AMTECH SYSTEMS INC | Business Contracts

Description of Capital Stock (Filed With SEC on November 30, 2022)

Jong S. Whang Separation Agreement (Filed With SEC on November 30, 2022)

Purchase and Sale Agreement dated April 15, 2022, between BTU International, Inc. and Rhino Capital Advisors LLC (Filed With SEC on August 15, 2022)

First Amendment to Purchase Agreement dated June 22, 2022, between BTU International, Inc. and MCP III 23 Esquire LLC (Filed With SEC on August 15, 2022)

Description of Capital Stock (Filed With SEC on November 17, 2021)

Description of Capital Stock (Filed With SEC on November 19, 2020)

Description of Capital Stock (Filed With SEC on November 21, 2019)

Letter Agreement between Amtech Systems, Inc. and Fokko Pentinga dated December 28, 2018 (Filed With SEC on February 7, 2019)

Separation Agreement and General Release of All Claims between Amtech Systems, Inc. and Fokko Pentinga dated November 28, 2018 (Filed With SEC on February 7, 2019)

AMTECH SYSTEMS, INC. UNDERWRITING AGREEMENT 1,055,000 Shares of Common Stock (Filed With SEC on August 18, 2017)

/s/ Fokko Pentinga (Filed With SEC on November 16, 2016)

CHANGE OF CONTROL AND SEVERANCE AGREEMENT (Filed With SEC on November 16, 2016)

FIFTH AMENDMENT TO EMPLOYMENT AGREEMENT (Filed With SEC on November 16, 2016)

AMENDMENT TO EMPLOYMENT AGREEMENT (Filed With SEC on May 5, 2016)

FIFTH AMENDMENT TO EMPLOYMENT AGREEMENT (Filed With SEC on November 19, 2015)

Kingstone Technology Hong Kong Limited (Existing Shareholder) vs Suzhou Zhuo Jing Investment Center (LP) (New Shareholder) regarding Shanghai Kingstone Semiconductor Company, Ltd.... (Filed With SEC on August 6, 2015)

FOURTH AMENDMENT TO EMPLOYMENT AGREEMENT (Filed With SEC on April 10, 2015)

2007 EMPLOYEE STOCK INCENTIVE PLAN OF AMTECH SYSTEMS, INC. As Amended Effective April 9, 2015 (Filed With SEC on April 10, 2015)

EMPLOYMENT AGREEMENT (Filed With SEC on April 10, 2015)

FOURTH AMENDMENT TO EMPLOYMENT AGREEMENT (Filed With SEC on April 10, 2015)

CONSULTING AGREEMENT (Filed With SEC on February 2, 2015)

EMPLOYMENT AGREEMENT (Filed With SEC on February 2, 2015)

AGREEMENT ANDPLAN 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 (Filed With SEC on October 23, 2014)

2007 EMPLOYEE STOCK INCENTIVE PLAN OF AMTECH SYSTEMS, INC. As Amended Effective May 8, 2014 (Filed With SEC on May 14, 2014)

AMTECH SYSTEMS, INC. NON-EMPLOYEE DIRECTORS STOCK OPTION PLAN AS AMENDED EFFECTIVE MAY 8, 2014 Purposes of the Plan (Filed With SEC on May 14, 2014)

SECOND AMENDMENT TO EMPLOYMENT AGREEMENT (Filed With SEC on August 8, 2013)

AMENDMENT TO CHANGE OF CONTROL SEVERANCE AGREEMENT (Filed With SEC on August 8, 2013)

CHANGE OF CONTROL SEVERANCE AGREEMENT (Filed With SEC on December 3, 2012)

CHANGE OF CONTROL SEVERANCE AGREEMENT (Filed With SEC on November 30, 2012)

AMENDMENT TO EMPLOYMENT AGREEMENT (Filed With SEC on August 9, 2012)

EMPLOYMENT AGREEMENT (Filed With SEC on July 6, 2012)

SECOND AMENDED AND RESTATED EMPLOYMENT AGREEMENT (Filed With SEC on February 9, 2012)

AMENDMENT TO STOCK PURCHASE AND SALE AGREEMENT (Filed With SEC on November 17, 2011)

Exhibit 2.1 STOCK PURCHASE AND SALE AGREEMENT By and Among AMTECH SYSTEMS, INC., SILICON JADE LIMITED, KINGSTONE TECHNOLOGY HONG KONG LIMITED and THE SHAREHOLDERS OF SILICON JADE... (Filed With SEC on May 10, 2011)

CHANGE OF CONTROL AND SEVERANCE AGREEMENT (Filed With SEC on April 26, 2011)

AMTECH SYSTEMS, INC. NON-EMPLOYEE DIRECTORSSTOCK OPTION PLAN AS AMENDED EFFECTIVE JULY 8, 2005 AND AS FURTHER AMENDEDEFFECTIVE MARCH 11, 2010 Purposes of the Plan (Filed With SEC on March 17, 2010)

2007 EMPLOYEE STOCK INCENTIVEPLAN OF AMTECH SYSTEMS, INC. As Amended Effective March 11,2010 (Filed With SEC on March 17, 2010)

AMENDED AND RESTATED EMPLOYMENT AGREEMENT (Filed With SEC on March 17, 2010)

AMENDED AND RESTATED CHANGE OF CONTROL AND SEVERANCE AGREEMENT (Filed With SEC on March 17, 2010)

AMENDED AND RESTATED RIGHTSAGREEMENT AMTECH SYSTEMS, INC. and COMPUTERSHARE TRUST COMPANY, N.A. Rights Agent Dated as of December 15, 2008 (Filed With SEC on December 15, 2008)

Amtech Systems, Inc. 2,000,000 Shares * Common Stock ($0.01 par value) Underwriting Agreement (Filed With SEC on November 7, 2007)

EMPLOYMENT AGREEMENT (Filed With SEC on May 15, 2007)

AMTECH SYSTEMS, INC. an Arizona corporation [2,200,000] Shares * Common Stock ($0.01 par value) Underwriting Agreement (Filed With SEC on January 30, 2007)

Specimen form of certificate representing Common Stock of Amtech Systems, Inc. (Filed With SEC on December 21, 2006)

AMTECH SYSTEMS, INC. AND ITS SUBSIDIARIES THIRD AMENDMENT TO LEASE THIRD AMENDMENT TO LEASE (Filed With SEC on August 14, 2006)

LOAN AND SECURITY AGREEMENT (DOMESTIC) (Filed With SEC on April 12, 2006)

LOAN AND SECURITY AGREEMENT (EXIM) (Filed With SEC on April 12, 2006)

EXPORT-IMPORT BANK OF THE UNITED STATES WORKING CAPITAL GUARANTEE PROGRAM BORROWER AGREEMENT (Filed With SEC on April 12, 2006)

AMTECH SYSTEMS, INC. PLACEMENT AGENT WARRANT TO PURCHASE COMMON STOCK (Filed With SEC on December 29, 2005)

AMENDMENT TO THE NON-EMPLOYEE DIRECTORS STOCK OPTION PLAN OF AMTECH SYSTEMS, INC. (Filed With SEC on December 29, 2005)

AMTECH SYSTEMS, INC. ACCREDITED INVESTOR SUBSCRIPTION AGREEMENT (Filed With SEC on April 28, 2005)

ASSET PURCHASE AGREEMENT (Filed With SEC on July 15, 2004)

AGREEMENT (Filed With SEC on July 15, 2004)

ASSET PURCHASE AGREEMENT (Filed With SEC on July 15, 2004)

AGREEMENT (Filed With SEC on July 15, 2004)

KEY MAN SEVERANCE AGREEMENT (Filed With SEC on February 17, 2004)

AMTECH SYSTEMS INC (59)