Zentek (NASDAQ: ZTEK) wins 3-year exclusive federal path for ZenGUARD air filters
Rhea-AI Filing Summary
Zentek Ltd. reports that its ZenGUARD™ Enhanced Air Filters have been added to Innovative Solutions Canada’s Pathway to Commercialization source list. This makes Zentek an exclusive supplier of this type of innovation to the Government of Canada for a three-year period, allowing any federal department or agency to buy the filters directly.
The technology was validated by the National Research Council in a simulated classroom, where ZenGUARD™ increased the viral filtration efficiency of a standard MERV 8 filter by about fivefold in a single air exchange without measurable impact on airflow or energy use. The filters aim to deliver safer indoor air, lower HVAC energy consumption and emissions, longer service intervals, and less landfill waste, aligning with the federal Greening Government Strategy’s emissions reduction and waste diversion goals.
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Insights
Zentek gains three-year exclusive federal procurement pathway for ZenGUARD filters.
Zentek has secured listing of its ZenGUARD™ Enhanced Air Filters on Innovative Solutions Canada’s Pathway to Commercialization source list. This grants three years of exclusive-supplier status for this type of innovation, enabling direct purchases by any Canadian federal department or agency.
The filters were validated by the National Research Council, which found roughly fivefold higher viral filtration efficiency versus a standard MERV 8 filter in a simulated classroom, with no measurable airflow or energy penalty. This technical validation, plus peer-reviewed ASHRAE publications and compliance with ASHRAE Standards 52.2 and 241, strengthens credibility for institutional buyers.
The listing does not guarantee any orders; procurement remains at the discretion of individual departments. Commercial impact will depend on how aggressively large portfolios such as Public Services and Procurement Canada, ISED, and the NRC adopt ZenGUARD™ over the three-year window and whether success with federal customers supports broader uptake in provincial, municipal, healthcare, education, and international markets.
Key Figures
Key Terms
Pathway to Commercialization regulatory
Greening Government Strategy regulatory
Scope 2 greenhouse gas emissions environmental
ASHRAE Standard 52.2 technical
ASHRAE Standard 241 technical
MERV 8 filter technical
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 May 2026
Commission File Number: 001-41310
ZENTEK LTD]
(Translation of registrant's name into English)
1123 York Road in
Guelph,Ontario N1G 5G5 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: May 13, 2026 | By | /s/ Wendy Ford |
| Wendy Ford | ||
| Chief Financial Officer | ||
EXHIBIT INDEX
| Exhibit | Description | |
| 99.1 | News Release dated May 13, 2026 |
Zentek's ZenGUARD™ Enhanced Air Filters Now Available for Direct Procurement by All Federal Departments and Agencies
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, ON - May 13, 2026 - Zentek Ltd. ("Zentek" or the "Company") (TSXV: ZEN) (NASDAQ: ZTEK) 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 agency may purchase ZenGUARD™ Enhanced Air Filters directly.1 The milestone is the culmination of a multi-year collaboration between Zentek, ISC, and the National Research Council of Canada ("NRC").
A National Challenge, Answered
Indoor air quality became a national priority during the pandemic, particularly in federal buildings, schools, and public spaces where improving filtration without consuming more energy or replacing existing heating, ventilation, and air conditioning ("HVAC") infrastructure presented a significant technical challenge. To help address this need, Zentek was awarded a contract under the ISC Testing Stream - a standing open call for innovative Canadian prototypes - to validate ZenGUARD™ Enhanced Air Filters with the NRC.
The NRC conducted rigorous validation testing in a purpose-built simulated classroom environment designed to replicate the most challenging real-world conditions. The results, as profiled by Innovation, Science and Economic Development Canada ("ISED"), showed that ZenGUARD™ increased viral filtration efficiency of a standard MERV 8 filter by approximately fivefold in a single air exchange, via a physical mechanism, with no measurable impact to airflow or energy consumption.
Four Operational Outcomes in a Single Drop-in Product
ZenGUARD™ Enhanced Air Filters deliver four operational outcomes through a single drop-in product:
- 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
Beyond NRC validation, the underlying performance is documented in three peer-reviewed ASHRAE publications and meets ASHRAE Standard 52.2 and ASHRAE Standard 241 testing requirements. ZenGUARD™ is manufactured in Guelph, Ontario and ZenGUARD™ Enhanced Air Filters are currently available for sale in Canada. The underlying technology is patented in Canada with applications filed in over 40 additional jurisdictions.
Direct Alignment with the Greening Government Strategy
ZenGUARD™'s four operational outcomes are aligned with objectives under the federal Greening Government Strategy. Lower HVAC energy consumption can support reduced Scope 2 greenhouse gas emissions, consistent with the Government of Canada's commitment to reduce absolute Scope 1 and Scope 2 emissions by 40 percent by 2025 and at least 90 percent below 2005 levels by 2050. Longer filter service intervals reduce operational waste generated by federal real property operations, contributing to the federal target of diverting at least 75 percent of operational waste from landfills by 2030.2 Safer indoor air supports occupant health and well-being objectives identified under the Canada Green Buildings Strategy. ZenGUARD™ Enhanced Air Filters allow federal agencies to advance multiple greening commitments simultaneously through a single, easy-to-implement drop-in product decision.
Available Now to Every Federal Department
ZenGUARD™ Enhanced Air Filters are available for direct purchase by any Government of Canada department or agency for a period of three years. Potential users include, but are not limited to, the large real property portfolios managed by Public Services and Procurement Canada's Real Property and Portfolio Management Branch, as well as facilities operated by ISED and the NRC. The full PTC source list, which will include ZenGUARD™ Enhanced Air Filters, is available at: https://ised-isde.canada.ca/site/innovative-solutions-canada/en/pathway-commercialization
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.
Beyond Federal Procurement
ZenGUARD™ Enhanced Air Filters are also available to provincial and municipal governments, public and private healthcare systems, commercial real estate operators, educational institutions, and international institutional buyers seeking validated indoor air quality solutions.
Management Commentary
"ISC is the federal government's open invitation to Canadian innovators: bring your best technology, and the country's top labs will put it to the test. Zentek answered that call with ZenGUARD™ Enhanced Air Filters. The NRC set a high bar - reduce airborne viral load, work with existing HVAC systems, no airflow penalty, and no harmful particulates - and our technology met every objective. Our addition to the PTC source list is the culmination of a multi-year journey with our partners at ISC and the NRC, and I want to thank everyone involved for their commitment and hard work. ZenGUARD™ Enhanced Air Filters are now available to every federal department in Canada with the NRC's validation behind it, and we look forward to delivering safer indoor spaces, lower energy use, and less waste across the federal service and beyond."
About ZenGUARD™ Enhanced Air Filters
ZenGUARD™ Enhanced Air Filters use patented graphene technology to improve indoor air quality without increasing airflow resistance. The result: 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 are the only graphene filter technology delivering 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. The Company's core platforms are Albany Graphite, ZenGUARD™, and Triera. Albany is the Company's principal critical minerals asset and is advancing toward a Preliminary Economic Assessment targeted for completion in Summer 2026.
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 accepts responsibility for the adequacy or accuracy of this release.
References (public)
1 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
2 Source: Government of Canada, Greening Government Strategy. https://www.canada.ca/en/treasury-board-secretariat/services/innovation/greening-government/strategy.html
For more information:
Mohammed (Moe) Jiwan
Chief Executive Officer, Zentek Ltd.
T: 416-709-8876
E: mjiwan2@zentek.com
W: www.zentek.com
FAQ
What did Zentek Ltd. (ZTEK) announce about its ZenGUARD Enhanced Air Filters?
Zentek announced that ZenGUARD™ Enhanced Air Filters were added to Innovative Solutions Canada’s Pathway to Commercialization source list. This gives the company exclusive supplier status for this type of innovation to the Government of Canada for three years, enabling direct federal departmental purchases.
How long will Zentek be an exclusive supplier to the Government of Canada for ZenGUARD filters?
Zentek will be an exclusive supplier of this type of innovation within the Pathway to Commercialization framework for a three-year period. During this time, any Canadian federal department or agency may purchase ZenGUARD™ Enhanced Air Filters directly, although no minimum order volume is guaranteed.
What performance benefits do Zentek’s ZenGUARD Enhanced Air Filters provide?
ZenGUARD™ Enhanced Air Filters increased viral filtration efficiency of a standard MERV 8 filter by about fivefold in a single air exchange in NRC testing. They are designed to deliver safer indoor air, lower HVAC energy use and emissions, longer service intervals, and reduced landfill waste.
How were Zentek’s ZenGUARD Enhanced Air Filters validated?
The National Research Council tested ZenGUARD™ Enhanced Air Filters in a purpose-built simulated classroom representing challenging real-world conditions. Results showed roughly fivefold higher viral filtration efficiency without measurable impact on airflow or energy use, and performance is documented in three peer-reviewed ASHRAE publications.
How do ZenGUARD Enhanced Air Filters align with Canada’s Greening Government Strategy?
ZenGUARD™ Enhanced Air Filters support Greening Government Strategy goals by lowering HVAC energy use, helping reduce Scope 2 greenhouse gas emissions, and extending filter service intervals to cut operational waste. These benefits align with federal emission reduction and at least 75 percent operational waste diversion targets.
Who besides the federal government can purchase Zentek’s ZenGUARD Enhanced Air Filters?
ZenGUARD™ Enhanced Air Filters are also available to provincial and municipal governments, public and private healthcare systems, commercial real estate operators, educational institutions, and international institutional buyers seeking validated indoor air quality solutions using Zentek’s patented graphene-based filter technology.