Lithos Carbon Enhanced Rock Weathering

Lithos Carbon offers enhanced rock weathering for farms: crushed basalt is spread on fields to remove carbon dioxide from the air and can improve soil. The site does not state a headquarters or founding year.

The service covers feedstock delivery, soil sampling and application costs, and the basalt also regulates soil pH as a limestone replacement, replenishes topsoil and supplies silicon for drought and pest resistance. Proprietary machine learning software optimizes application for yield and carbon capture, and farm-to-ocean modeling traces captured carbon through runoff and rivers, backed by research with Yale University and Georgia Institute of Technology. About 3 tons of basalt can capture up to 1 ton of CO2 according to the site.

• Basalt rock dust deployment: crushed basalt applied to farm fields.
• Soil services: pH regulation, topsoil replenishment and silicon supply.
• ML optimization: software tuning application for yield and carbon capture.
• Farm-to-ocean modeling: tracing captured carbon through runoff and rivers.
• Registry-certified credits: removal tons certified through a carbon registry.

Farm cooperatives and plantations in Vietnam's basalt-rich Central Highlands can study rock-dust programs for soil pH and carbon removal. Agricultural input suppliers can evaluate basalt as a liming alternative. Corporates with net-zero plans can buy ERW credits.

Farms receive basalt delivery and application with feedstock, soil sampling and application costs covered by Lithos. Basalt can replace limestone for pH control and supply silicon for drought and pest resistance. Buyers such as Frontier, Stripe, Alphabet and Shopify purchase the resulting registry-certified credits, with 5,160 certified tons issued in December 2025.

Enhanced rock weathering is scaling through registry-certified issuance and large corporate purchases such as Frontier's. Basalt is widely available in tropical and volcanic regions, so Southeast Asian farmland, including parts of Vietnam, is a potential region for similar programs.

Founded in 2022 per Decarbonfuse; expanded its partnership with Climeworks in March 2026. Investors listed on the site include Union Square Ventures, Greylock, Carbon Removal Partners and Bain Capital. News: Microsoft feature on scaling carbon removal from farms to oceans (January 2026); Fast Company World Changing Idea 2023.