Vancouver, BC, June 4, 2018 – Photon Control Inc. (“Photon Control” or the “Company”) (TSX: PHO), a leading developer and supplier of optical measurement technologies to the global semiconductor industry, is pleased to announce that the Company opened the market earlier this morning on Toronto Stock Exchange (“TSX”).

In celebration of last month’s approval for the listing of Photon Control’s common shares on TSX, and the subsequent commencement of trading on TSX main board on Friday, May 25th , 2018 President and CEO Scott Edmonds, opened trading this morning, accompanied by the Company’s senior leadership team and the Company’s Directors.

“Graduating to TSX main board – Canada’s premier exchange – is a historic milestone for our Company and our shareholders,” said Mr. Edmonds. “The main board listing creates opportunities for Photon Control to capture interest from a larger pool of institutional investors both domestically and internationally who were previously unable to invest in a Venture listed issuer. I was delighted to celebrate the event by opening the market this morning, surrounded by my terrific senior leadership team and directors.”

About Photon Control Inc.

Photon Control Inc. designs, manufactures and distributes a wide range of optical sensors and systems to measure temperature and position. These products are used by the world’s largest wafer fabrication equipment manufacturers and end users in the semiconductor and solid-state industries. Photon Control Inc.’s high quality products provide industry leading accuracy, speed and quality in the most extreme conditions and are backed by a team of experts providing a variety of on-site and remote services including custom design, installation, training and support. Headquartered in an ISO 9001:2015 manufacturing facility in Vancouver, BC, Photon Control Inc. is listed on TSX, trading under the symbol ‘’PHO.” Additional information about the company can be found at www.photon-control.com/investors.html.

Investor Relations Contact: Ir@photon-control.com

News Release 11-18