CATL Mandates Carbon Disclosure From Suppliers Starting 2027

Supply Chain Mandate

Contemporary Amperex Technology (CATL) announced in August that suppliers bidding on projects beginning in 2027 must submit carbon footprint data covering emissions generated during raw material procurement, manufacturing, and distribution. The requirement applies to all suppliers seeking contracts with the Chinese battery maker, which commands roughly one-third of the global EV battery market.

The policy represents a significant shift in procurement practices for the Fujian-based manufacturer. Suppliers will need to quantify carbon dioxide output at each stage of their operations, a level of disclosure that many smaller component makers have not previously tracked or reported.

Regulatory Context

The move comes as CATL expands its manufacturing footprint in Europe, where regulators have begun enforcing stricter rules on battery carbon intensity. The European Union's Battery Regulation, which took effect in phases starting February 2024, requires manufacturers to provide carbon footprint declarations for EV batteries sold in the bloc. By 2027, batteries exceeding specified carbon thresholds will be barred from the European market.

CATL operates production facilities in Germany and Hungary and supplies major European automakers including BMW, Volkswagen, and Stellantis. The company's European revenue reached approximately USD 8.2 billion in 2025, accounting for roughly 18 per cent of its global sales, according to company filings.

Upstream Pressure

The supplier mandate effectively pushes decarbonisation responsibility deeper into CATL's value chain. Battery production is carbon-intensive, with significant emissions embedded in the mining and refining of lithium, cobalt, nickel, and graphite. A 2025 study by the International Energy Agency found that raw material processing accounts for approximately 40 per cent of a lithium-ion battery's total lifecycle emissions.

CATL has not disclosed how it will evaluate supplier data or whether carbon performance will factor into contract awards alongside price and quality metrics. The company stated that the disclosures will help it "optimise supply chain emissions management," but did not specify penalties for non-compliance or incentives for low-carbon suppliers.

Competitive Implications

CATL's policy aligns with similar moves by South Korean battery makers LG Energy Solution and Samsung SDI, both of which introduced supplier carbon reporting requirements in 2025. However, CATL's market position gives the mandate broader reach. The company produced 402 gigawatt-hours of batteries in 2025, more than its three largest competitors combined.

Smaller suppliers, particularly those in China's industrial metals and chemicals sectors, may face higher compliance costs. Establishing emissions tracking systems and securing third-party verification can require capital investment that mid-sized firms have historically avoided. Industry observers expect some suppliers to consolidate or exit the market if carbon disclosure becomes a standard procurement hurdle across major battery makers.

Decarbonisation Trajectory

CATL has committed to achieving carbon neutrality across its direct operations by 2035. The company has installed solar capacity at several manufacturing sites and signed long-term renewable energy purchase agreements in Sichuan and Qinghai provinces. Its European plants source a higher proportion of renewable electricity due to grid availability and regulatory requirements.

Scope 3 emissions, which include supplier activities, remain the larger challenge. These indirect emissions typically represent 70 to 80 per cent of a battery manufacturer's total carbon footprint. Addressing them requires coordination across dozens of suppliers spanning multiple countries and industries, each with different levels of emissions transparency and decarbonisation capability.

The supplier mandate is an early step in that direction. How rigorously CATL enforces the requirement and whether it ties carbon performance to commercial terms will determine whether the policy drives meaningful emissions reductions or remains a reporting exercise.