Zentek Ltd. (ZTEK) SEC Filings

Zentek Ltd. (ZTEK) clarified that its common shares are expected to begin trading on the OTC Markets at the open of trading on Wednesday, September 2, 2026. The original communication had the correct date but misstated the day of the week.

The shares previously traded on Nasdaq and are expected to be quoted initially on an OTC Markets tier while Zentek’s application for quotation on the OTCQX Best Market is reviewed. The company expects a new U.S. OTC trading symbol, different from “ZTEK”, to be confirmed and published before quotation begins. Zentek’s common shares continue to trade on the TSX Venture Exchange under the symbol ZEN, which remains the primary listing and is unaffected. Share counts, certificates, and book-entry positions are unchanged, and shareholders are not required to take any action.

Zentek Ltd. (ZTEK) reports that its common shares will transition from trading on the Nasdaq Capital Market to the OTC Markets Group on September 2, 2026, after receiving a Nasdaq notice of delisting for non-compliance with the minimum bid price requirement. Zentek plans to request a hearing to appeal the delisting determination, but the hearing will not stay the suspension of trading, and Nasdaq trading is expected to be suspended at the open on that date. The company’s common shares will continue to trade on the TSX Venture Exchange under the symbol ZEN, which remains its primary listing. Zentek has applied for its shares to be quoted on the OTCQX Best Market and states that the transition to the OTC Markets Group is not expected to result in material impacts to its business or operations.

Zentek Ltd. (ZTEK) reported results of a new Preliminary Economic Assessment (PEA) for its 100%-owned Albany Graphite Project in Northern Ontario, prepared by Micon International Limited. The PEA models an integrated operation from open-pit extraction through flotation and fluidized bed reactor purification to ultra-high-purity graphite products for nuclear, defence and other strategic markets.

The study reports a pre-tax NPV (5%) of US$4.18 billion and after-tax NPV (5%) of US$3.85 billion, with pre-tax and after-tax IRRs of 27.7% and 27.4% and a discounted after-tax payback period of 4.4 years. Initial capital is estimated at US$817.0 million, with life-of-mine sustaining capital of US$1,161.6 million, within a total capital estimate of US$1,978.7 million. Average realized product price is US$23,485 per tonne, supporting average annual gross revenue of approximately US$651.3 million and net revenue of approximately US$639.3 million over a 30-year production period and 35-year overall project life.

The mine plan processes approximately 25.9 Mt of mill feed grading 3.9% Cg to produce about 30,000 tonnes of finished ultra-high-purity graphite per year. Updated mineral resources as of June 30, 2026 total 23.1 Mt Indicated at 4.14% Cg and 13.3 Mt Inferred at 2.88% Cg. The company notes that the PEA is preliminary in nature, includes Inferred Mineral Resources, and does not represent a mineral reserve or a demonstrated economically viable mining operation.

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.

Zentek Ltd. filed a provisional patent application in the United States covering ZEN-EMI-01, a water-based electromagnetic interference shielding coating produced from purified graphite from its Albany deposit. ZEN-EMI-01 is designed to absorb electromagnetic energy as heat within the coating rather than reflect it toward nearby systems.

Internal laboratory testing showed that a coating layer approximately as thick as two sheets of paper significantly reduced electromagnetic energy in the 8–12 GHz X-band, with the reflected portion of the signal measured below 5 decibels, although these results are preliminary and not independently verified. The development program over the twelve-month priority period includes third-party shielding measurements under standard methods, formulation optimization, application and durability testing with prospective partners, and scale-up using conventional coating manufacturing. Zentek highlights that ZEN-EMI-01 remains at the laboratory stage with no assurance of commercialization or patent grant.

Zentek Ltd. reported unaudited results for the three months ended June 30, 2026. Net sales were $0 compared with $57,797 a year earlier, and the company recorded a net loss of $2,043,675 or $0.02 per share. Operating expenses totaled $2.25 million, partly offset by $204,040 of other income, including $111,906 in government grants.

Liquidity improved significantly after a May 2026 private placement of 18,000,000 units at $1.00, plus ATM share sales of $571,618. Cash and cash equivalents rose to $16,596,697 from $1,302,738 at March 31, 2026, and total assets reached $30,859,538. Shareholders’ equity increased to $25,263,443, though Zentek carried an accumulated deficit of $92,937,877.

The company continues to develop graphene-based coatings and the Albany Graphite Project, capitalizing $583,016 of exploration and evaluation costs in the quarter. Management highlights a material uncertainty about going concern, noting ongoing losses and dependence on successful commercialization and/or further financing despite the strengthened cash position.

Zentek Ltd. filed an amended foreign issuer report to change how a prior disclosure is used in its U.S. registration materials. Amendment No. 1 to the August 10, 2026 Form 6-K now formally incorporates Exhibit 99.1 into Zentek’s shelf Registration Statement on Form F-3 (File No. 333-278886). Exhibit 99.1 is a press release titled “Zentek Announces New PEA for Albany Graphite: US$3.85 billion after-tax NPV at a 5% discount rate, 27.4% after-tax IRR, on an acid-free route to 99.9992% purity graphite.” The amendment states there are no other changes to the original report, and it clarifies that the exhibit is deemed part of the Form F-3 from the date the initial report was furnished, unless later superseded.

Zentek Ltd. reported a new Preliminary Economic Assessment for its 100%-owned Albany Graphite Project in Northern Ontario, targeting ultra-high-purity graphite for nuclear, defence and other strategic markets. The study, prepared by Micon under NI 43-101, models an integrated operation from open-pit mining through flotation and fluidized bed reactor purification.

The PEA estimates an after-tax NPV of US$3.85 billion at a 5% discount rate, an after-tax IRR of 27.4%, and a discounted after-tax payback of 4.4 years, based on an initial capital cost of US$817 million and life-of-mine sustaining capital of US$1.16 billion. The model assumes average annual finished product output of 30,000 tonnes, an average realized product price of US$23,485 per tonne, and average annual net revenue of about US$639 million over a 30-year operating life.

Bench-scale testwork indicates Albany graphite can be purified thermally to 99.9992% carbon with low boron content, without hydrofluoric acid. Updated mineral resources total 23.1 Mt of Indicated material grading 4.14% Cg and 13.3 Mt of Inferred at 2.88% Cg. The assessment is preliminary, relies partly on Inferred resources, and does not demonstrate economic viability; no construction decision has been made.

Zentek Ltd. filed Amendment No. 1 to a prior Form 6-K to incorporate Exhibit 99.1, a June 26, 2026 press release, into its Registration Statement on Form F-3 (File No. 333-278886).

The press release announces Zentek forming a U.S. joint venture to position its Albany ultra-high-purity graphite in the North American national-security supply chain. The amendment makes no other changes to the original report and deems the exhibit part of the Form F-3 from the date the initial report was furnished.