Press Release: Photon Control : Photon Control Announces the Mailing of its Management Information Circular in Connection with its Annual and Special Meeting to Approve Acquisition by MKS Instruments

VANCOUVER, British Columbia, June 01, 2021 (GLOBE NEWSWIRE) -- Photon Control Inc. ("Photon Control" or the "Company") (TSX: PHO), a leading developer and supplier of optical measurement technologies and systems, is pleased to announce it has mailed and filed a management information circular and related meeting materials (the "Meeting Materials") for its annual general meeting of shareholders and special meeting (the "Meeting") of Securityholders (as defined below) to be held June 29, 2021, in connection with, among other things, the proposed acquisition of the Company by MKS Instruments, Inc. ("MKS") announced on May 10, 2021 (the "Transaction").