# EDGAR Filing Document

**Accession Number:** 0001904501
**File Stem:** 0001062993-23-007453
**Filing Date:** 2023-3
**Character Count:** 7404
**Document Hash:** 3d93f88e0752e2b4f0d5be24269b4c7d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001062993-23-007453.hdr.sgml**: 20230322

**ACCESSION NUMBER**: 0001062993-23-007453

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 3

**CONFORMED PERIOD OF REPORT**: 20230322

**FILED AS OF DATE**: 20230322

**DATE AS OF CHANGE**: 20230322

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Zentek Ltd.
- **CENTRAL INDEX KEY:** 0001904501
- **STANDARD INDUSTRIAL CLASSIFICATION:** MISCELLANEOUS CHEMICAL PRODUCTS [2890]
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** A6
- **FISCAL YEAR END:** 0331

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-41310
- **FILM NUMBER:** 23751873

**BUSINESS ADDRESS:**
- **STREET 1:** 24 CORPORATE CT
- **CITY:** GUELPH
- **STATE:** A6
- **ZIP:** N1G 5G5
- **BUSINESS PHONE:** (844) 730-9822

**MAIL ADDRESS:**
- **STREET 1:** 24 CORPORATE CT
- **CITY:** GUELPH
- **STATE:** A6
- **ZIP:** N1G 5G5

------

**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**

**OF THE SECURITIES EXCHANGE ACT OF 1934**

**For the month of <u>March 2023</u>**

**Commission File Number: <u>001-41310</u>**

<u>**ZENTEK LTD.**</u>

**(Registrant)**

**24 Corporate Court**

<u>**Guelph, Ontario N1G 5G5 Canada**</u>

 **(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 ☒

Indicate by check mark if the Registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ☐

Indicate by check mark if the Registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ☐

------

<u>**SIGNATURES**</u>

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.** | **ZENTEK LTD.** |
|  | (Registrant) | (Registrant) |
| Date: March 22, 2023 | By | /s/ Wendy Ford |
|  |  | Wendy Ford |
|  |  | Chief Financial Officer |

---

------

<u>**EXHIBIT INDEX**</u>

---

| | |
|:---|:---|
| <u>**Exhibit**</u> | <u>**Description of Exhibit**</u> |
| [99.1](exhibit99-1.htm) | [Press Release dated March 22, 2023 - Zentek Announces New Antimicrobial Testing Results](exhibit99-1.htm) |

---

------

## Exhibit 99.1

------

![](exhibit99-1x001.jpg)

**Zentek** **Announces New Antimicrobial Testing Results**

**Guelph, ON - March 22, 2023, Zentek Ltd.** ("**Zentek**" or the "**Company**") (Nasdaq: ZTEK; TSX-V: ZEN), an intellectual property development and commercialization company, announces that SGS Standard Technical Services Co. ("SGS") recently conducted tests to determine the extent of the antimicrobial properties and the time required to achieve deactivation of bacteria and virus on ZenGUARD™-coated mask material.

"Our goal at Zentek from early on in the pandemic was to create a technology that could improve the health and safety of our valued frontline healthcare workers" said Greg Fenton, CEO of Zentek. "Our patented ZenGUARD™ antimicrobial technology with 99.99% bacterial and viral filtration efficiency brings an added level of protection that doctors, nurses and all frontline healthcare providers deserve. We are excited to bring our unique ZenGUARD™ surgical masks to them via our Canadian distribution partnership with Southmedic Inc."

**Key Data points**

* Antibacterial testing completed by SGS following AATCC 100-2019 Test Method for Antibacterial Finishes on Textile Material

* Antiviral testing completed by SGS and followed ISO 18184: 2019 Textiles - Determination of antiviral activity of textile products TCID<sub>50 </sub>method

* The ZenGUARD™-coated mask fabric demonstrated over 99.99% antibacterial effectiveness after 1 hour where 260,000 Escherichia Coli (E. coli) Colony Forming Units (CFU) was reduced to under 100 CFU.

* The untreated control mask samples saw 120,000 E. coli CFU grow to 2.5 million in 1 hour and 1.1 billion in 8 hours

* The ZenGUARD™-coated mask fabric demonstrated 86.7% antiviral effectiveness after 1 hour against H<sub>1</sub>N<sub>1</sub> and 99.7% after 8 hours

* These meaningful reductions in bacterial and viral load may have an impact in the reduction of infectious disease in high-risk environments

**Impact in High-Risk Environments**

In the context of high-risk indoor settings, such as hospitals where doctors, nurses and other healthcare professionals and patients wear surgical masks and are exposed to dangerous bacteria and viruses daily, this data offers compelling evidence that ZenGUARD™-coated mask material can provide additional protection with the strong antimicrobial properties of ZenGUARD™. The reduction in bacterial and viral growth in the mask materials may contribute to protecting doctors, nurses, other hospital staff and patients, as well as long term care residents and their caretakers, from mask acne to potentially preventing significant disease from bacterial or viral infections.

------

Southmedic Inc. is Zentek's exclusive distribution partner in Canada for hospitals, clinics, long-term care, nursing homes and community health care services. For any purchase requirements, please contact Southmedic Customer Service at <u>custserv@southmedic.com</u> or by phone at 1-800-463-7146, Mon - Fri 8:30am - 5:00pm.

**About Zentek**

Zentek is an IP development and commercialization company focused on the research, development and commercialization of novel products using graphene and nanomaterials for use in the healthcare industry and beyond.

Zentek's patented ZenGUARD™ coating is shown to have 99% antimicrobial activity and to significantly increase the bacterial and viral filtration efficiency of both surgical masks and HVAC systems. Zentek's ZenGUARD™ production facility is located in Guelph, Ontario.

**For further information:** 

Mitch Swergold<br>Tel: (917) 930-8723<br><u>Email: mswergold@zentek.com</u> 

To find out more about Zentek Ltd., please visit our website at <u>www.Zentek.com</u>. A copy of this news release and all material documents in respect of the Company may be obtained on ZEN's SEDAR profile at <u>http://www.sedar.com/</u>.

**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.

------