Under the terms of the deal, the U.S. software giant will buy 300,000 tonnes of carbon dioxide from Arca through the company’s carbon mineralization technology, which permanently traps CO2 inside rock formations. Arca and Microsoft did not disclose the financial terms. (The Logic)

Talking point: The relatively young Vancouver startup has landed a major new customer. Founded in 2021, Arca uses autonomous rovers to churn mine waste and expose its contents to the atmosphere. The company says that by exposing that waste and then zapping it with micro-waves, the technology lets unmineralized tailings soak up large amounts of CO2 and store it in solid form, essentially accelerating a process that occurs naturally over many years. Earlier this year, Arca completed its first pilot project at a BHP nickel mine in western Australia, and is reportedly seeking US$20 million in Series A funding, according to PitchBook, on top of the roughly US$2.5 million it has already raised.