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Zentek (NASDAQ: ZTEK) gains exclusive potential supplier status with Canada

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Form Type
6-K

Rhea-AI Filing Summary

Zentek Ltd. (ZTEK) reports a Government of Canada standing offer to supply HVAC filtration products, including ZenGUARD™ Enhanced Air Filters, to federal facilities in the National Capital Region. The agreement, awarded via open bidding, runs from August 19, 2026, to August 18, 2027 with a maximum published value of CAD $348,666.84.

ZenGUARD™ Enhanced Air Filters use patented graphene technology and, in National Research Council of Canada testing, achieved an approximately fivefold improvement in aerosol filtration efficiency over untreated filters with no increase in pressure drop or energy consumption. A three-month school pilot reported 22% lower fan energy and longer projected service life versus standard MERV 13 filters.

In May 2026, Innovative Solutions Canada added ZenGUARD™ Enhanced Air Filters to its Pathway to Commercialization source list, establishing Zentek as an exclusive potential supplier to the Government of Canada for three years. Federal departments may purchase directly without a competitive procurement process, though no minimum orders are guaranteed.

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Filing Explained

The standing offer was awarded through competitive open bidding and sets pre-arranged pricing and terms for federal call-ups as requirements arise; its CAD $348,666.84 maximum describes available purchasing capacity rather than a committed order amount.

Standing offer maximum value CAD $348,666.84 Maximum published value for Government of Canada HVAC filtration standing offer
Standing offer term start August 19, 2026 Start date of Government of Canada standing offer
Standing offer term end August 18, 2027 End date of Government of Canada standing offer
Aerosol filtration improvement Approximately fivefold Improvement in aerosol filtration efficiency vs untreated filter in NRC classroom testing
Fan energy reduction 22% Lower fan energy during three-month school pilot vs standard MERV 13 filters
PTC exclusivity period Three years Duration Zentek is an exclusive potential supplier under Pathway to Commercialization
Operational waste diversion target 75 percent Federal target for diverting operational waste from landfills by 2030
standing offer regulatory
"awarded a Government of Canada standing offer to supply a range of HVAC"
Standing offer is a pre-arranged agreement in which a buyer (often a government or large organization) and a supplier agree on prices, delivery terms, and conditions for goods or services to be supplied over a set period, while actual orders are placed later as needs arise and no specific quantity is guaranteed. For investors, it signals an approved, on-call sales channel and potential recurring work—like a store keeping a vendor on speed dial to restock—providing visibility into future demand without promising firm revenue.
Pathway to Commercialization regulatory
"added ZenGUARD™ Enhanced Air Filters to its Pathway to Commercialization source list"
ZenGUARD™ Enhanced Air Filters technical
"ZenGUARD™ Enhanced Air Filters use patented graphene technology to improve indoor"
Greening Government Strategy regulatory
"aligned with the Greening Government Strategy's Scope 2 emissions and waste"
pressure drop technical
"improvement in aerosol filtration efficiency over an untreated filter, with no increase in pressure drop"

FAQ

What government contract did Zentek Ltd. (ZTEK) announce on this Form 6-K?
Zentek announced a Government of Canada standing offer to supply HVAC filtration products, including ZenGUARD™ Enhanced Air Filters, to federal facilities in the National Capital Region. The agreement was awarded through an open bidding process and sets pre-arranged pricing and terms for departmental call-ups.

What is the value and term of Zentek (ZTEK)’s new standing offer with the Government of Canada?
The standing offer has a maximum published value of CAD $348,666.84 and runs from August 19, 2026, to August 18, 2027. Federal departments can issue call-ups under this framework as requirements arise during the contract period.

How do ZenGUARD™ Enhanced Air Filters from Zentek (ZTEK) perform versus standard filters?
National Research Council of Canada testing showed ZenGUARD™ Enhanced Air Filters delivered an approximately fivefold improvement in aerosol filtration efficiency over untreated filters, with no increase in pressure drop or energy consumption. A three-month school pilot also reported 22% lower fan energy versus standard MERV 13 filters.

What is the Pathway to Commercialization status for Zentek (ZTEK)’s ZenGUARD™ Enhanced Air Filters?
In May 2026, Innovative Solutions Canada added ZenGUARD™ Enhanced Air Filters to its Pathway to Commercialization source list, making Zentek an exclusive potential supplier to the Government of Canada for three years. Departments can buy directly without competitive procurement, but no purchase volumes are guaranteed.

How does Zentek (ZTEK)’s ZenGUARD™ technology support Canadian government sustainability goals?
ZenGUARD™ Enhanced Air Filters are designed to lower HVAC energy use, extend service intervals, and reduce landfill waste. These outcomes align with the Government of Canada’s Greening Government Strategy goals, including diverting at least 75 percent of operational waste from landfills by 2030.

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Form 6-K: How Foreign Companies Report to the SEC →

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16
UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of August 2026

Commission File Number: 001-41310

ZENTEK LTD.
(Translation of registrant's name into English)

1123 York Road
Guelph, Ontario N1E 6Z1 Canada
(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☐      Form 40-F ☒

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

  ZENTEK LTD.
  (Registrant)
   
Date: August 20, 2026 By /s/ Wendy Ford
    Wendy Ford
    Chief Financial Officer

EXHIBIT INDEX

Exhibit   Description
   
99.1   News Release dated August 20, 2026

 

Zentek Awarded Government of Canada Standing Offer for HVAC Filters

Zentek to supply HVAC filters to federal facilities in the National Capital Region as ZenGUARD™ Enhanced Air Filters remain available to all federal departments through the Pathway to Commercialization source list

Guelph, ON - August 20, 2026 - Zentek Ltd. ("Zentek" or the "Company") (TSXV: ZEN) (NASDAQ: ZTEK) announces that it has been awarded a Government of Canada standing offer to supply a range of HVAC filtration products, including ZenGUARD™ Enhanced Air Filters, to federal facilities in the National Capital Region. Awarded through a competitive open-bidding process, the standing offer establishes pre-arranged pricing and terms under which federal departments may issue call-ups as requirements arise, runs from August 19, 2026, to August 18, 2027, and carries a maximum published value of CAD $348,666.84.

Management Commentary

"This standing offer expands Zentek's ability to serve the Government of Canada and reflects our commitment to being a reliable indoor air quality partner," said Moe Jiwan, Chief Executive Officer of Zentek. "Federal departments can now source our filtration products through this standing offer, while ZenGUARD™ Enhanced Air Filters remain available government-wide through the Pathway to Commercialization source list. Compared with denser filters commonly used to control infectious aerosols, ZenGUARD™ Enhanced Air Filters have demonstrated improved aerosol filtration without increased airflow resistance, offering the potential for lower energy use, fewer filter changes and less landfill waste."1

Development on Demand

Zentek's Development on Demand model is straightforward: identify an opportunity, apply deep materials science, secure the intellectual property, and commercialize. ZenGUARD™ Enhanced Air Filters are a clear example of that model in action.

Zentek developed and patented ZenGUARD™ for air filtration and had it tested at the National Research Council of Canada ("NRC"). Testing in a purpose-built simulated classroom demonstrated approximately a fivefold improvement in aerosol filtration efficiency over an untreated filter, with no increase in pressure drop or energy consumption. The technology was then evaluated in a real-world setting. A three-month pilot at McKinnon Park Secondary School with the Grand Erie District School Board delivered 22% lower fan energy compared to the standard MERV 13 pleated filters it replaced, along with a substantially longer projected service life.1

ZenGUARD™ Enhanced Air Filters deliver four operational outcomes:

• Safer indoor air

• Lower HVAC energy consumption and associated emissions

• Longer service intervals that reduce total cost of ownership

• Less waste sent to the landfill

Available Now to Every Federal Department

In May 2026, Innovative Solutions Canada ("ISC") added ZenGUARD™ Enhanced Air Filters to its Pathway to Commercialization ("PTC") source list. This establishes Zentek as an exclusive potential supplier within the PTC framework to the Government of Canada for a three-year period, during which any federal department or agency may purchase ZenGUARD™ Enhanced Air Filters directly, without a competitive procurement process.2 Inclusion on the PTC source list does not guarantee a minimum number of orders or contracts, and procurement decisions remain at the discretion of individual federal departments and agencies.

This is a separate pathway from the standing offer announced today, and it is open now. A department that wants longer filter service life, lower fan energy, and better aerosol control can act on it immediately. Fewer changeouts and lower energy consumption reduce the operating cost of federal real property, and longer service intervals reduce operational waste, contributing to the federal target of diverting at least 75 percent of operational waste from landfills by 2030.3

About ZenGUARD™ Enhanced Air Filters

ZenGUARD™ Enhanced Air Filters use patented graphene technology to improve indoor air quality without increasing airflow resistance. The result is safer indoor spaces, lower HVAC energy use and emissions, longer service intervals that reduce total cost of ownership, and less waste to the landfill, aligned with the Greening Government Strategy's Scope 2 emissions and waste diversion targets. Independently validated by the NRC and documented in three peer-reviewed ASHRAE publications. Manufactured in Canada, ZenGUARD™ Enhanced Air Filters deliver all four outcomes in a single drop-in product.

About Zentek Ltd.

Zentek Ltd. is a Canadian intellectual property development and commercialization company advancing a portfolio of graphene-enabled and advanced material technologies across clean air, next-generation materials, and critical minerals. Core platforms are Albany Graphite, ZenGUARD™, and Triera. Albany is the Company's principal critical minerals asset.

For more information:

Mohammed (Moe) Jiwan

Chief Executive Officer, Zentek Ltd.

T: 437-826-3779

E: mjiwan2@zentek.com

www.zentek.com

Forward-Looking Statements

This news release contains forward-looking statements. Since forward-looking statements address future events and conditions, by their very nature they involve inherent risks and uncertainties. Although Zentek believes that the assumptions and factors used in preparing the forward-looking information in this news release are reasonable, undue reliance should not be placed on such information, which only applies as of the date of this news release, and no assurance can be given that such events will occur in the disclosed time frames or at all. Zentek disclaims any intention or obligation to update or revise any forward-looking information, whether as a result of new information, future events or otherwise, other than as required by law.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

References (public)

1 D. Sridhar, K. Owen, F. Mesicek, R. Shacklock, C. van der Kuur, Energy-Efficient Solutions for Improving Indoor Air Quality and Reducing Carbon Emissions in a Canadian School: The Role of Silver-Graphene Oxide Treated HVAC Air Filters, AVIC ASHRAE IEQ (2025).

2 Source: Innovation, Science and Economic Development Canada, "Helping Canadians breathe easy with Zentek." https://ised-isde.canada.ca/site/innovative-solutions-canada/en/our-stories/helping-canadians-breathe-easy-zentek

3 Source: Government of Canada, Greening Government Strategy. https://www.canada.ca/en/treasury-board-secretariat/services/innovation/greening-government/strategy.html

Source: View Original Filing on SEC EDGAR

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