Eion Carbon is a carbon removal company that uses enhanced rock weathering to permanently remove CO2 from the atmosphere. It sources olivine from mining partners such as Sibelco, transports the pulverized mineral to farmland, and applies it as a replacement for agricultural lime. It measures removal with a patented direct soil-sampling MRV approach. It sells carbon removal credits and develops insetting projects for agriculture-aligned businesses, with a focus on rural US communities.