Exomad Green and Senken Partner on 105,000-Tonne Biochar Carbon Removal Deal for Aviation

Exomad Green, the Bolivia-based biochar producer and the world's largest durable carbon dioxide removal (CDR) supplier, has signed a new agreement with Berlin-based carbon credit procurement platform Senken to deliver 105,000 tonnes of permanent CO2 removal between 2026 and 2028. The credits will be directed toward aviation companies working to meet their net-zero commitments.

The deal brings the total contracted CDR volume between the two companies to nearly $30 million.

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Credits will be sourced from Exomad Green's biochar production facilities in Riberalta and Concepcion, Bolivia. Additional volumes are expected from the company's Guarayos facility, which is currently under construction and set to become the world's largest biochar site when operational. Phase 1 of the Guarayos project is scheduled to come online by mid-2026, with capacity to remove 160,000 tonnes of CO2 annually.

How the Biochar Process Works

Exomad Green produces biochar from sustainably sourced forestry residues using advanced pyrolysis technology. The process converts biomass into a carbon-dense product that locks CO2 away from the atmosphere for hundreds of years. Through the company's biochar donation program, the material is also distributed to local and indigenous farming communities in Bolivia to improve soil quality and agricultural productivity.

The company's carbon credits are certified through Puro.earth and verified via Carbonfuture's digital MRV+ platform.

Aviation's Growing Interest in Durable CDR

The agreement reflects a broader trend of airlines diversifying their carbon credit portfolios beyond nature-based offsets. With ICAO's CORSIA compliance scheme now in effect and IATA projecting airline compliance costs to reach $1.7 billion in 2026, aviation companies are increasingly turning to permanent removal technologies that can hold up under regulatory and audit scrutiny.

Diego Justiniano, CEO of Exomad Green, said the deal points to a structural change in how the aviation sector approaches climate action. "Aviation is one of the most demanding sectors when it comes to climate integrity. The fact that capital is now flowing into permanent carbon removal signals a structural shift in this industry."

Senken's Procurement Approach

Senken uses a proprietary Sustainability Integrity Index (SII) to evaluate projects against more than 600 data points, filtering out 95% of available market supply. The platform builds audit-ready carbon credit portfolios aligned with buyer and regulatory expectations.

Adrian Wons, CEO of Senken, said demand for defensible carbon portfolios continues to grow. "We're seeing repeat demand from enterprise buyers who need carbon portfolios they can defend to their boards, their auditors, and increasingly, to regulators. This agreement reflects how permanent removal is becoming a core component of credible corporate climate strategies, and why rigorous due diligence matters more than ever."

Exomad Green's Expanding Footprint

This deal adds to Exomad Green's growing list of major CDR agreements. The company holds the world's largest biochar carbon removal contract with Microsoft for 1.24 million tonnes of CO2 over 10 years, signed in May 2025. With three facilities either operational or under construction, Exomad Green is targeting 1 megatonne of annual CO2 removal capacity by 2027.