Arca

Arca Climate Technologies is an industrial mineralization company that recovers critical metals (starting with nickel and copper) from mine waste and delivers durable carbon removal by accelerating carbon mineralization in alkaline industrial wastes such as ultramafic mine tailings and steel slag. It also characterizes treated tailings for reuse as upcycled material, and offers metal recovery and carbon removal testwork. It works with mining and industrial partners and sells carbon removal to buyers including Microsoft, Stripe and Shopify.