT 1 TO SCHEDULE 13G February 11, 2021 In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, TRIGRAN INVESTMENTS, INC., DOUGLAS GRANAT, LAWRENCE A. OBERMAN, STEVEN G. SIMON, BRADLEY F. SIMON and STEVEN R. MONIESON each hereby agree to the joint filing of this statement on Schedule 13G (including any and all a

February 11, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) Information Statement Pursuant to Rules 13d-1 Under the Securities Exchange Act of 1934 (Amendment No. 2)*

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) Information Statement Pursuant to Rules 13d-1 Under the Securities Exchange Act of 1934 (Amendment No. 2)* CECO ENVIRONMENTAL CORP. (Name of Issuer) Common Stock, Par Value of $0.01 Per Share (Title of Class of Securities) 125141101 (CUSIP Number) December 31, 2020 Date of Event Which Requires Filin

February 11, 2021 SC 13G

United States Securities and Exchange Commission Washington, D.C. 20549

United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* CECO ENVIRONMENTAL CORP. (Name of Issuer) COMMON STOCK (Title of Class of Securities) 125141101 (CUSIP Number) DECEMBER 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this

November 4, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2020 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 0-07099 CECO ENVIRO

November 4, 2020 EX-10.2

Employment Agreement, effective as of July 6, 2020, by and between CECO Environmental Corp. and Todd Gleason.

Exhibit 10.2 EXECUTIVE EMPLOYMENT AGREEMENT THIS EXECUTIVE EMPLOYMENT AGREEMENT, by and between CECO Environmental Corp., a Delaware corporation (the “Company”), and Todd R. Gleason (“Executive”), is dated as of the 5th day of July, 2020 (the “Agreement”). The Company wishes to employ Executive on the terms and conditions, and for the consideration, hereinafter set forth, and Executive desires to

November 4, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 4, 2020 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commissio

November 4, 2020 EX-99.1

CECO Environmental Corp. Reports Third Quarter and Year-to-Date 2020 Results; Proactive Cost-Out Programs as CECO Navigates Covid-19 Related Challenges in Energy Markets

Exhibit 99.1 CECO Environmental Corp. Reports Third Quarter and Year-to-Date 2020 Results; Proactive Cost-Out Programs as CECO Navigates Covid-19 Related Challenges in Energy Markets DALLAS, Texas, November 4, 2020 - CECO Environmental Corp. (Nasdaq: CECE), a leading global air quality and fluid handling company serving the energy, industrial and other niche markets, today reported its financial r

November 4, 2020 EX-10.1

Separation and Consulting Agreement, dated as of July 5, 2020, by and between CECO Environmental Corp. and Dennis Sadlowski.

EX-10.1 2 cece-ex10148.htm EX-10.1 Exhibit 10.1 SEPARATION AND CONSULTING AGREEMENT This Separation and Consulting Agreement (this “Separation Agreement”) between CECO Environmental Corp. (the “Company”) and Dennis Sadlowski (“you” and similar words) sets forth certain terms of your separation from the Company, including certain terms required under the Executive Employment Agreement, dated June 1

October 14, 2020 424B3

CECO Environmental Corp. Dividend Reinvestment Plan

424B3 1 d62500d424b3.htm 424B3 Filed Pursuant to Rule 424(b)(3) Registration No. 333-183275 Prospectus Supplement dated October 5, 2020 (To Prospectus dated August 13, 2012) CECO Environmental Corp. Dividend Reinvestment Plan This prospectus supplement, dated October 5, 2020, updates and supplements the CECO Environmental Corp. Dividend Reinvestment Plan (the “Plan”) prospectus dated August 13, 20

August 5, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 5, 2020 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission

August 5, 2020 10-Q

Quarterly Report - 10-Q

same UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2020 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 0-07099 CECO ENVIRO

August 5, 2020 EX-99.1

CECO Environmental Corp. Reports Second Quarter and Year-to-Date 2020 Results; Initiatives Implemented Generated Cost Savings and Delivered Improved Operating Income

Exhibit 99.1 CECO Environmental Corp. Reports Second Quarter and Year-to-Date 2020 Results; Initiatives Implemented Generated Cost Savings and Delivered Improved Operating Income DALLAS, Texas, August 5, 2020 - CECO Environmental Corp. (Nasdaq: CECE), a leading global air quality and fluid handling company serving the energy, industrial and other niche markets, today reported its financial results

July 6, 2020 EX-4.4

Nonqualified Premium Stock Option Inducement Award Agreement, by and between CECO Environmental Corp. and Todd Gleason, dated as of July 6, 2020 (incorporated by reference to Exhibit 4.4 to the Registrant’s Registration Statement on Form S-8 (Commission File No. 333-239707) filed on July 6, 2020)

EX-4.4 Exhibit 4.4 CECO ENVIRONMENTAL CORP. Nonqualified Premium Stock Option Inducement Award Agreement This NONQUALIFIED STOCK OPTION INDUCEMENT AWARD AGREEMENT (this “Agreement”) is made as of July 6, 2020, by and between CECO Environmental Corp., a Delaware corporation (the “Company”), and Todd Gleason (“Optionee”) with respect to the grant by the Company of nonqualified options to purchase Co

July 6, 2020 EX-4.3

Nonqualified Stock Option Inducement Award Agreement, by and between CECO Environmental Corp. and Todd Gleason, dated as of July 6, 2020 (incorporated by reference to Exhibit 4.3 to the Registrant’s Registration Statement on Form S-8 (Commission File No. 333-239707) filed on July 6, 2020)

Exhibit 4.3 CECO ENVIRONMENTAL CORP. Nonqualified Stock Option Inducement Award Agreement This NONQUALIFIED STOCK OPTION INDUCEMENT AWARD AGREEMENT (this “Agreement”) is made as of July 6, 2020, by and between CECO Environmental Corp., a Delaware corporation (the “Company”), and Todd Gleason (“Optionee”) with respect to the grant by the Company of nonqualified options to purchase Common Stock to O

July 6, 2020 EX-4.5

Restricted Stock Units Inducement Award Agreement, by and between CECO Environmental Corp. and Todd Gleason, dated as of July 6, 2020 (incorporated by reference to Exhibit 4.5 to the Registrant’s Registration Statement on Form S-8 (Commission File No. 333-239707) filed on July 6, 2020)

EX-4.5 Exhibit 4.5 CECO ENVIRONMENTAL CORP. Restricted Stock Units Inducement Award Agreement This RESTRICTED STOCK UNITS INDUCEMENT AWARD AGREEMENT (this “Agreement”) is made as of July 6, 2020, by and between CECO Environmental Corp., a Delaware corporation (the “Company”), and Todd Gleason (the “the Grantee”) with respect to the grant of restricted stock units by the Company to the Grantee (the

July 6, 2020 S-8

- S-8

S-8 As filed with the Securities and Exchange Commission on July 6, 2020 Registration No.

July 6, 2020 EX-24.1

Power of Attorney

EX-24.1 EXHIBIT 24.1 POWER OF ATTORNEY KNOW ALL PERSONS BY THESE PRESENTS, that each of the undersigned officers and directors of CECO Environmental Corp., a Delaware corporation (the “Registrant”), hereby constitutes and appoints Matthew Eckl, Paul Gohr and Chasity Henry, or any of them, each acting alone, as the true and lawful attorney-in-fact or agent, or attorneys-in-fact or agents, for each

July 6, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

8-K 1 d34099d8k.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 2, 2020 CECO Environmental Corp. (Exact Name of Registrant as Specified in its Charter) Delaware 000-7099 13-2566064 (State or Other Jurisdiction of Incorpo

June 17, 2020 EX-24.1

Power of Attorney

EXHIBIT 24.1 POWER OF ATTORNEY KNOW ALL PERSONS BY THESE PRESENTS, that each of the undersigned officers and directors of CECO Environmental Corp., a Delaware corporation (the “Registrant”), hereby constitutes and appoints Dennis Sadlowski, Matthew Eckl, Paul Gohr and Chasity Henry, or any of them, each acting alone, as the true and lawful attorney-in-fact or agent, or attorneys-in-fact or agents,

June 17, 2020 S-8

- S-8

As filed with the Securities and Exchange Commission on June 17, 2020 Registration No.

June 16, 2020 EX-10.1

CECO Environmental Corp. 2020 Employee Stock Purchase Plan (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed with the SEC on June 16, 2020)

CECO Environmental Corp. 2020 Employee Stock Purchase Plan WITNESSETH: WHEREAS, CECO Environmental Corp. (the “Corporation”) desires to provide eligible employees of the Corporation and its subsidiaries interest in the Corporation through the purchase of shares of common stock of the Corporation (“Common Stock”); and WHEREAS, the Corporation desires to offer further inducement to eligible employee

June 16, 2020 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest reported): June 11, 2020 CECO Environmental Corp. (Exact Name of Registrant as Specified in its Charter) Delaware 000-7099 13-2566064 (State or Other Jurisdiction of Incorporation) (Commission File Nu

May 29, 2020 DEFA14A

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive proxy statement ☒ Definitive additional materials ☐ Soliciting material pursuant to Sec.

May 27, 2020 EX-1.01

Conflict Minerals Report of CECO Environmental Corp.

Exhibit 1.01 CECO Environmental Corp. Conflict Minerals Report For the reporting period from January 1, 2019 to December 31, 2019 This Conflict Minerals Report (this “Report”) of CECO Environmental Corp. (including its consolidated subsidiaries, the “Company ”) has been prepared pursuant to Rule 13p-1 and Form SD promulgated under the Securities Exchange Act of 1934 for the reporting period from J

May 27, 2020 SD

- SD

SD 1 cece-sd.htm SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report CECO ENVIRONMENTAL CORP. (Exact name of registrant as specified in its charter) Delaware 000-07099 13-2566064 (State or other jurisdiction of incorporation or organization) (Commission File Number) (I.R.S. Employer Identification No.) 14651 North Dallas Parkway Dallas,

May 6, 2020 EX-99.1

CECO Environmental Corp. Reports First Quarter 2020 Results; Continued Progress on Strong Execution Despite COVID-19 Headwinds

Exhibit 99.1 CECO Environmental Corp. Reports First Quarter 2020 Results; Continued Progress on Strong Execution Despite COVID-19 Headwinds DALLAS, Texas, May 6, 2020 - CECO Environmental Corp. (Nasdaq: CECE), a leading global air quality and fluid handling company serving the energy, industrial and other niche markets, today reported its financial results for the first quarter 2020. Highlights of

May 6, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 6, 2020 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission Fil

May 6, 2020 10-Q

Quarterly Report - 10-Q

10-Q 1 cece-10q20200331.htm 10-Q same UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2020 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commi

April 24, 2020 DEF 14A

- DEF 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive proxy statement ☐ Definitive additional materials ☐ Soliciting material pursuant to Sec.

April 24, 2020 DEFA14A

- DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive proxy statement ☒ Definitive additional materials ☐ Soliciting material pursuant to Sec.

April 7, 2020 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 7, 2020 CECO Environmental Corp. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or Other Jurisdiction of Incorporation) (Commission F

April 7, 2020 EX-99.1

CECO ENVIRONMENTAL ANNOUNCES PROACTIVE MEASURES DURING COVID-19 PANDEMIC

Exhibit 99.1 CECO ENVIRONMENTAL ANNOUNCES PROACTIVE MEASURES DURING COVID-19 PANDEMIC DALLAS, Texas, April 7, 2020 - CECO Environmental Corp.(“CECO,” “CECO Environmental” or the “Company”) (NASDAQ: CECE), a global leader in air quality and fluid handling solutions, announced today the implementation of proactive steps designed to support customer commitments while instituting business continuity a

March 4, 2020 EX-99.1

CECO Announces 2019 Fourth Quarter and Full Year Results; Solid Fourth Quarter and Second Half Results Demonstrate Progress in 2019

EX-99.1 2 cece-ex9916.htm EX-99.1 Exhibit 99.1 CECO Announces 2019 Fourth Quarter and Full Year Results; Solid Fourth Quarter and Second Half Results Demonstrate Progress in 2019 DALLAS, Texas, March 4, 2020 - CECO Environmental Corp. (Nasdaq: CECE), a leading global air quality and fluid handling company serving the energy and industrial markets, today reported its financial results for the fourt

March 4, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 4, 2020 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission F

March 4, 2020 10-K

Annual Report on Form 10-K for the year ended December 31, 2019

10-K 1 cece-10k20191231.htm 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark one) ☒ Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2019 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File

March 4, 2020 EX-21

Subsidiaries of the Company

Exhibit 21 SUBSIDIARIES OF THE COMPANY Subsidiary State/Country Aarding Thermal Acoustics B.

March 4, 2020 EX-4.1

Description of Securities (incorporated by reference to Exhibit 4.1 to the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2019)

EX-4.1 2 cece-ex4199.htm EX-4.1 Exhibit 4.1 DESCRIPTION OF SECURITIES REGISTERED UNDER SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 The following is a summary of the terms and provisions of the common stock, par value $0.01 per share, of CECO Environmental Corp., a Delaware corporation (“CECO,” the “Company,” “we”, “us” or “our”), and is qualified in its entirety by reference to the Company’s

February 12, 2020 SC 13G/A

CECE / CECO Environmental Corp. / TRIGRAN INVESTMENTS LP - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) Information Statement Pursuant to Rules 13d-1 Under the Securities Exchange Act of 1934 (Amendment No. 1)* CECO Environmental Corp. (Name of Issuer) Common Stock, $0.01 par value (Title of Class of Securities) 125141101 (CUSIP Number) December 31, 2019 Date of Event Which Requires Filing of the Stat

February 12, 2020 SC 13G/A

CECE / CECO Environmental Corp. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* CECO ENVIRONMENTAL CORP (Name of Issuer) Common Stock (Title of Class of Securities) 125141101 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this

February 12, 2020 EX-1

February 12, 2020

Exhibit 1 EXHIBIT 1 TO SCHEDULE 13G February 12, 2020 In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, TRIGRAN INVESTMENTS, INC.

February 12, 2020 SC 13G/A

CECE / CECO Environmental Corp. / Trigran Investments, Inc. - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) Information Statement Pursuant to Rules 13d-1 Under the Securities Exchange Act of 1934 (Amendment No. 4)* CECO Environmental Corp. (Name of Issuer) Common Stock, $0.01 par value (Title of Class of Securities) 125141101 (CUSIP Number) December 31, 2019 Date of Event Which Requires Filing of the Stat

November 6, 2019 10-Q

CECE / CECO Environmental Corp. 10-Q - Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2019 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 0-7099 CECO ENVIRON

November 6, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 cece-8k20190930.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 6, 2019 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdictio

November 6, 2019 EX-99.1

CECO Environmental Corp. Reports Third Quarter 2019 Results; Record Backlog Driven by Continued Bookings Strength and Strategic Investments

Exhibit 99.1 CECO Environmental Corp. Reports Third Quarter 2019 Results; Record Backlog Driven by Continued Bookings Strength and Strategic Investments DALLAS, Texas, November 6, 2019 - CECO Environmental Corp. (Nasdaq: CECE), a leading global air quality and fluid handling company serving the energy and industrial markets, today reported its financial results for the third quarter of 2019. Highl

August 27, 2019 SC 13G

CECE / CECO Environmental Corp. / TRIGRAN INVESTMENTS LP - SC 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) Information Statement Pursuant to Rules 13d-1 Under the Securities Exchange Act of 1934* CECO Environmental Corp. (Name of Issuer) Common Stock, $0.01 par value (Title of Class of Securities) 125141101 (CUSIP Number) August 21, 2019 Date of Event Which Requires Filing of the Statement Check the appr

August 27, 2019 EX-1

AUGUST 27, 2019

Exhibit 1 EXHIBIT 1 TO SCHEDULE 13G AUGUST 27, 2019 In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, TRIGRAN INVESTMENTS, INC.

August 27, 2019 SC 13G/A

CECE / CECO Environmental Corp. / Trigran Investments, Inc. - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) Information Statement Pursuant to Rules 13d-1 Under the Securities Exchange Act of 1934 (Amendment No. 3)* CECO Environmental Corp. (Name of Issuer) Common Stock, $0.01 par value (Title of Class of Securities) 125141101 (CUSIP Number) August 21, 2019 Date of Event Which Requires Filing of the Statem

August 6, 2019 EX-99.1

CECO Environmental Corp. Reports Second Quarter and Six Months 2019 Results; Strong Bookings and Growing Backlog Support Second Half Ramp Up

Exhibit 99.1 CECO Environmental Corp. Reports Second Quarter and Six Months 2019 Results; Strong Bookings and Growing Backlog Support Second Half Ramp Up DALLAS, Texas, August 6, 2019 - CECO Environmental Corp. (Nasdaq: CECE), a leading global air quality and fluid handling company serving the energy, industrial and other niche markets, today reported its financial results for the second quarter a

August 6, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 6, 2019 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission

August 6, 2019 10-Q

CECE / CECO Environmental Corp. 10-Q - Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2019 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 0-7099 CECO ENVIRONMENTA

June 12, 2019 EX-10.1

Second Amended and Restated Credit Agreement, dated as of June 11, 2019, among CECO Environmental Corp. and certain of its subsidiaries, the Lenders party thereto, and Bank of America, N.A. (Incorporated by reference to Exhibit 10.1 to the Company’s Current report on Form 8-K filed with the SEC on June 12, 2019)

EX-10.1 Exhibit 10.1 Execution Version Published Deal CUSIP Number: 12514DAF2 Published Revolving Credit Facility CUSIP Number: 12514DAG0 Published Term Loan Facility CUSIP Number: 12514DAH8 SECOND AMENDED AND RESTATED CREDIT AGREEMENT Dated as of June 11, 2019 among CECO ENVIRONMENTAL CORP. and CERTAIN SUBSIDIARIES, as Borrowers, THE LENDERS PARTY HERETO, BANK OF AMERICA, N.A., as Administrative

June 12, 2019 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 11, 2019 CECO Environmental Corporation (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or Other Jurisdiction of Incorporation) (Co

June 6, 2019 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest reported): June 5, 2019 CECO Environmental Corp. (Exact Name of Registrant as Specified in its Charter) Delaware 000-7099 13-2566064 (State or Other Jurisdiction of Incorporation) (Commission File Num

May 28, 2019 SD

CECE / CECO Environmental Corp. SD - - 2019 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report CECO ENVIRONMENTAL CORP. (Exact name of registrant as specified in its charter) Delaware 000-07099 13-2566064 (State or other jurisdiction of incorporation or organization) (Commission File Number) (I.R.S. Employer Identification No.) 14651 North Dallas Parkway Dallas, Texas 75254 (Address

May 28, 2019 EX-1.01

Conflict Minerals Report of CECO Environmental Corp.

EX-1.01 2 cece-ex1016.htm EX-1.01 Exhibit 1.01 CECO Environmental Corp. Conflict Minerals Report For the reporting period from January 1, 2018 to December 31, 2018 This Conflict Minerals Report (this “Report”) of CECO Environmental Corp. (including its consolidated subsidiaries, the “Company”) has been prepared pursuant to Rule 13p-1 and Form SD promulgated under the Securities Exchange Act of 193

May 8, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2019 CECO ENVIRONMENTAL CORP. (Exact Name of registrant as specified in its charter) Delaware 000-7099 13-2566064 (State or other jurisdiction of incorporation) (Commission Fil

May 8, 2019 EX-99.1

CECO Environmental Corp. Reports First Quarter 2019 Results; Significant Increase in Revenues, Bookings and Backlog

Exhibit 99.1 CECO Environmental Corp. Reports First Quarter 2019 Results; Significant Increase in Revenues, Bookings and Backlog DALLAS, Texas, May 8, 2019 - CECO Environmental Corp. (Nasdaq: CECE), a leading global air quality and fluid handling company serving the energy, industrial and other niche markets, today reported its financial results for the first quarter 2019. Highlights of the First

May 8, 2019 10-Q

CECE / CECO Environmental Corp. 10-Q Quarterly Report 10-Q

10-Q 1 cece-10q20190331.htm 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2019 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission

May 1, 2019 CORRESP

CECE / CECO Environmental Corp. CORRESP - -

CORRESP CECO Environmental Corp. 14651 North Dallas Parkway, Suite 500 Dallas, Texas 75254 May 1, 2019 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, NE Washington, D.C. 20549 Attn: Edward M. Kelly Re: CECO Environmental Corp. Registration Statement on Form S-3 (File No. 333-231001) Ladies and Gentlemen: On behalf of CECO Environmental Corp

April 24, 2019 DEFA14A

CECE / CECO Environmental Corp. DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive proxy statement ☒ Definitive additional materials ☐ Soliciting material pursuant to Sec.

April 24, 2019 DEF 14A

CECE / CECO Environmental Corp. DEFINITIVE PROXY STATEMENT

Definitive Proxy Statement Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive proxy statement ☐ Definitive additional materials ☐ Soliciting material pursuant to Sec.

April 24, 2019 EX-25.1

Form T-1 Statement of Eligibility under Trust Indenture Act of 1939 of Trustee under Debt Securities Indenture.

EX-25.1 Exhibit 25.1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 ☐ Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) WILMINGTON TRUST, NATIONAL ASSOCIATION (Exact name of trustee as specified in its charter) 16-1486454 (I.R.S. employer identification no.) 1100 North Market Street Wilmington, DE 19890-0001 (Address of pr

April 24, 2019 EX-24.1

Power of Attorney.

EX-24.1 Exhibit 24.1 CECO ENVIRONMENTAL CORP. REGISTRATION STATEMENT ON FORM S-3 POWER OF ATTORNEY KNOW ALL BY THESE PRESENTS, that each of the undersigned directors and officers of CECO Environmental Corp., a Delaware corporation (the “Registrant”), does hereby constitute and appoint Dennis Sadlowski, Matthew Eckl, Paul Gohr and Jay Nield, or any of them, each acting alone, as the true and lawful

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