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Form 6-K Zentek Ltd. For: Jun 09

Tue, 09 Jun 2026 12:08:00 -0400

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Form 6-K Zentek Ltd. For: Jun 09

Tue, 09 Jun 2026 12:08:00 -0400

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Zentek receives US patent for ZenGUARD graphene air filter technology

Tue, 09 Jun 2026 11:13:13 -0400

Zentek Ltd. (TSXV: ZEN) (NASDAQ: ZTEK) announced that the United States Patent and Trademark Office issued U.S. Patent No. 12,616,206 covering the graphene-based technology for its ZenGUARD platform. The patent includes a 327-day extension to its term to compensate for examination delays.

The patent complements an existing Canadian patent covering personal protective equipment and heating, ventilation and air conditioning applications. ZenGUARD Enhanced Air Filters became available for sale in Canada on May 6, 2026.

The company is evaluating U.S. regulatory requirements, including EPA registration, while working with Quality Filters Inc., an air filter manufacturer based in Robertsdale, Alabama, for potential U.S. market

Zentek Granted U.S. Patent for ZenGUARD(TM) Graphene-Based Technology

Tue, 09 Jun 2026 11:11:00 -0400

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. - June 9, 2026) - Zentek Ltd. (TSXV: ZEN) (NASDAQ: ZTEK) ("Zentek" or the "Company") is pleased to announce that the United States Patent and Trademark Office has issued U.S. Patent No. 12,616,206 (the "Patent") covering the foundational graphene-based technology underlying the Company's ZenGUARD™ platform.

The Patent includes a 327-day extension to its enforceable term to compensate for examination delays. The Patent is owned by Zentek Ltd., with Dr. Seyyedarash Haddadi named as lead inventor alongside co-inventors. The

Zentek Granted U.S. Patent for ZenGUARD(TM) Graphene-Based Technology

Tue, 09 Jun 2026 11:11:00 -0400

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.

Form D Zentek Ltd.

Tue, 09 Jun 2026 11:10:00 -0400

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Form D Zentek Ltd.

Tue, 09 Jun 2026 11:10:00 -0400

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Form 6-K Zentek Ltd. For: May 27

Wed, 27 May 2026 11:38:00 -0400

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Form 6-K Zentek Ltd. For: May 27

Wed, 27 May 2026 11:38:00 -0400

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Zentek completes C$18 million private placement financing

Wed, 27 May 2026 09:11:59 -0400

Zentek Ltd. (NASDAQ: ZTEK) announced the completion of its private placement offering that raised gross proceeds of C$18 million. The company sold 18 million units at C$1.00 per unit, with Red Cloud Securities Inc. serving as sole agent and bookrunner.

Each unit consists of one common share and one warrant. The warrants allow holders to purchase additional common shares at C$1.50 until May 27, 2029.

The company plans to use the net proceeds for several purposes: developing the Albany Graphite Project including completion of a new Preliminary Economic Assessment by Micon International Limited, advancing preliminary feasibility study work, continuing commercialization of its

Zentek Announces Closing of Fully Subscribed Brokered LIFE Offering for Gross Proceeds of C$18 Million

Wed, 27 May 2026 09:09:00 -0400

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. Pursuant to the Offering, the Company sold 18,000,000 units of the Company (the "Units") at a price of C$1.00 per Unit (the "Offering Price"). Red Cloud Securities Inc. ("Red Cloud") acted as sole agent and bookrunner in connection with the Offering.

"Closing this financing reflects confidence in the value-creation path we have

Zentek Announces Closing of Fully Subscribed Brokered LIFE Offering for Gross Proceeds of C$18 Million

Wed, 27 May 2026 09:09:00 -0400

"Closing this financing reflects confidence in the value-creation path we have

Zentek raises C$15 million in oversubscribed private placement

Tue, 19 May 2026 07:32:31 -0400

Zentek Ltd. (NASDAQ: ZTEK) announced its private placement offering raised the maximum C$15 million and was oversubscribed. The company sold 15 million units at C$1.00 per unit through Red Cloud Securities Inc., which served as sole agent and bookrunner.

Each unit consists of one common share and one warrant. The warrants allow holders to purchase additional shares at C$1.50 each within 36 months of closing. Red Cloud received an option to sell up to 3 million additional units for extra proceeds of C$3 million.

"The level of interest in this Offering reflects the institutional confidence in the value-creation path we have built

Zentek raises C$15 million in oversubscribed private placement

Tue, 19 May 2026 07:32:31 -0400

"The level of interest in this Offering reflects the institutional confidence in the value-creation path we have built

Zentek Announces That Its Brokered LIFE Offering Is Oversubscribed and Fully Allocated

Tue, 19 May 2026 07:30:00 -0400

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. Pursuant to the Marketed Offering, the Company intends to raise gross proceeds of up to C$15,000,000 from the sale of up to 15,000,000 units of the Company (each, a "Unit") at a price of C$1.00

Zentek Announces That Its Brokered LIFE Offering Is Oversubscribed and Fully Allocated

Tue, 19 May 2026 07:30:00 -0400

THIS NEWS RELEASE IS NOT FOR DISTRIBUTION TO U.S. NEWSWIRE SERVICES OR FOR DISSEMINATION IN THE UNITED STATES

Zentek announces private placement to raise up to C$18 million

Thu, 14 May 2026 16:33:22 -0400

Zentek Ltd. (NASDAQ: ZTEK) announced a brokered private placement offering to raise gross proceeds of up to C$15 million through the sale of up to 15 million units at C$1.00 per unit.

Red Cloud Securities Inc. will act as sole agent and bookrunner for the marketed offering on a best efforts basis. Each unit consists of one common share and one warrant, with each warrant allowing the purchase of one additional common share at C$1.50 within 36 months of closing.

The company granted Red Cloud an option to sell up to an additional 3 million units for additional gross proceeds of up

Zentek announces private placement to raise up to C$18 million

Thu, 14 May 2026 16:33:22 -0400

Zentek Ltd. (NASDAQ: ZTEK) announced a brokered private placement offering to raise gross proceeds of up to C$15 million through the sale of up to 15 million units at C$1.00 per unit.

The company granted Red Cloud an option to sell up to an additional 3 million units for additional gross proceeds of up

Zentek Announces Brokered LIFE Offering for Gross Proceeds of up to C$15 Million

Thu, 14 May 2026 16:30:00 -0400

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").

Each Unit will consist of one common share of the Company (each, a "Common

Zentek Announces Brokered LIFE Offering for Gross Proceeds of up to C$15 Million

Thu, 14 May 2026 16:30:00 -0400

Each Unit will consist of one common share of the Company (each, a "Common

Form 6-K Zentek Ltd. For: May 13

Wed, 13 May 2026 09:50:00 -0400

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Form 6-K Zentek Ltd. For: May 13

Wed, 13 May 2026 09:50:00 -0400

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Zentek's ZenGUARD(TM) Enhanced Air Filters Now Available for Direct Procurement by All Federal Departments and Agencies

Wed, 13 May 2026 07:35:00 -0400

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. This step establishes Zentek as an exclusive supplier within the PTC framework of this type of innovation to the Government of Canada, administered through ISC, for a three-year period, during which any federal department or

Zentek's ZenGUARD(TM) Enhanced Air Filters Now Available for Direct Procurement by All Federal Departments and Agencies

Wed, 13 May 2026 07:35:00 -0400

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

Form 6-K Zentek Ltd. For: May 06

Wed, 06 May 2026 13:21:00 -0400

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