ZTEK

ZEN-EMI-01 is developed from Albany graphite and preliminary laboratory testing showed that it dissipates electromagnetic energy within the coating rather than reflecting it toward adjacent systems Guelph, Ontario--(Newsfile Corp. - August 17, 2026) - Zentek Ltd.  (TSXV: ZEN) (NASDAQ: ZTEK) ("Zentek" or the "Company") has filed a provisional patent application with the United States Patent and Trademark Office covering ZEN-EMI-01, a water-based electromagnetic interference ("EMI") shielding coating produced from purified graphite from the Company's Albany deposit.

Initial capital of US$817 million, after-tax payback of 4.4 years and a 30-year mine life, for the nuclear, defence and allied-nation supply chains the Project targets. Guelph, Ontario--(Newsfile Corp. - August 10, 2026) - Zentek Ltd.

Independent Montreal-based investor relations firm to increase Zentek's visibility with qualified investment professionals Guelph, Ontario--(Newsfile Corp. - July 20, 2026) - Zentek Ltd. (TSXV: ZEN) (NASDAQ: ZTEK) ("Zentek" or the "Company") is pleased to announce that it has engaged IMPAQ Capital Inc. ("IMPAQ"), an independent, arm's-length service provider, to deliver investor relations services.

Company-sponsored research coverage to broaden Zentek's visibility with the global investment community Guelph, Ontario--(Newsfile Corp. - July 15, 2026) - Zentek Ltd. (TSXV: ZEN) (NASDAQ: ZTEK) ("Zentek" or the "Company") is pleased to announce that it has engaged Atrium Research Corporation ("Atrium"), a company-sponsored research firm, to provide research coverage of the Company.

Guelph, Ontario--(Newsfile Corp. - July 7, 2026) - Zentek Ltd. (TSXV: ZEN) (NASDAQ: ZTEK) ("Zentek" or the "Company") is pleased to announce that Quality Filters Inc. ("Quality"), its U.S.-based manufacturing and distribution partner headquartered in Robertsdale, Alabama, has successfully completed a validation and qualification program for ZenGUARD™ Enhanced Air Filtration Media and has subsequently placed its first commercial order for 244 rolls to support production of multiple sizes of heating, ventilation and air conditioning ("HVAC") air filters.

Zentek targets the U.S. indoor air quality and air filtration market with a differentiated filtration solution Guelph, Ontario--(Newsfile Corp. - June 29, 2026) - Zentek Ltd. (NASDAQ: ZTEK) (TSXV: ZEN) ("Zentek" or the "Company") announces it has secured a pathway to sell ZenGUARD™ Enhanced Air Filtration Media in the United States (“U.S.”), advancing the Company's commercialization strategy in the U.S. Zentek has entered into an agreement dated June 26, 2026 (the "Agreement") with Applied Silver Inc. ("Applied Silver") granting Zentek an exclusive (subject to certain volume thresholds) license to incorporate Applied Silver's EPA-registered silver technology into indoor air quality and air filtration products in the U.S. The license spans HVAC, cabin air, cleanroom and healthcare systems, commercial, institutional, residential, and industrial building filtration, transportation and fleet cabin air applications, and other compatible HVAC and cabin air applications.

New U.S. joint venture Strategic Graphite Partners LLC to advance allied-sourced Albany ultra-high-purity graphite for U.S. energy, defense, and national-security markets. Guelph, Ontario--(Newsfile Corp. - June 26, 2026) - Zentek Ltd.

U.S. Patent No. 12,616,206 granted to Zentek with 327-day term extension; complements issued Canadian patent covering ZenGUARD(TM) in HVAC and PPE applications.

Guelph, Ontario--(Newsfile Corp. - May 27, 2026) - Zentek Ltd. (TSXV: ZEN) (NASDAQ: ZTEK) ("Zentek" or the "Company") is pleased to announce the closing of its previously announced "best efforts" private placement (the "Offering") for gross proceeds of C$18,000,000, which includes the exercise in full of the agent's option.

THIS NEWS RELEASE IS NOT FOR DISTRIBUTION TO U.S. NEWSWIRE SERVICES OR FOR DISSEMINATION IN THE UNITED STATES Guelph, Ontario--(Newsfile Corp. - May 19, 2026) - Zentek Ltd. (TSXV: ZEN) (NASDAQ: ZTEK) ("Zentek" or the "Company") today announced that, further to its news release dated May 14, 2026, its previously announced "best efforts" marketed private placement (the "Marketed Offering") is oversubscribed and fully allocated.