Zentek Awarded ISC Testing Stream Contract to Test ZENGuard(TM)-Coated HVAC Filters

GUELPH, ON / ACCESSWIRE / November 30, 2021 / Zentek Ltd. ("ZEN" or the "Company") (TSXV:ZEN)(OTC PINK:ZENYF), a Canadian, IP development and commercialization company focused on next-gen healthcare solutions, today announces it has been awarded an …