On January 13, 2023, the Board of Directors of Amtech Systems, Inc. appointed Michael M. Ludwig to the Board, effective December 31, 2022, to fill the vacancy created by Mr. Whang's retirement. Mr. Ludwig has extensive financial management experience, managing fast-pace, leading-edge technology companies in rapid growth environments. Most recently, Mr. Ludwig served as the Senior Vice President, Finance and Chief Financial Officer of Rogers Corporation, a company that designs, develops, manufactures, and sells high-performance engineered materials for the automotive and electronics industries.

Prior to his tenure at Rogers, Mr. Ludwig worked at FormFactor, Inc. where he served as Vice President of Finance from 2001 to 2007, and then served as Senior Vice President of Finance and Chief Financial Officer from 2009 to 2018. At FormFactor, he was a major contributor to increasing revenue from $169 million to $548 million and executing two major acquisitions. Mr. Ludwig also served as the Vice President of Finance at Force 10 Networks, Inc. from 2007 to 2008.

Prior to working for FormFactor, Mr. Ludwig worked for Elo TouchSystems, Inc. (Tyco Electronics) from 1999 to 2001 as Controller, and then as Vice President of Systems and Services. Mr. Ludwig also has experience at Beckman Coulter, Inc. and Ernst & Young. The Board believes Mr. Ludwig's extensive experience in finance qualify him to serve as a director of the Board.