DIRTT Environmental Solutions Upgrades to OTCQX, Expanding Access for U.S. InvestorsBusiness PenJune 11, 2025 June 11, 2025 [stock_market_widget type=”card” template=”basic2″ assets=”DRTTF” realtime=”true” api=”yahoo-finance”] DIRTT Environmental Solutions Ltd. (TSX: DRT; OTC: DRTTF), a company specializing in industrialized construction, has just taken a significant...