GUELPH, ON / ACCESS Newswire / June 26, 2025 / Zentek Ltd. (" Zentek " or the " Company ") (NASDAQ:ZTEK)(TSXV:ZEN), an intellectual property technology development and commercialization company, reports that it has received a letter from Health Canada noting that Health Canada is considering the classification of Z enGUARD™ Enhanced Air Filters and inviting Zentek to submit additional information regarding appropriate... Read More