IONCHI, the premium high-power charging joint venture established by BMW and Mercedes-Benz in China in 2024, has announced that SERES Group will join as an equal shareholder. Through the investment, SERES’ premium brand AITO becomes part of the three-party network, giving BMW, Mercedes-Benz and SERES each a 33.3% stake. The transaction is subject to regulatory approval.

IONCHI operates public high-power charging stations at prime urban locations across China, powered by 100% renewable energy. The network offers premium services to all eligible EVs, with online reservation and priority power allocation reserved exclusively for customers of the three OEM brands.

AITO, SERES’ luxury EV line, has surpassed one million cumulative users and was the best-selling Chinese luxury car brand domestically in 2025. Adding SERES as an equal partner gives the network a third OEM driving geographic expansion, network density and service development alongside the two German brands.

Source: Seres Group