Under Development

Sectoral Scope

8. Mining/Mineral production

Development ID#



Draft Methodology

This proposed methodology applies to project activities that enhance ex-situ mineral carbonation in mineral waste material (which includes mining and industrial wastes) through engineered activities on timescales relevant to global decarbonization efforts. Mineral carbonation (or CO2 mineralization) is a reaction between CO2 and certain metals that produces stable carbonates in mineral wastes, thereby sequestering CO2. This methodology leverages the global availability of mineral waste and applies to all project activities performed specifically to enhance the ex-situ mineral carbonation of mineral waste.


The concept note was submitted by Exterra Carbon Solutions (opens on external site) and is currently at “Step 3: Draft Methodology Development” of the VCS Methodology Development and Review Process, 4.3 (PDF).

Stakeholders interested in collaborating during methodology development or developing projects that this methodology might enable are encouraged to contact Please include the Methodology Development ID# CN0154 in the subject line.