CATL’s 20% CarbonScape stake: biographite supply-chain notes for battery engineers
Reviewed by Tom Sullivan

First reported on MINING.com
30 Second Briefing
CATL has acquired a 20% stake and board seat in New Zealand-based CarbonScape, positioning itself as industrialisation partner for the company’s forestry by-product–derived “biographite” anode material. CarbonScape’s process converts renewable feedstock from major forestry suppliers into battery-grade graphite, targeting US and European lithium-ion supply chains that currently rely on oil-based feedstock for over 75% of graphite. A demonstration plant in Kotka, Finland, will build on an existing New Zealand pilot, with commercial-scale biographite production targeted by the end of the decade.
Technical Brief
- Transaction gives CATL a 20% equity stake plus at least one CarbonScape board seat.
- CATL’s role is explicitly framed as “industrialisation partner”, focused on scale-up and mass-production integration.
- CarbonScape has already run a biographite pilot plant in New Zealand producing anode-grade material.
- A dedicated demonstration facility is planned for Kotka, Finland, as the next industrial-scale step.
- Long-term renewable feedstock supply agreements are signed with several of the world’s largest forestry companies.
- Feedstock contracts cover future biographite plants in both Europe and North America, not just Finland.
- Partnership is intended to align technical de-risking of the process with immediate route-to-market via CATL.
Our Take
CATL’s 20% equity stake in CarbonScape fits with its broader upstream strategy seen in our database, where it is also committing 30 billion yuan to a mining subsidiary targeting lithium, nickel and other battery raw materials, signalling a push to secure both conventional and alternative anode supply chains.
With more than 75% of battery graphite still derived from oil-based feedstocks, CATL’s move into biographite plants in New Zealand, Finland, the US and India gives it a differentiated low-fossil-carbon anode option at a time when European and North American regulators are tightening carbon-footprint rules for imported battery materials.
CATL’s parallel work on sodium‑ion systems and electrified mining and steel operations in other recent pieces suggests CarbonScape’s biographite could ultimately be leveraged not just for EV cells but also for stationary storage and industrial electrification projects that need a stronger sustainability narrative around graphite and aluminium-intensive components.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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