German company Senken signs 50,000-ton biomass sequestration deal, delivery by end of 2028

en.Wedoany.com Reported - Berlin-based Senken has signed a multi-year carbon removal agreement with local company Carbonsate, making the deal the largest biomass sequestration agreement of its kind in Europe to date.

The agreement covers 50,000 tons of permanent carbon dioxide removal (CDR), to be delivered by end of 2028 through Carbonsate's Puro.earth-certified biomass geological sequestration project in Namibia.

The project primarily removes invasive shrubs from the savannah around Otjiwarongo, Namibia, and has passed Senken's Sustainability Integrity Index screening, which involves more than 600 data points.

The carbon credits generated by the agreement will be offered to Senken's corporate partners to meet their near-term demand for permanent CDR.

Senken CEO Adrian Wons stated that demand for permanent carbon removal has already outpaced supply, and the limited range of verified capacity aligned with corporate net-zero targets defines the market for the coming decade. The company enters into multi-year agreements to give European buyers access to reliable carbon removal at predictable prices.

This deal is Senken's third multi-year CDR supply commitment secured in 2026. Earlier this year, the company also announced an offtake agreement in the aviation sector, covering removals from direct air capture (DAC), industrial biochar, and regenerative agriculture.

Globally, this purchase is the second-largest buyer commitment in the biomass burial geological sequestration category and the largest commitment from an African-based project.

Carbonsate removes carbon dioxide through biomass sequestration. It does so by storing waste wood—which would otherwise be burned or naturally decomposed—in engineered underground chambers, keeping the CO2 isolated from the atmosphere for centuries.

Carbonsate expects to scale the project to more than 100,000 tons in the coming years, an expectation that has drawn interest from Senken and its corporate buyers. The parties plan to expand the scope of the agreement once capacity comes online.

Carbonsate co-founder and CEO Johanna Broell stated that long-term commitments provide project developers with the certainty to build ahead of demand. The agreement supports the expansion of the sequestration site in Namibia and brings meaningful, verified, high-integrity new supply of carbon removal to the market.