CATL and SERES sign a long-term cooperation to speed up battery capacity in Chongqing beyond 20 GWh a year

CATL

CATL and SERES signed a long-term strategic cooperation agreement on October 10, 2026, in Chongqing. It formalises a supply relationship that already covers all AITO models, which have delivered more than 1.2 million units to date, and commits both companies to more production capacity and to overseas expansion.

• Phase 2 of the 'Plant in Plant' project at SERES's Super Factory is to be accelerated, at a planned 10 to 12 GWh a year.
• Combined capacity of both phases is expected to exceed 20 GWh a year.
• The deal also covers supercharging networks and battery services, and joint pursuit of Europe, the Middle East and Central Asia.
• No financial terms, investment amounts or Phase 2 completion dates are given.