Mr. Ryan Shacklock reports

ZENTEK ANNOUNCES CHANGES TO BOARD OF DIRECTORS AND CHANGES TO BOARD NOMINATIONS FOR UPCOMING ANNUAL AND SPECIAL MEETING OF SHAREHOLDERS

Ilse Treurnicht has resigned from Zentek Ltd.'s board of directors, effective immediately. Ms. Treurnicht has agreed to serve on the Zentek advisory board and continue to support the company.

"Ilse has been an integral part of the board of directors for the past few years as we strived to build up the capabilities and governance of the board," said chair of the board of directors, Eric Wallman.

The board of directors has appointed John Snisarenko as the secretary of the company and as chair of the company's corporate governance, compensation and nominating committee, positions that were previously held by Ms. Treurnicht.

In addition, Lisa Sim has decided not to stand for election as a director at the coming annual and special meeting of shareholders of the company. After such meeting, Ms. Sim will be appointed to the Zentek advisory board where she will continue to manage and advise on the company's intellectual property portfolio.

Several strong nomination candidates have been brought forward by shareholders of the company, and the board of directors is in the final stages of reviewing and selecting from those candidates.

These changes will result in the company amending and remailing the proxy voting information for the annual and special meeting being held on Sept. 25, 2025.

A separate news release will detail the updated nominees as well as provide instructions for voting.

About Zentek Ltd.

Zentek is an ISO 13485:2016 certified intellectual property technology company focused on the research, development and commercialization of novel products seeking to give the company's commercial partners a competitive advantage by making their products better, safer and greener.

Zentek's patented technology platform ZenGuard is shown to have enhanced viral filtration efficiency for surgical masks and HVAC (heating, ventilation and air conditioning) systems. Zentek's ZenGuard production facility is in Guelph, Ont.

Zentek has a global exclusive licence to the Aptamer-based platform technology developed by McMaster University, which is being jointly developed by Zentek and McMaster for both the diagnostic and therapeutic markets.

We seek Safe Harbor.