Amtech dismisses auditor MHM, appoints Grant Thornton; reinstates shareholder special meeting right

AMTECH SYSTEMS INC

Dismissed Mayer Hoffman McCann P.C. as auditor effective Nov 17, 2021; no disagreements in prior two fiscal years.
Appointed Grant Thornton LLP as independent auditor for FY ending Sep 30, 2022, effective Nov 19.
Board reinstated shareholder right to call special meeting; threshold lowered to 35% of voting shares.

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