POET Technologies Inc. (the “Company”)

120 Eglinton Avenue East, Suite 1107

Toronto, Ontario

M4P 1E2

On October 26, 2025, the Company entered into securities purchase agreements with institutional investors for the purchase and sale of 20,689,655 Common Shares at a price of US$7.25 per Common Share for aggregate gross proceeds to the Company of US$149,999,998.75. The Offering closed on October 28, 2025.

Titan Partners Group, a division of American Capital Partners (“Titan”), acted as the sole placement agent for the Offering.

The Company intends to use the net proceeds from the Offering for corporate development, including targeted acquisitions, scaling up of R&D, acceleration of the light source business, expanding operations, and general working capital.

The Offering was made in the United States only pursuant to a shelf registration statement on Form F-10 (File No. 333-280553) previously filed with the U.S. Securities and Exchange Commission (the “SEC”) and declared effective on September 10, 2024. The Offering was made only by means of a prospectus supplement, which was filed with the SEC and is available on the SEC’s website located at www.sec.gov. The Company also filed the prospectus supplement with the applicable securities regulatory authorities in Canada.

For further information, please contact:

Kevin Barnes

Vice President of Finance & Administration, Corporate Controller and Treasurer

POET Technologies Inc.

Telephone: (416) 368-411

Email: kb@poet.tech