ZTEK

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.

Guelph, Ontario--(Newsfile Corp. - May 14, 2026) - Zentek Ltd. (TSXV: ZEN) (NASDAQ: ZTEK) ("Zentek" or the "Company") today announced that it has entered into an engagement agreement with Red Cloud Securities Inc. ("Red Cloud") to act as sole agent and bookrunner on a "best efforts" basis in connection with a marketed private placement (the "Marketed Offering") for gross proceeds of up to C$15,000,000 from the sale of up to 15,000,000 units of the Company (the "Units") at a price of C$1.00 per Unit (the "Offering Price").

Culmination of multi-year Innovative Solutions Canada and National Research Council collaboration establishes Zentek as an exclusive supplier of this type of innovation to the Government of Canada Guelph, Ontario--(Newsfile Corp. - May 13, 2026) - Zentek Ltd. (TSXV: ZEN) (NASDAQ: ZTEK) ("Zentek" or the "Company") is pleased to announce that Innovative Solutions Canada ("ISC") has added ZenGUARD™ Enhanced Air Filters to its Pathway to Commercialization ("PTC") source list.

ZenGUARD(TM) Enhanced Air Filters leverage patented graphene-enhanced media tested in accordance with ASHRAE Standard 52.2, engineered to enhance filtration without increased pressure drop, energy consumption and carbon emissions Guelph, Ontario--(Newsfile Corp. - May 6, 2026) - Further to its press release dated February 17, 2026, Zentek Ltd. (TSXV: ZEN) (NASDAQ: ZTEK) ("Zentek" or the "Company") is pleased to announce that it has received a revised classification by Health Canada's Pesticides Regulatory Directorate ("PRD") that ZenGUARD™ Enhanced Air Filters are not subject to regulation under the Pest Control Products Act.

Program builds on prior site data and extends Zentek's active partnership with Constance Lake First Nation as Albany advances toward the Preliminary Economic Assessment targeted for completion in Summer 2026 Guelph, Ontario--(Newsfile Corp. - April 28, 2026) - Zentek Ltd. (TSXV: ZEN) (NASDAQ: ZTEK) ("Zentek" or the "Company") today announced that its wholly-owned subsidiary Albany Graphite Corp. ("AGC") has engaged ERM Consultants Canada Ltd.