BTUI / Btu International Inc - Pemfailan SEC, Laporan Tahunan, Penyata Proksi

Btu International Inc
US
SIMBOL INI TIDAK AKTIF LAGI

Statistik Asas
CIK 840883
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 Btu International Inc
SEC Filings (Chronological Order)
Halaman ini menyediakan senarai kronologi lengkap bagi Pemfailan SEC, tidak termasuk pemfailan pemilikan yang kami sediakan di tempat lain.
February 17, 2015 SC 13G/A

BTUI / Btu International Inc / AMERIPRISE FINANCIAL INC - SC 13G/A Passive Investment

SC 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Amendment #4 Under the Securities and Exchange Act of 1934 BTU International, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 056032105 (CUSIP Number) December 31, 2014 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedu

February 17, 2015 EX-99.I

to Schedule 13G

EX-99.I Exhibit I to Schedule 13G Ameriprise Financial, Inc., a Delaware Corporation, is a parent holding company. The classification and identity of the relevant subsidiaries is as follows: Investment Adviser – Columbia Management Investment Advisers, LLC is an investment adviser registered under section 203 of the Investment Advisers Act of 1940.

February 17, 2015 EX-99.II

to Schedule 13G Joint Filing Agreement

EX-99.II Exhibit II to Schedule 13G Joint Filing Agreement The undersigned persons agree and consent to the joint filing on their behalf of this Schedule 13G dated February 13, 2015 in connection with their beneficial ownership of BTU International, Inc. Columbia Management Investment Advisers, LLC authorizes Ameriprise Financial, Inc. to execute the Schedule 13G to which this Exhibit is attached

February 13, 2015 SC 13G/A

BTUI / Btu International Inc / PRICE T ROWE ASSOCIATES INC /MD/ - BTUI AS OF 12/31/2014 Passive Investment

SC 13G/A 1 btui13gadec14.htm BTUI AS OF 12/31/2014 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 9) BTU INTERNATIONAL INC (Name of Issuer) COMMON STOCK (Title of Class of Securities) 056032105 (CUSIP Number) December 31, 2014 (Date of Event which Requires Filing of Statement) Check the appropriate box t

February 10, 2015 15-12G

BTUI / Btu International Inc 15-12G - - FORM 15

Form 15 OMB APPROVAL OMB Number: 3235-0167 Expires: February 28, 2015 Estimated average burden hours per response 1.

January 30, 2015 8-K

Changes in Control of Registrant, 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, Material Modification to Rights of Security Holders, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets, Submission of Matters to a Vote of Security Holders

Form 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 29, 2015 BTU International, Inc. (Exact name of registrant as specified in its charter) Delaware 000-17297 04-2781248 (State or other jurisdiction of incorporation (Co

January 30, 2015 EX-3.2

AMENDED AND RESTATED BY-LAWS OF BTU INTERNATIONAL, INC. ARTICLE I

EX-3.2 Exhibit 3.2 AMENDED AND RESTATED BY-LAWS OF BTU INTERNATIONAL, INC. ARTICLE I OFFICES Section 1.01 Offices. The address of the registered office of BTU International, Inc. (hereinafter called the “Corporation”) in the State of Delaware shall be at Corporation Trust Center, 1209 Orange Street, in the City of Wilmington, County of New Castle, Delaware 19801. The Corporation may have other off

January 30, 2015 EX-3.1

AMENDED AND RESTATED CERTIFICATE OF INCORPORATION BTU INTERNATIONAL, INC.

EX-3.1 Exhibit 3.1 AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF BTU INTERNATIONAL, INC. BTU International, Inc., a corporation organized and existing under the laws of the State of Delaware, hereby certifies as follows: 1. The name of the corporation is BTU International, Inc. (the “Corporation”). The date of filing of its original Certificate of Incorporation with the Secretary of State w

January 16, 2015 425

BTUI / Btu International Inc 425 - Merger Prospectus - FORM 8-K

Form 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 16, 2015 BTU International, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 000-17297 04-2781248 (State or Other Jurisdiction of Incorporation) (Comm

January 16, 2015 DEFA14A

BTUI / Btu International Inc DEFA14A - - DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x 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 Pr

January 16, 2015 425

BTUI / Btu International Inc 425 - Merger Prospectus - 425

425 Filed by BTU International, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed under Rule 14a-12 of the Securities Exchange Act of 1934 Subject Company: BTU International, Inc. Commission File No.: 000-17297 The following is a transcript of a presentation given to attendees at Needham & Company’s 17th Annual Growth Conference in New York, on Tuesday, January 13, 2015,

January 16, 2015 8-K

Other Events

Form 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 16, 2015 BTU International, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 000-17297 04-2781248 (State or Other Jurisdiction of Incorporation) (Comm

January 15, 2015 425

ASYS / Amtech Systems, Inc. 425 - Merger Prospectus - 425

Filed by: Amtech Systems, Inc. (File No. 000-11412) Pursuant to Rule 425 under the Securities Act of 1933 (deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934) Subject Company: BTU International, Inc. (File No. 000-17297) • The following is a transcript of a presentation given to attendees at Needham and Company's 17th Annual Growth Conference in New York on Tuesday, Jan

January 14, 2015 425

BTUI / Btu International Inc 425 - Merger Prospectus - 425

425 Filed by BTU International, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed under Rule 14a-12 of the Securities Exchange Act of 1934 Subject Company: BTU International, Inc. Commission File No.: 000-17297 The following is a presentation to attendees at Needham & Company’s 17th Annual Growth Conference in New York, on Tuesday, January 13, 2015, at the New York Palace

January 13, 2015 425

ASYS / Amtech Systems, Inc. 425 - Merger Prospectus -

amtechneedhamconfjan2015 • The following is a presentation to attendees at Needham & Company's 17th Annual Growth Conference in New York, on Tuesday, January 13, at the New York Palace Hotel.

December 23, 2014 DEFM14A

BTUI / Btu International Inc DEFM14A - - DEFINITIVE PROXY STATEMENT

Definitive Proxy Statement Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

November 24, 2014 425

ASYS / Amtech Systems, Inc. 425 - Merger Prospectus - 425

Filed by: Amtech Systems, Inc. (File No. 000-11412) Pursuant to Rule 425 under the Securities Act of 1933 (deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934) Subject Company: BTU International, Inc. (File No. 000-17297) Amtech Systems' (ASYS) CEO Fokko Pentinga on Q4 2014 Results - Earnings Call Transcript Nov. 24, 2014 9:25 AM ET | About: Amtech Systems, Inc. (ASYS) C

November 21, 2014 425

ASYS / Amtech Systems, Inc. 425 - Merger Prospectus - 425

Filed by: Amtech Systems, Inc. (File No. 000-11412) Pursuant to Rule 425 under the Securities Act of 1933 (deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934) Subject Company: BTU International, Inc. (File No. 000-17297) Amtech Reports Fourth Quarter and Fiscal 2014 Results TEMPE, Ariz., November 20, 2014 /PRNewswire/ - Amtech Systems, Inc. (NASDAQ: ASYS), a global supp

November 10, 2014 10-Q

BTUI FORM 10-Q (Quarterly Report)

Form 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

October 29, 2014 425

BTUI / Btu International Inc 425 - Merger Prospectus - 425

425 Filed by BTU International, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed under Rule 14a-12 of the Securities Exchange Act of 1934 Subject Company: BTU International, Inc. Commission File No.: 000-17297 THOMSON REUTERS STREETEVENTS EDITED TRANSCRIPT BTUI - Q3 2014 BTU International Inc Earnings Call EVENT DATE/TIME: OCTOBER 28, 2014 / 09:00PM GMT THOMSON REUTERS S

October 28, 2014 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) October 28, 2014 BTU International, Inc. (Exact name of registrant as specified in its charter) DELAWARE 000-17297 04-2781248 (State or other jurisdiction of incorporation) (Commission

October 28, 2014 425

BTUI / Btu International Inc 425 - Merger Prospectus - 425

425 Filed by BTU International, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed under Rule 14a-12 of the Securities Exchange Act of 1934 Subject Company: BTU International, Inc. Commission File No.: 000-17297 FOR IMMEDIATE RELEASE BTU International Reports Third Quarter 2014 Results NORTH BILLERICA, Mass., October 28, 2014— BTU International, Inc. (Nasdaq: BTUI), a lead

October 28, 2014 EX-99

BTU International Reports Third Quarter 2014 Results

EXHIBIT 99.1 BTU International Reports Third Quarter 2014 Results NORTH BILLERICA, Mass., Oct. 28, 2014 (GLOBE NEWSWIRE) - BTU International, Inc. (Nasdaq:BTUI), a leading supplier of advanced thermal processing equipment to the electronics manufacturing and alternative energy markets, today announced its financial results for the third quarter ended on September 28, 2014. Third quarter net sales

October 23, 2014 EX-2.1

AGREEMENT AND PLAN OF MERGER BY AND AMONG AMTECH SYSTEMS, INC., BTU MERGER SUB, INC., BTU INTERNATIONAL, INC. Dated as of October 21, 2014 TABLE OF CONTENTS Page ARTICLE I THE MERGER 2 Section 1.1 The Merger 2 Section 1.2 Closing 2 Section 1.3 Effect

EX-2.1 Exhibit 2.1 EXECUTION VERSION AGREEMENT AND PLAN OF MERGER BY AND AMONG AMTECH SYSTEMS, INC., BTU MERGER SUB, INC., AND BTU INTERNATIONAL, INC. Dated as of October 21, 2014 TABLE OF CONTENTS Page ARTICLE I THE MERGER 2 Section 1.1 The Merger 2 Section 1.2 Closing 2 Section 1.3 Effective Time 2 Section 1.4 Effects of the Merger 3 Section 1.5 Bylaws 3 Section 1.6 Certificate of Incorporation

October 23, 2014 EX-99.5

Amtech Systems, Inc. Customer Letter

EX-99.5 Exhibit 99.5 Amtech Systems, Inc. Customer Letter October 22, 2014 Dear Customer, I am pleased to inform you Amtech Systems, Inc. has reached an agreement to acquire BTU International, Inc., a proven leader in capital equipment for the semiconductor packaging and electronics assembly industries. For over 60 years, BTU has established itself as an industry leader with operations in the U.S.

October 23, 2014 425

BTUI / Btu International Inc 425 - Merger Prospectus - 425

425 Filed by BTU International, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed under Rule 14a-12 of the Securities Exchange Act of 1934 Subject Company: BTU International, Inc. Commission File No.: 000-17297 THOMSON REUTERS STREETEVENTS EDITED TRANSCRIPT ASYS - Amtech Systems Inc To Acquire BTU International In An All-Stock Transaction Call EVENT DATE/TIME: OCTOBER 22,

October 23, 2014 425

ASYS / Amtech Systems, Inc. 425 - Merger Prospectus - 425

425 Filed by Amtech Systems, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed under Rule 14a-12 of the Securities Exchange Act of 1934 Subject Company: BTU International, Inc. Commission File No.: 000-17297 The following is the transcript of a joint conference call held by BTU and Amtech Systems, Inc. on October 22, 2014 in connection with the proposed merger with Amtech

October 23, 2014 EX-99.3

AMTECH SYSTEMS TO ACQUIRE BTU INTERNATIONAL

EX-99.3 Exhibit 99.3 AMTECH SYSTEMS TO ACQUIRE BTU INTERNATIONAL October 22, 2014 Safe Harbor Statement This Presentation may contain certain statements or information that constitute “forward-looking statements” (as defined in Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended). In some but not all cases, forward-looking state

October 23, 2014 425

ASYS / Amtech Systems, Inc. 425 - Merger Prospectus - FORM 8-K

425 1 d809426d8k.htm FORM 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 October 21, 2014 Date of Report (Date of earliest event reported) Amtech Systems, Inc. (Exact name of registrant as specified in its charter) Arizona 000-11412 86-0411215 (State or other jurisdiction of

October 23, 2014 EX-99.6

Amtech Systems, Inc. Supplier Letter

EX-99.6 Exhibit 99.6 Amtech Systems, Inc. Supplier Letter Dear Valued Partner, I am pleased to inform you Amtech Systems, Inc. has reached an agreement to acquire BTU International, Inc., a proven leader in capital equipment for the semiconductor packaging and electronics assembly industries. For over 60 years, BTU has established itself as an industry leader with operations in the U.S. and China.

October 23, 2014 EX-99.2

AMTECH TO ACQUIRE BTU INTERNATIONAL IN AN ALL-STOCK TRANSACTION Brings Together Two Industry Leaders with Greater Scale, Operating Efficiencies and End Market Diversification Combination Reinforces Amtech’s Solar Growth Opportunities

EX-99.2 Exhibit 99.2 AMTECH TO ACQUIRE BTU INTERNATIONAL IN AN ALL-STOCK TRANSACTION Brings Together Two Industry Leaders with Greater Scale, Operating Efficiencies and End Market Diversification Combination Reinforces Amtech’s Solar Growth Opportunities Tempe, AZ and North Billerica, MA – October 22, 2014 – Amtech Systems, Inc. (NASDAQ: ASYS) (“Amtech”) and BTU International, Inc. (NASDAQ: BTUI)

October 23, 2014 EX-99.4

Amtech Systems, Inc. Employee Letter

EX-99.4 Exhibit 99.4 Amtech Systems, Inc. Employee Letter Dear Colleagues, I have some exciting news to share with you. Amtech Systems, Inc. has reached an agreement to acquire BTU International, Inc., a proven leader in capital equipment for the electronics assembly/ semiconductor packaging industry. With this strategic acquisition, we will combine two leaders in the thermal processing equipment

October 23, 2014 EX-99.1

VOTING AND SUPPORT AGREEMENT

EX-99.1 3 d809426dex991.htm EX-99.1 Exhibit 99.1 Execution Version VOTING AND SUPPORT AGREEMENT This VOTING AND SUPPORT AGREEMENT, dated as of October 21, 2014 (this “Agreement”), is made and entered into by and among Amtech Systems, Inc., an Arizona corporation (“Parent”) and the stockholders of BTU International, Inc., a Delaware corporation (the “Company”), that are listed on Schedule A hereto

October 22, 2014 EX-99.5

SECOND AGREEMENT REGARDING EMPLOYMENT TERMS

EX-99.5 Exhibit 99.5 SECOND AGREEMENT REGARDING EMPLOYMENT TERMS BTU International, Inc. (“BTU”) and Peter Tallian (“Mr. Tallian”) intend for this Second Agreement Regarding Employment Terms (the “Agreement) to modify (only as expressly stated herein): (i) the offer letter dated March 20, 2009 (which Mr. Tallian signed on March 21, 2009) (the “Offer Letter”); (ii) the Retention Agreement dated Mar

October 22, 2014 EX-99.3

EMPLOYMENT AGREEMENT

EX-99.3 Exhibit 99.3 EMPLOYMENT AGREEMENT This Employment Agreement (the “Agreement”) is made by and between Amtech Systems, Inc. (the “Company”), an Arizona corporation, and Paul J. van der Wansem (the “Executive”), this 21st day of October, 2014. WHEREAS, pursuant to the Merger Agreement between Company and BTU International, Inc. (“Beta”) dated October 21, 2014 (the “Merger Agreement”), Beta wi

October 22, 2014 EX-99.2

VOTING AND SUPPORT AGREEMENT

EX-99.2 Exhibit 99.2 Execution Version VOTING AND SUPPORT AGREEMENT This VOTING AND SUPPORT AGREEMENT, dated as of October 21, 2014 (this “Agreement”), is made and entered into by and among Amtech Systems, Inc., an Arizona corporation (“Parent”) and the stockholders of BTU International, Inc., a Delaware corporation (the “Company”), that are listed on Schedule A hereto (each a “Stockholder” and, c

October 22, 2014 425

BTUI / Btu International Inc 425 - Merger Prospectus - 425

425 Filed by BTU International, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed under Rule 14a-12 of the Securities Exchange Act of 1934 Subject Company: BTU International, Inc. Commission File No.: 000-17297 Forward-Looking Statements Any statements in this communication about future expectations, plans and prospects for the Company, including statements about the expe

October 22, 2014 425

BTUI / Btu International Inc 425 - Merger Prospectus - 425

425 The following is an investor presentation provided to investors of both BTU and Amtech Systems, Inc.

October 22, 2014 425

BTUI / Btu International Inc 425 - Merger Prospectus - 425

425 Filed by BTU International, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed under Rule 14a-12 of the Securities Exchange Act of 1934 Subject Company: BTU International, Inc. Commission File No.: 000-17297 Forward-Looking Statements Any statements in this communication about future expectations, plans and prospects for the Company, including statements about the expe

October 22, 2014 EX-3.2

Amended and Restated BTU International, Inc. Section 1. CERTIFICATE OF INCORPORATION AND BY-LAWS

EX-3.2 Exhibit 3.2 Amended and Restated By-Laws of BTU International, Inc. Section 1. CERTIFICATE OF INCORPORATION AND BY-LAWS 1.1. These by-laws are subject to the certificate of incorporation of the corporation. In these by-laws, references to the certificate of incorporation and by-laws mean the provisions of the certificate of incorporation and the by-laws as from time to time in effect. Secti

October 22, 2014 EX-99.4

CONSULTING AGREEMENT

EX-99.4 Exhibit 99.4 CONSULTING AGREEMENT This Consulting Agreement (“Agreement”) is made as of October 21, 2014 by and between Amtech Systems, Inc., an Arizona corporation (the “Company”), and Paul J. van der Wansem, an individual (“Consultant”). WHEREAS, contemporaneous with the execution of this Agreement, Consultant and the Company are entering into an Employment Agreement (the “Employment Agr

October 22, 2014 EX-99.6

AMTECH TO ACQUIRE BTU INTERNATIONAL IN AN ALL-STOCK TRANSACTION Brings Together Two Industry Leaders with Greater Scale, Operating Efficiencies and End Market Diversification Combination Reinforces Amtech’s Solar Growth Opportunities

EX-99.6 Exhibit 99.6 AMTECH TO ACQUIRE BTU INTERNATIONAL IN AN ALL-STOCK TRANSACTION Brings Together Two Industry Leaders with Greater Scale, Operating Efficiencies and End Market Diversification Combination Reinforces Amtech’s Solar Growth Opportunities Tempe, AZ and North Billerica, MA — October 22, 2014 — Amtech Systems, Inc. (NASDAQ: ASYS) (“Amtech”) and BTU International, Inc. (NASDAQ: BTUI)

October 22, 2014 425

BTUI / Btu International Inc 425 - Merger Prospectus - 8-K

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): October 21, 2014 BTU International, Inc.

October 22, 2014 EX-99.6

AMTECH TO ACQUIRE BTU INTERNATIONAL IN AN ALL-STOCK TRANSACTION Brings Together Two Industry Leaders with Greater Scale, Operating Efficiencies and End Market Diversification Combination Reinforces Amtech’s Solar Growth Opportunities

EX-99.6 Exhibit 99.6 AMTECH TO ACQUIRE BTU INTERNATIONAL IN AN ALL-STOCK TRANSACTION Brings Together Two Industry Leaders with Greater Scale, Operating Efficiencies and End Market Diversification Combination Reinforces Amtech’s Solar Growth Opportunities Tempe, AZ and North Billerica, MA — October 22, 2014 — Amtech Systems, Inc. (NASDAQ: ASYS) (“Amtech”) and BTU International, Inc. (NASDAQ: BTUI)

October 22, 2014 EX-99.5

SECOND AGREEMENT REGARDING EMPLOYMENT TERMS

EX-99.5 Exhibit 99.5 SECOND AGREEMENT REGARDING EMPLOYMENT TERMS BTU International, Inc. (“BTU”) and Peter Tallian (“Mr. Tallian”) intend for this Second Agreement Regarding Employment Terms (the “Agreement) to modify (only as expressly stated herein): (i) the offer letter dated March 20, 2009 (which Mr. Tallian signed on March 21, 2009) (the “Offer Letter”); (ii) the Retention Agreement dated Mar

October 22, 2014 EX-99.4

CONSULTING AGREEMENT

EX-99.4 Exhibit 99.4 CONSULTING AGREEMENT This Consulting Agreement (“Agreement”) is made as of October 21, 2014 by and between Amtech Systems, Inc., an Arizona corporation (the “Company”), and Paul J. van der Wansem, an individual (“Consultant”). WHEREAS, contemporaneous with the execution of this Agreement, Consultant and the Company are entering into an Employment Agreement (the “Employment Agr

October 22, 2014 EX-2.1

AGREEMENT AND PLAN OF MERGER BY AND AMONG AMTECH SYSTEMS, INC., BTU MERGER SUB, INC., BTU INTERNATIONAL, INC. Dated as of October 21, 2014 TABLE OF CONTENTS Page ARTICLE I THE MERGER 2 Section 1.1 The Merger 2 Section 1.2 Closing 2 Section 1.3 Effect

EX-2.1 Exhibit 2.1 EXECUTION VERSION AGREEMENT AND PLAN OF MERGER BY AND AMONG AMTECH SYSTEMS, INC., BTU MERGER SUB, INC., AND BTU INTERNATIONAL, INC. Dated as of October 21, 2014 TABLE OF CONTENTS Page ARTICLE I THE MERGER 2 Section 1.1 The Merger 2 Section 1.2 Closing 2 Section 1.3 Effective Time 2 Section 1.4 Effects of the Merger 3 Section 1.5 Bylaws 3 Section 1.6 Certificate of Incorporation

October 22, 2014 425

BTUI / Btu International Inc 425 - Merger Prospectus - 425

425 Filed by BTU International, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed under Rule 14a-12 of the Securities Exchange Act of 1934 Subject Company: BTU International, Inc. Commission File No.: 000-17297 Forward-Looking Statements Any statements in this communication about future expectations, plans and prospects for the Company, including statements about the expe

October 22, 2014 425

BTUI / Btu International Inc 425 - Merger Prospectus - 425

425 1 d809526d425.htm 425 Filed by BTU International, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed under Rule 14a-12 of the Securities Exchange Act of 1934 Subject Company: BTU International, Inc. Commission File No.: 000-17297 The following is the transcript of a joint conference call held by BTU and Amtech Systems, Inc. on October 22, 2014 in connection with the pr

October 22, 2014 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, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

8-K 1 d809128d8k.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): October 21, 2014 BTU International, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 000-17297 04-2781248 (State or Other Jurisdiction of In

October 22, 2014 EX-99.1

VOTING AND SUPPORT AGREEMENT

EX-99.1 Exhibit 99.1 Execution Version VOTING AND SUPPORT AGREEMENT This VOTING AND SUPPORT AGREEMENT, dated as of October 21, 2014 (this “Agreement”), is made and entered into by and among BTU International, Inc., a Delaware corporation (“BTU”), and the stockholders of Amtech Systems, Inc., an Arizona corporation (the “Company”), that are listed on Schedule A hereto (each a “Stockholder” and, col

October 22, 2014 EX-99.1

VOTING AND SUPPORT AGREEMENT

EX-99.1 Exhibit 99.1 Execution Version VOTING AND SUPPORT AGREEMENT This VOTING AND SUPPORT AGREEMENT, dated as of October 21, 2014 (this “Agreement”), is made and entered into by and among BTU International, Inc., a Delaware corporation (“BTU”), and the stockholders of Amtech Systems, Inc., an Arizona corporation (the “Company”), that are listed on Schedule A hereto (each a “Stockholder” and, col

October 22, 2014 EX-99.3

EMPLOYMENT AGREEMENT

EX-99.3 Exhibit 99.3 EMPLOYMENT AGREEMENT This Employment Agreement (the “Agreement”) is made by and between Amtech Systems, Inc. (the “Company”), an Arizona corporation, and Paul J. van der Wansem (the “Executive”), this 21st day of October, 2014. WHEREAS, pursuant to the Merger Agreement between Company and BTU International, Inc. (“Beta”) dated October 21, 2014 (the “Merger Agreement”), Beta wi

October 22, 2014 EX-99.2

VOTING AND SUPPORT AGREEMENT

EX-99.2 Exhibit 99.2 Execution Version VOTING AND SUPPORT AGREEMENT This VOTING AND SUPPORT AGREEMENT, dated as of October 21, 2014 (this “Agreement”), is made and entered into by and among Amtech Systems, Inc., an Arizona corporation (“Parent”) and the stockholders of BTU International, Inc., a Delaware corporation (the “Company”), that are listed on Schedule A hereto (each a “Stockholder” and, c

October 22, 2014 EX-3.2

Amended and Restated BTU International, Inc. Section 1. CERTIFICATE OF INCORPORATION AND BY-LAWS

EX-3.2 Exhibit 3.2 Amended and Restated By-Laws of BTU International, Inc. Section 1. CERTIFICATE OF INCORPORATION AND BY-LAWS 1.1. These by-laws are subject to the certificate of incorporation of the corporation. In these by-laws, references to the certificate of incorporation and by-laws mean the provisions of the certificate of incorporation and the by-laws as from time to time in effect. Secti

October 22, 2014 EX-2.1

AGREEMENT AND PLAN OF MERGER BY AND AMONG AMTECH SYSTEMS, INC., BTU MERGER SUB, INC., BTU INTERNATIONAL, INC. Dated as of October 21, 2014 TABLE OF CONTENTS Page ARTICLE I THE MERGER 2 Section 1.1 The Merger 2 Section 1.2 Closing 2 Section 1.3 Effect

EX-2.1 Exhibit 2.1 EXECUTION VERSION AGREEMENT AND PLAN OF MERGER BY AND AMONG AMTECH SYSTEMS, INC., BTU MERGER SUB, INC., AND BTU INTERNATIONAL, INC. Dated as of October 21, 2014 TABLE OF CONTENTS Page ARTICLE I THE MERGER 2 Section 1.1 The Merger 2 Section 1.2 Closing 2 Section 1.3 Effective Time 2 Section 1.4 Effects of the Merger 3 Section 1.5 Bylaws 3 Section 1.6 Certificate of Incorporation

August 12, 2014 10-Q

BTUI FORM 10-Q (Quarterly Report)

Form 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

July 29, 2014 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) July 29, 2014 BTU International, Inc. (Exact name of registrant as specified in its charter) DELAWARE 000-17297 04-2781248 (State or other jurisdiction of incorporation) (Commission Fi

July 29, 2014 EX-99

BTU International Reports Second Quarter 2014 Results

EXHIBIT 99.1 BTU International Reports Second Quarter 2014 Results NORTH BILLERICA, Mass., July 29, 2014 (GLOBE NEWSWIRE) - BTU International, Inc. (Nasdaq:BTUI), a leading supplier of advanced thermal processing equipment to the electronics manufacturing and alternative energy markets, today announced its financial results for the second quarter ended on June 29, 2014. Second quarter net sales we

June 19, 2014 EX-99.1

BTU International Raises Second Quarter Revenue Expectation

EX-99.1 Exhibit 99.1 FOR IMMEDIATE RELEASE BTU International Raises Second Quarter Revenue Expectation NORTH BILLERICA, Mass., June 17, 2014 — BTU International, Inc. (Nasdaq: BTUI), a leading supplier of advanced thermal processing equipment to the electronics manufacturing and alternative energy markets, today raised revenue guidance for the second quarter of 2014. Bookings during the quarter, p

June 19, 2014 8-K

Financial Statements and Exhibits, Other Events

Form 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): June 17, 2014 BTU International, Inc.

June 2, 2014 SD

- FORM SD

Form SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report BTU International, Inc. (Exact name of registrant as specified in its charter) Delaware 000-17297 04-2781248 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) 23 Esquire Road, N. Billerica, MA 01862 (Address of

June 2, 2014 EX-1.02

Conflict Minerals Report For The Year Ended December 31, 2013

EX-1.02 Exhibit 1.02 Conflict Minerals Report For The Year Ended December 31, 2013 This conflict minerals report is filed by BTU International, Inc. (the “Company”) for the year ended December 31, 2013 pursuant to Rule 13p-1 under the Securities Exchange Act of 1934 (the “Rule”). The Company designs, manufactures, sells and services thermal processing equipment and related process controls for use

May 22, 2014 8-K

- FORM 8-K

Form 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): May 16, 2014 BTU International, Inc.

May 9, 2014 10-Q

BTUI FORM 10-Q (Quarterly Report)

Form 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 29, 2014 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - FORM 8-K FILING DOCUMENT

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, 2014 BTU International, Inc. (Exact name of registrant as specified in its charter) DELAWARE 000-17297 04-2781248 (State or other jurisdiction of incorporation) (Commission F

April 29, 2014 EX-99

BTU International Reports First Quarter 2014 Results

EXHIBIT 99.1 BTU International Reports First Quarter 2014 Results NORTH BILLERICA, Mass., April 29, 2014 (GLOBE NEWSWIRE) - BTU International, Inc. (Nasdaq:BTUI), a leading supplier of advanced thermal processing equipment to the electronics manufacturing and alternative energy markets, today announced its financial results for the first quarter ended on March 30, 2014. First quarter net sales wer

April 14, 2014 DEF 14A

- DEFINITIVE PROXY STATEMENT

Definitive Proxy Statement UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (Rule 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x 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)) x Definitive Proxy Statement ¨ Definitive Additional Materials ¨ Soliciting Material Pursuant to §240.

February 27, 2014 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers - FORM 8-K

Form 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 24, 2014 BTU International, Inc. (Exact name of registrant as specified in its charter) DELAWARE 000-17297 04-2781248 (State or other jurisdiction of incorporation) (

February 25, 2014 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 document.htm FORM 8-K FILING DOCUMENT 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, 2014 BTU International, Inc. (Exact name of registrant as specified in its charter) DELAWARE 000-17297 04-2781248 (State or oth

February 25, 2014 EX-99

BTU International Reports Fourth Quarter and Fiscal Year 2013 Results

EXHIBIT 99.1 BTU International Reports Fourth Quarter and Fiscal Year 2013 Results NORTH BILLERICA, Mass., Feb. 25, 2014 (GLOBE NEWSWIRE) - BTU International, Inc. (Nasdaq:BTUI), a leading supplier of advanced thermal processing equipment to the electronics manufacturing and alternative energy markets, today announced its financial results for the fourth quarter and fiscal year ended on December 3

February 13, 2014 EX-99.I

to Schedule 13G

EX-99.I Exhibit I to Schedule 13G Ameriprise Financial, Inc., a Delaware Corporation, is a parent holding company. The classification and identity of the relevant subsidiaries is as follows: Investment Adviser – Columbia Management Investment Advisers, LLC is an investment adviser registered under section 203 of the Investment Advisers Act of 1940.

February 13, 2014 EX-99.II

to Schedule 13G Joint Filing Agreement

EX-99.II Exhibit II to Schedule 13G Joint Filing Agreement The undersigned persons agree and consent to the joint filing on their behalf of this Schedule 13G dated February 12, 2014 in connection with their beneficial ownership of BTU International, Inc. Columbia Management Investment Advisers, LLC authorizes Ameriprise Financial, Inc. to execute the Schedule 13G to which this Exhibit is attached

February 13, 2014 SC 13G/A

BTUI / Btu International Inc / AMERIPRISE FINANCIAL INC - SC 13G/A Passive Investment

SC 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Amendment #3 Under the Securities and Exchange Act of 1934 BTU International, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 056032105 (CUSIP Number) December 31, 2013 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedu

February 10, 2014 SC 13G/A

BTUI / Btu International Inc / PRICE T ROWE ASSOCIATES INC /MD/ - BTUI AS OF 12/31/2013 Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 8)* BTU INTERNATIONAL INC (Name of Issuer) COMMON STOCK (Title of Class of Securities) 056032105 (CUSIP Number) December 31, 2013 (Date of Event which Requires Filing of Statement) Check the appropriate box to designate the Rule pursuant to which this Schedu

January 21, 2014 SC 13G/A

BTUI / Btu International Inc / WANSEM PAUL J VAN DER - AMENDMENT NO.6 TO SCHEDULE 13G Passive Investment

Amendment No.6 to Schedule 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 6)* BTU INTERNATIONAL, INC. (Name of Issuer) Common Stock, $.01 par value per share (Title of Class of Securities) 056032105 (CUSIP Number) December 31, 2013 (Date of Event Which Requires Filing of this Statement) Check the app

October 29, 2013 EX-99

BTU International Reports Third Quarter 2013 Results

EXHIBIT 99.1 BTU International Reports Third Quarter 2013 Results NORTH BILLERICA, Mass., Oct. 29, 2013 (GLOBE NEWSWIRE) - BTU International, Inc. (Nasdaq:BTUI), a leading supplier of advanced thermal processing equipment to the electronics manufacturing and alternative energy markets, today announced its financial results for the third quarter ended on September 29, 2013. Third quarter net sales

October 29, 2013 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - FORM 8-K FILING DOCUMENT

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 29, 2013 BTU International, Inc. (Exact name of registrant as specified in its charter) DELAWARE 000-17297 04-2781248 (State or other jurisdiction of incorporation) (Commission

October 2, 2013 8-K

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant - FORM 8-K

Form 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 26, 2013 BTU International, Inc. (Exact name of registrant as specified in its charter) DELAWARE 000-17297 04-2781248 (State or other jurisdiction of incorporation)

October 2, 2013 EX-10.2

Salem Five Cents Savings Bank (hereinafter, with any subsequent holder, the “Bank”)

EX-10.2 Exhibit 10.2 This Second Amended and Restated Commercial Real Estate Promissory Note has been executed and delivered in accordance with (i) that certain Commitment Letter (the “Commitment Letter”) dated September 19, 2013 between the Borrower (as defined below) and the Bank (as defined below), and (ii) that certain Second Modification Agreement (the “Second Modification Agreement”) of even

October 2, 2013 EX-10.1

<The remainder of this page is intentionally left blank.>

EX-10.1 Exhibit 10.1 SALEM FIVE CENTS SAVINGS BANK SECOND MODIFICATION AGREEMENT This Modification Agreement (the “Modification Agreement”) is made as of the 26th day of September, 2013 by and among: Salem Five Cents Savings Bank, a Massachusetts bank with a principal office a 210 Essex Street, Salem, Massachusetts 01970 (the “Bank”); and BTU International, Inc., a Delaware corporation with a prin

July 30, 2013 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - FORM 8-K FILING DOCUMENT

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, 2013 BTU International, Inc. (Exact name of registrant as specified in its charter) DELAWARE 000-17297 04-2781248 (State or other jurisdiction of incorporation) (Commission Fi

July 30, 2013 EX-99

BTU International Reports Second Quarter 2013 Results

EXHIBIT 99.1 BTU International Reports Second Quarter 2013 Results NORTH BILLERICA, Mass., July 30, 2013 (GLOBE NEWSWIRE) - BTU International, Inc. (Nasdaq:BTUI), a leading supplier of advanced thermal processing equipment to the electronics manufacturing and alternative energy markets, today announced its financial results for the second quarter ended on June 30, 2013. Second quarter net sales we

May 29, 2013 8-K

- FORM 8-K

Form 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): May 24, 2013 BTU International, Inc.

April 30, 2013 EX-99

BTU International Reports First Quarter 2013 Results

EXHIBIT 99.1 BTU International Reports First Quarter 2013 Results NORTH BILLERICA, Mass., April 30, 2013 (GLOBE NEWSWIRE) - BTU International, Inc. (Nasdaq:BTUI), a leading supplier of advanced thermal processing equipment to the electronics manufacturing and alternative energy markets, today announced its financial results for the first quarter ended on March 31, 2013. First quarter net sales wer

April 30, 2013 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 30, 2013 BTU International, Inc. (Exact name of registrant as specified in its charter) DELAWARE 000-17297 04-2781248 (State or other jurisdiction of incorporation) (Commission F

April 18, 2013 DEF 14A

- DEFINITIVE PROXY STATEMENT

Definitive Proxy Statement United States Securities and Exchange Commission Washington, DC 20549 SCHEDULE 14A (Rule 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x 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)) x Definitive Proxy Statement ¨ Definitive Additional Materials ¨ Soliciting Material Pursuant to §240.

February 26, 2013 EX-99

BTU International Reports Fourth Quarter and Fiscal Year 2012 Results

EXHIBIT 99.1 BTU International Reports Fourth Quarter and Fiscal Year 2012 Results NORTH BILLERICA, Mass., Feb. 26, 2013 (GLOBE NEWSWIRE) - BTU International, Inc. (Nasdaq:BTUI), a leading supplier of advanced thermal processing equipment to the electronics manufacturing and alternative energy markets, today announced its financial results for the fourth quarter and fiscal year ended on December 3

February 26, 2013 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - FORM 8-K FILING DOCUMENT

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 26, 2013 BTU International, Inc. (Exact name of registrant as specified in its charter) DELAWARE 000-17297 04-2781248 (State or other jurisdiction of incorporation) (Commissio

February 13, 2013 EX-99.I

to Schedule 13G

EX-99.I Exhibit I to Schedule 13G Ameriprise Financial, Inc., a Delaware Corporation, is a parent holding company. The classification and identity of the relevant subsidiaries is as follows: Investment Adviser – Columbia Management Investment Advisers, LLC is an investment adviser registered under section 203 of the Investment Advisers Act of 1940.

February 13, 2013 SC 13G/A

BTUI / Btu International Inc / AMERIPRISE FINANCIAL INC - SC 13G/A Passive Investment

SC 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Amendment #2 Under the Securities and Exchange Act of 1934 BTU International, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 056032105 (CUSIP Number) December 31, 2012 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedu

February 13, 2013 EX-99.II

to Schedule 13G Joint Filing Agreement

EX-99.II Exhibit II to Schedule 13G Joint Filing Agreement The undersigned persons agree and consent to the joint filing on their behalf of this Schedule 13G dated February 12, 2013 in connection with their beneficial ownership of BTU International, Inc. Columbia Management Investment Advisers, LLC authorizes Ameriprise Financial, Inc. to execute the Schedule 13G to which this Exhibit is attached

February 8, 2013 SC 13G/A

BTUI / Btu International Inc / PRICE T ROWE ASSOCIATES INC /MD/ - BTUI AS OF 12/31/12 Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 7)* BTU INTERNATIONAL INC (Name of Issuer) COMMON STOCK (Title of Class of Securities) 056032105 (CUSIP Number) December 31, 2012 (Date of Event which Requires Filing of Statement) Check the appropriate box to designate the Rule pursuant to which this Schedu

January 25, 2013 SC 13G/A

BTUI / Btu International Inc / WANSEM PAUL J VAN DER - SCHEDULE 13G AMENDMENT NO. 5 Passive Investment

Schedule 13G Amendment No. 5 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5)* BTU INTERNATIONAL, INC. (Name of Issuer) Common Stock, $.01 par value per share (Title of Class of Securities) 056032105 (CUSIP Number) December 31, 2012 (Date of Event Which Requires Filing of this Statement) Check the appro

November 30, 2012 8-K

Current Report

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): November 26, 2012 BTU INTERNATIONAL, INC.

October 30, 2012 EX-99.1

BTU International Reports Third Quarter 2012 Results

Exhibit 99.1 BTU International Reports Third Quarter 2012 Results NORTH BILLERICA, Mass.-(BUSINESS WIRE)-October 30, 2012-BTU International, Inc. (Nasdaq: BTUI), a leading supplier of advanced thermal processing equipment to the alternative energy and electronics manufacturing markets, today announced its financial results for the third quarter ended on September 30, 2012. Third quarter net sales

October 30, 2012 8-K

Current Report

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) October 30, 2012 BTU INTERNATIONAL, INC.

August 9, 2012 S-3

- FORM S-3

FORM S-3 Table of Contents As filed with the Securities and Exchange Commission on August 9, 2012 Registration Statement No.

July 31, 2012 EX-99.1

BTU International Reports Second Quarter 2012 Results

Exhibit 99.1 BTU International Reports Second Quarter 2012 Results NORTH BILLERICA, Mass.-(BUSINESS WIRE)-July 31, 2012-BTU International, Inc. (Nasdaq: BTUI), a leading supplier of advanced thermal processing equipment to the alternative energy and electronics manufacturing markets, today announced its financial results for the second quarter ended on July 1, 2012. Second quarter net sales were $

July 31, 2012 8-K

Current Report

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 31, 2012 BTU INTERNATIONAL, INC.

May 30, 2012 8-K

Current Report

8-K 1 d361240d8k.htm FORM 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): May 25, 2012 BTU International, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 000-172

May 1, 2012 8-K

Current Report

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) May 1, 2012 BTU INTERNATIONAL, INC.

May 1, 2012 EX-99.1

BTU International Reports First Quarter 2012 Results

Exhibit 99.1 BTU International Reports First Quarter 2012 Results NORTH BILLERICA, Mass.-(BUSINESS WIRE)-May 1, 2012-BTU International, Inc. (Nasdaq: BTUI), a leading supplier of advanced thermal processing equipment to the alternative energy and electronics manufacturing markets, today announced its financial results for the first quarter ended on April 1, 2012. First quarter net sales were $16.3

April 16, 2012 DEF 14A

- DEFINITIVE NOTICE & PROXY STATEMENT

Definitive Notice & Proxy Statement United States Securities and Exchange Commission Washington, DC 20549 SCHEDULE 14A (Rule 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement x Definitive Proxy Statement ¨ Definitive Additional Materials ¨ Soliciting Material Pursuant to §240.

February 28, 2012 EX-99.1

BTU International Reports Fourth Quarter Sales and Fiscal Year 2011 Results

Exhibit 99.1 BTU International Reports Fourth Quarter Sales and Fiscal Year 2011 Results NORTH BILLERICA, Mass.-(BUSINESS WIRE)-February 28, 2012-BTU International, Inc. (Nasdaq: BTUI), a leading supplier of advanced thermal processing equipment to the alternative energy and electronics manufacturing markets, today announced its financial results for the fourth quarter and fiscal year ended on Dec

February 28, 2012 8-K

Current Report

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) February 28, 2012 BTU INTERNATIONAL, INC.

February 14, 2012 EX-99.(II)

to Schedule 13G Joint Filing Agreement

Joint Filing Agreement Exhibit II to Schedule 13G Joint Filing Agreement The undersigned persons agree and consent to the joint filing on their behalf of this Schedule 13G dated February 13, 2012 in connection with their beneficial ownership of BTU International, Inc.

February 14, 2012 SC 13G/A

BTUI / Btu International Inc / AMERIPRISE FINANCIAL INC - SCHEDULE 13G AMENDMENT NO. 1 Passive Investment

SC 13G/A 1 d298999dsc13ga.htm SCHEDULE 13G AMENDMENT NO. 1 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Amendment #1 Under the Securities and Exchange Act of 1934 BTU International, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 056032105 (CUSIP Number) December 31, 2011 (Date of Event Which Requires Filing of this Statement) Check the appropriate box t

February 14, 2012 EX-99.(I)

to Schedule 13G

Identification and Classification of the Subsidiary Exhibit I to Schedule 13G Ameriprise Financial, Inc., a Delaware Corporation, is a parent holding company. The classification and identity of the relevant subsidiaries is as follows: Investment Adviser – Columbia Management Investment Advisers, LLC is an investment adviser registered under section 203 of the Investment Advisers Act of 1940.

February 9, 2012 SC 13G/A

BTUI / Btu International Inc / PRICE T ROWE ASSOCIATES INC /MD/ - BTUI AS OF 12/31/11' Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 6)* BTU INTERNATIONAL INC (Name of Issuer) COMMON STOCK (Title of Class of Securities) 056032105 (CUSIP Number) December 31, 2011 (Date of Event which Requires Filing of Statement) Check the appropriate box to designate the Rule pursuant to which this Schedu

February 1, 2012 SC 13G/A

BTUI / Btu International Inc / WANSEM PAUL J VAN DER - AMENDMENT NO. 4 TO SCHEDULE 13G Passive Investment

Amendment No. 4 to Schedule 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4)* BTU INTERNATIONAL, INC. (Name of Issuer) Common Stock, $.01 par value per share (Title of Class of Securities) 056032105 (CUSIP Number) December 31, 2011 (Date of Event Which Requires Filing of this Statement) Check the ap

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