Supply contracts reshaping the geopolitics of the EV battery industry

Behind the headline-grabbing factory openings and model launches, the EV industry is still being shaped by something far less visible: the supply contracts that feed battery production. These long-term deals, struck between gigafactory operators and suppliers of metals, chemicals and components, have become one of the most important levers in the electric transition, determining not just cost but also where cars can be built, how quickly output can grow and which manufacturers can sec...

At their simplest, these arrangements lock in access to materials such as lithium, nickel, cobalt and manganese, along with refined battery-grade inputs that are often more valuable than the ore itself. In practice, they now function as strategic partnerships. Automakers and cell makers are increasingly seeking guaranteed supply years ahead, sometimes pairing purchase commitments with equity investments in mines, refineries or processing plants. That shift has turned procurement into a core competitive discipline rather than a back-office exercise.

The scale of the challenge is already clear. The International Energy Agency said in its Global EV Outlook 2026 that global lithium-ion battery manufacturing capacity had risen to more than 4 terawatt-hours by the end of 2025, with China accounting for over 80% of the total. The same report said Chinese producers supply nearly all battery cells used worldwide, underlining how concentrated the industry remains despite heavy investment elsewhere.

That concentration is visible across the wider EV supply chain too. The IEA said China produced about 70% of electric cars in 2025, more than 80% of battery cells, around 85% of cathode active material and over 90% of anode active material. ACEA, the European Automobile Manufacturers’ Association, has separately warned that the EU accounts for just 7% of global battery production and that only 15% of EU capacity is managed by Europe-based companies. It also said China and the US dominate 87% of upstream battery supply capacity, while China controls every raw-material refining stage except cobalt.

Those figures help explain why supply deals now carry so much geopolitical weight. S&P Global has described China’s dominance of lithium refining as a major risk for the scale-up of EV adoption in the US and allied economies. With critical processing still concentrated in a handful of countries, companies are under pressure to diversify sources and secure supply from more politically reliable jurisdictions.

Policy is amplifying that pressure. Industrial incentives in North America and Europe increasingly reward local sourcing and allied-nation supply chains, while EV tax credit rules can depend on the provenance of battery components and materials. That has made contracts for North American and European lithium, refining and chemical processing far more valuable than they were only a few years ago.

Technology is also reshaping what these deals need to cover. The IEA’s Global Critical Minerals Outlook 2025 said lithium iron phosphate batteries now account for almost half of the global electric car market, up from less than 10% in 2020. That rapid rise is shifting demand away from some traditional inputs and towards different material streams, forcing suppliers and buyers alike to build more flexibility into contracts.

For gigafactory operators, that flexibility matters. A deal signed today may need to remain useful even if battery chemistry changes before the contract ends. As a result, procurement teams are writing in volume options, substitution clauses and broader sourcing rights to avoid being locked into outdated assumptions. Suppliers, meanwhile, are racing to add refining and processing capacity to meet the tighter specifications demanded by modern battery plants.

The result is an industry in which a single supply agreement can signal far more than a line item on a balance sheet. It can reveal where new capacity will be built, which regions are gaining influence, and which companies are best positioned for the next phase of EV growth. In an industry defined by scale, the most consequential battle is often fought long before a car reaches the road.

Source: Noah Wire Services