From Tesla to Mercedes: ranking of electric cars with most sustainable supply chain in 2026

©Michael Satterfield via Unsplash

When it comes to electric cars, public debate almost always revolves around range, charging stations or performance. But the real revolution - which determines whether the mobility of the future will truly be sustainable - takes place much earlier than the moment when a car goes out on the road.

After all, it all starts in the mines where the minerals for the batteries are extracted, in the steel mills that produce the structural materials, and in the factories where parts from around the world are assembled. It's in the global automotive supply chains that it becomes clear how much distance there is between fine environmental promises and actual change. To gauge the extent to which large companies are really transforming their production chains, the international network Lead the Charge publishes an annual ranking analyzing the behavior of the leading electric car manufacturers.

The new 2026 edition of the Lead the Charge Auto Supply Chain Leaderboard tells a nuanced story: some companies are taking concrete steps toward cleaner and more responsible chains, while others are lagging behind. At the same time, the very European rules that have made this progress possible are under pressure.

The ranking of electric car supply chains

According to the 2026 ranking, Tesla is the company with the highest overall score, with 49%. Right behind it is Ford, with 45%, and Volvo, which comes in at 44%. The top five is completed by Mercedes-Benz and Volkswagen, a sign that several European manufacturers are determined to make their supply chains more sustainable.

The ranking covers 18 major automakers and assigns a percentage to each reflecting their success in building cleaner, more transparent and human rights-based supply chains.

The ranking order is as follows: Tesla in first place, followed by Ford and Volvo. Mercedes-Benz and Volkswagen are fourth and fifth, respectively, while BMW and Renault are still among the first seven producers despite this. This is followed by the Chinese group Geely, Hyundai and General Motors. In the middle ground we find Kia and Stellantis, followed by Nissan and BYD. At the bottom dangle Honda, Toyota and China's state-owned groups GAC and SAIC.

However, the most striking finding has to do with the average ambition level of the entire industry. The average overall score of the companies surveyed is only 25%, and no manufacturer exceeds 50%. That means the transformation of industrial chains has only just begun, although analysts stress that if industry best practices were widely adopted, scores could reach 86%.

The rankings are compiled by the international network Lead the Charge, which brings together environmental organizations, human rights groups and investors committed to the energy transition. Members include organizations such as Sunrise Project, Rainforest Foundation Norway, Human Rights Watch, Public Citizen and Transport & Environment.

Low-emission materials, transparency and protection of local communities

The 2026 analysis shows some encouraging signs. Some manufacturers are beginning to pull their industrial weight to make the most polluting materials in vehicle production more sustainable.

Steel and aluminum are among the most energy-intensive components in the auto industry. That is why companies such as Volvo and Mercedes-Benz have begun to invest heavily in developing low-emission materials, which are already being used in new electric models such as the Mercedes CLA and the Volvo ES90.

Another element that's changing is the level of information transparency. Car manufacturers are beginning to publish more detailed and disaggregated data on their production chains, allowing investors, governments and citizens to better assess actual progress.

The Chinese group Geely, for example, makes public how much low-emission steel and aluminum is used in various models, while companies such as Mercedes, Volkswagen and Tesla have begun to publish comprehensive reports on the raw materials in their batteries, such as lithium, cobalt and nickel.

Those reports also state what measures are being taken to reduce the environmental impact of mining activities, from water management and waste disposal to preventing damage to local ecosystems.

In recent years, moreover, attention is increasing towards the rights of indigenous peoples, many of whom live in areas where critical minerals are mined. In 2023, only six companies had targeted initiatives in this area. Now that number has doubled, with 12 of the 18 automakers working on policies to better protect these communities.

Progress in the electric supply chain hinges on European rules

One of the most striking points in the ranking is the role of European regulations. Much of the progress in recent years has not come about spontaneously, but has been driven by clear rules.

For example, the European Battery Regulation imposes significantly stricter obligations on producers of electric cars than for internal combustion engine vehicles. Companies must map the entire supply chain, monitor their suppliers, ensure battery recycling and monitor the use of critical minerals.

These rules have prompted many companies to improve the traceability of their chains and become more transparent. At the same time, the rapid rise of electric cars is creating new opportunities for the use of low-emission steel and aluminum, materials that can significantly reduce the climate impact of the automotive industry.

(©Lead the Charge Auto Supply Chain Leaderboard via GreenMe.it 2026 / Managing Editor: Julie Morgan - The Press Junction /Picture: picture alliance / CHROMORANGE | Michael Bihlmayer)