From pollutant to building material - we create living space from CO₂

Global Construction C-Sink – Buildings become C-sinks

Cancret walls contain biogenic building materials and bind CO₂. Buildings and their climate impact can now be certified.

C-sinks certification

Developed by the Ithaka Institute in collaboration with Carbon Standards International, the new Global Construction C-Sink Standard certifies the CO2 storage capacity (CDR, carbon dioxide removal) of buildings constructed from biogenic building materials. The CO2 certificates created are tradable and promote construction using climate-friendly materials.

The standard is based on the European Union's Carbon Removals and Carbon Farming (CRCF) Regulation (EU/2024/3012) and is ICROA-endorsed.

→ Link CRCF

Icon of a document with a sheet and a seal representing environmental certification.

Certification process according to the Global Construction C-Sink Standard

  • Biomass carbon (e.g. Hempcrete) is tracked from cultivation to the construction site using digital dMRV systems.

  • All greenhouse gas emissions (cultivation, transportation, processing) are recorded in an emissions portfolio and offset with geological (CO₂, N₂O) or temporary (CH₄) carbon sinks.

  • After verification by certified C-sink managers and accredited certifiers, the C-sink is entered in the Global Carbon Register.

  • Annual checks ensure the integrity of the temporary C-sink (e.g. 60 years).

    Europe's largest hemp building (OPENLY Valley Widnau) - built with our technology.

CO₂ compensation and certificate trading: Certified Hempcrete buildings open up lucrative opportunities for CO₂ compensation and additional income. Thanks to our partnership with myclimate.org, we can compensate building owners 85 euros per ton of CO2 (approx. 10m3 Hempcrete = 1 t CO2).
With the eco-friendly appeal of Hempcrete, you can position your project as a sustainability leader, attract green investors and increase real estate value in a sustainability-conscious market.

Biogenic building cost subsidies

Become part of the revolution: Our asset-light approach and our license model enable global expansion without high initial investments.

CANCRET for your construction project:

A conventional timber frame construction is planned and put out to tender. These elements are poured horizontally at the locally selected timber constructor using the Hempcrete mixer and mobile mixing plant patented by CANCRET. Around 50m2 can be produced per day.

The highlight: the mixing plant comes to the element and the added value remains with the timber manufacturer. This strengthens the ecosystem and reduces transportation routes.

Alternatively, we offer production at our production facility in Nenzing, Austria.

→ Contact us for a non-binding consultation.

Our production in Nenzing AT (Lake Constance)