On January 28, 2020, Amtech Systems, Inc. announced the promotion of Mr. Michael Whang to Chief Executive Officer, effective immediately. The company also announced the retirement of Mr. Robert Hass, 70, Executive Vice President, effective February 17, 2020. Mr. J.S. Whang, the Company's former Chief Executive Officer, will continue in his capacity as Executive Chairman.

Mr. Michael Whang, 48, joined the Company in April 2004 as Director of Information Technology and Risk Management. In May 2016, Michael Whang was promoted to Chief Risk Officer and Chief Information Officer. He was promoted to Vice President of Operations on January 4, 2018 and to Vice President and Chief Operating Officer on March 6, 2019.

He was promoted to Chief Executive Officer on January 28, 2020. His responsibilities at Amtech included roles in corporate strategy and operations, compliance, and M&A due diligence and post-acquisition activity, culminating in operational oversight of the USA Operations. Prior to joining Amtech, Michael Whang served in various information technology management roles at several technology companies.

Michael Whang is the son of Jong S. Whang, Amtech's founder and Executive Chairman.