12:45 PM EST, 11/12/2025 (MT Newswires) -- Northstar Clean Technologies ( ROOOF ) shares rose 4.6% on Wednesday after it secured a five-year contractual arrangement with the City of Calgary for the receipt and reprocessing of the city's asphalt shingles at the company's facility in Calgary, Alberta.

The company said the contract will start in April 2026, and that it will receive all asphalt shingles collected at the city's Spy Hill, East Calgary, and Shepard Waste Management Facilities for reprocessing.

Northstar said it will work in partnership with the city on the collection, inspection, screening and contaminant removal of loads diverted from the city's waste-management Facilities to the Empower Calgary Facility.

"With supply under the contract, together with supply from IKO and Ecco, we have secured more feedstock than required for the facility to operate on a single shift basis and process 40,000 tonnes per year," said Northstar Chief Executive Aidan Mills.

Shares of the company were last seen up $0.015 at $0.34 on the TSX Venture Exchange.

Price: 0.34, Change: +0.02, Percent Change: +4.62