BMW and CATL Collaborate on Supply Chain Carbon Reduction

BMW and CATL forge agreement on battery carbon tracking

BMW Group and CATL, the world’s largest electric vehicle battery manufacturer, signed a memorandum of understanding on February 25, 2026. The agreement focuses on two areas: reducing carbon emissions across the battery supply chain and enabling trusted data exchange through the Battery Passport framework. Oliver Zipse, BMW Group Chairman, and CATL representatives formalized the deal during German Chancellor Friedrich Merz’s visit to Beijing.

This partnership extends a relationship that began in 2012 with battery procurement. It has since grown to include joint research and technological development. Now it encompasses institutional coordination for supply chain sustainability. The timing reflects broader patterns in the European automotive sector, where manufacturers face declining sales in China alongside mounting regulatory pressure in Europe.

For UK businesses involved in automotive supply chains or battery procurement, this development signals where the industry is heading. Carbon tracking requirements are tightening. Data exchange standards are becoming essential for market access. Companies that understand these shifts can prepare for similar expectations in their own operations.

CATL dominates global battery market with 39% share

CATL held 39.2% of the global EV battery market in 2025, with installed capacity reaching 464.7 gigawatt-hours. BYD came second with 16.4% market share and 194.8 GWh capacity. LG Energy Solution held 9.2% with 108.8 GWh. The gap between CATL and its nearest competitor is substantial, giving the Chinese manufacturer significant influence over battery supply chains and technical standards.

BMW has been working with CATL since 2022 under a long-term agreement for cylindrical battery cells. These cells power BMW’s Neue Klasse pure electric platform. CATL operates production facilities in China and Europe, each capable of producing up to 20 GWh annually. Production at these plants started in phases during 2025 and 2026.

The BMW Group has invested over 120 billion yuan (approximately £13.5 billion) in its Shenyang production base since 2010. This investment supports four research and development centers and three software companies in China. These facilities focus on electrification and digital manufacturing tailored to the Chinese market. BMW’s first China-made Neue Klasse model, a long-wheelbase iX3, will debut at the Beijing Auto Show in April 2026.

Meanwhile, BMW’s sales in China totaled 625,500 units in 2025. This represents a 12.5% decline from 825,000 units in 2023. Volkswagen experienced similar pressure, with sales falling 8% to 2.69 million units. These figures reflect broader challenges facing German manufacturers in the Chinese market, where local brands have gained ground in the electric vehicle segment.

Battery Passport framework addresses EU regulatory requirements

The memorandum focuses on pilot projects using the Catena-X standardized automotive data ecosystem. Catena-X provides a framework for sharing information across automotive supply chains while maintaining data security and commercial confidentiality. The Battery Passport builds on this infrastructure, creating a digital record of each battery’s carbon footprint, materials sourcing, and lifecycle data.

EU Battery Regulation requirements are driving this approach. The regulations mandate carbon emissions disclosure and traceability for batteries sold in European markets. Compliance is becoming linked to market access. Manufacturers must demonstrate the carbon intensity of their battery supply chains and provide verifiable data on materials sourcing and end-of-life recycling capabilities.

For battery manufacturers and vehicle producers, meeting these standards requires coordination across international borders. Raw materials often come from mines in one country, processing happens in another, cell manufacturing in a third, and final assembly in a fourth. Each step contributes to the total carbon footprint. Tracking this accurately demands shared data standards and trusted exchange mechanisms.

The BMW-CATL agreement does not involve new production capacity. Instead, it emphasizes full-lifecycle battery management and digital traceability. CATL confirmed the memorandum through its official WeChat account on February 27, 2026. The company highlighted its role in battery passport data collaboration and supply chain carbon footprint reduction.

Cross-border data exchange creates commercial and technical challenges

Moving battery data across borders involves both technical and regulatory hurdles. Different jurisdictions have varying requirements for data privacy, security, and commercial confidentiality. China maintains strict controls on data leaving its borders. European regulations require certain information to remain accessible for auditing and compliance verification.

The Battery Passport framework attempts to resolve these tensions by creating standardized data formats and trusted exchange protocols. However, implementation requires agreement on what data gets shared, how it gets verified, and who controls access. These questions have commercial implications. Battery manufacturers protect proprietary information about their manufacturing processes. Vehicle manufacturers need enough detail to verify carbon claims and meet regulatory obligations.

Pilot projects under the BMW-CATL agreement will test whether these competing interests can be reconciled. If successful, the approach could establish standards for other manufacturers and suppliers. Industry observers suggest that battery passport systems may eventually extend beyond carbon tracking to include materials sourcing, labor standards, and recycling capabilities.

For UK businesses supplying components or materials to automotive manufacturers, these developments carry practical implications. Supply chain transparency requirements are expanding. Companies may face requests for detailed carbon data about their products and processes. Those who can provide verified information will be better positioned to maintain relationships with major manufacturers. Those who cannot may find themselves excluded from supply chains serving European markets.

German manufacturers deepen Chinese partnerships amid market pressure

BMW’s agreement with CATL reflects a broader pattern of German automotive companies strengthening ties with Chinese partners. Mercedes-Benz announced deeper cooperation with Chinese firm Momenta on intelligent driving systems on February 26, 2026. These partnerships combine German manufacturers’ brand strength and engineering expertise with Chinese companies’ capabilities in electric vehicles, battery technology, and digital systems.

Oliver Zipse emphasized China’s importance to BMW’s strategy, stating that China is not only the largest automotive market globally but also a core force driving technological innovation and industrial transformation. He affirmed BMW’s commitment to operating in China, for China, and advancing with China. This language reflects the reality that success in the Chinese market increasingly requires local partnerships and localized products.

The partnerships also serve European objectives. German manufacturers face stricter emissions regulations and carbon reporting requirements at home. Working with suppliers who can provide detailed carbon data and low-emission production processes helps manufacturers meet these obligations. CATL has invested heavily in renewable energy for its production facilities and developed lower-emission manufacturing processes, making it an attractive partner for companies facing regulatory scrutiny.

However, these relationships create dependencies. European manufacturers rely on Chinese suppliers for critical components. This raises questions about supply security and industrial policy. Some European policymakers worry about strategic vulnerabilities in sectors considered essential for the transition to electric mobility. Balancing these concerns with commercial realities remains an ongoing challenge for automotive companies and governments.

Five key points about the BMW-CATL partnership

• BMW and CATL signed a memorandum of understanding on February 25, 2026, focusing on battery supply chain carbon reduction and trusted data exchange through the Battery Passport framework.
• CATL holds 39.2% of the global EV battery market with 464.7 GWh installed capacity in 2025, significantly ahead of competitors like BYD at 16.4% and LG Energy Solution at 9.2%.
• The agreement uses the Catena-X standardized automotive data ecosystem to enable cross-border information sharing while addressing data security and regulatory requirements in both China and Europe.
• BMW’s China sales fell 12.5% to 625,500 units in 2025, reflecting broader challenges for German manufacturers in the Chinese market despite substantial investments in local production facilities.
• The partnership addresses EU Battery Regulation requirements for carbon emissions disclosure and traceability, which are increasingly linked to market access for batteries and electric vehicles in European markets.

Supply chain transparency becomes competitive requirement

The BMW-CATL agreement demonstrates how supply chain carbon management is shifting from voluntary commitment to competitive requirement. Manufacturers serving European markets must provide detailed emissions data. Those serving public sector customers face additional scrutiny, as procurement policies increasingly favor suppliers with verified sustainability credentials.

For UK small and medium businesses, this creates both risks and opportunities. Companies that can document their carbon footprint and demonstrate progress on reduction targets will be better positioned for tenders and supply contracts. Those that cannot may struggle to meet qualification criteria. The challenge is particularly acute for businesses without in-house sustainability expertise or resources to invest in carbon accounting systems.

Carbon reporting requirements vary by industry and customer. However, common elements include measuring Scope 1 and Scope 2 emissions (direct emissions and purchased energy), calculating Scope 3 emissions from supply chains, and setting reduction targets aligned with science-based methodologies. Many businesses find Scope 3 calculations especially challenging because they require gathering data from suppliers who may lack sophisticated tracking systems.

The Battery Passport framework offers one model for addressing these challenges through standardized data formats and trusted exchange mechanisms. Similar approaches are emerging in other sectors. The key is creating systems that balance transparency with commercial confidentiality, provide verified data without excessive administrative burden, and enable meaningful comparison between suppliers.

Businesses should consider where they sit in supply chains serving sectors with tightening carbon requirements. Automotive is ahead of many industries, but construction, electronics, and consumer goods are following similar trajectories. Early action on carbon measurement and reduction can provide advantages as requirements spread. Waiting until customers mandate reporting puts businesses at a disadvantage compared to competitors who have already developed these capabilities.

Technical standards and data interoperability shape market access

The Catena-X data ecosystem represents an attempt to create industry-wide standards for automotive supply chain information exchange. Rather than each manufacturer developing proprietary systems, Catena-X provides common protocols and data formats. This reduces complexity for suppliers who work with multiple customers and makes it easier to verify claims about carbon footprints, materials sourcing, and production processes.

Data interoperability matters because modern supply chains involve dozens or hundreds of companies. A single vehicle contains components from numerous suppliers, each with their own sub-suppliers. Tracking carbon emissions or materials sourcing through these networks requires systems that can exchange information reliably and securely. Without common standards, each connection between companies requires custom integration work.

BMW and CATL are testing whether these standards can work across different regulatory environments. China and Europe have different rules about data privacy, security, and cross-border transfers. Finding approaches that satisfy both jurisdictions while enabling meaningful information exchange is technically and politically complex. Success would create templates for other international partnerships. Failure would force companies to develop separate systems for different markets, increasing costs and complexity.

For UK businesses, the lesson is that participation in supply chains increasingly requires technical capabilities for data exchange. This goes beyond simple email or spreadsheet sharing. It involves structured data formats, secure transmission protocols, and verification mechanisms. Businesses that invest in these capabilities will find it easier to work with large manufacturers and meet customer requirements. Those that rely on manual processes may struggle to provide the real-time, verified information customers expect.

Government sources on battery regulation and carbon reporting

The UK government provides guidance on carbon reporting requirements through several channels. The Department for Energy Security and Net Zero publishes resources on measuring and reporting greenhouse gas emissions. Their guidance covers both mandatory reporting for large companies and voluntary frameworks for smaller businesses.

Additionally, the Environment Agency offers information on environmental permits and emissions monitoring. While their focus is primarily on direct environmental compliance, they provide context on how reporting requirements are evolving across different sectors. Businesses serving automotive supply chains should review both UK requirements and EU Battery Regulation standards, as exports to European markets must meet EU rules regardless of UK domestic policy.

Industry bodies like the Society of Motor Manufacturers and Traders publish updates on regulatory developments affecting the automotive sector. They track both UK and international requirements, helping members understand how policy changes may affect their operations. For businesses supplying the automotive industry, monitoring these sources helps anticipate customer requirements before they become urgent.

Businesses looking for support with carbon reporting and ESG compliance can benefit from working with advisors who understand both technical requirements and practical implementation challenges. The key is moving from viewing carbon reporting as a compliance burden to seeing it as a source of competitive advantage in supply chains where sustainability credentials increasingly influence procurement decisions.