-- CATL and Solarpro Technology AD (Solarpro) today announced the signing of a strategic cooperation agreement for 2 GWh sodium-ion systems. Leveraging the technology's unique advantages in low-temperature performance and long cycle life, CATL and Solarpro will explore sodium-ion storage solutions tailored to diverse application scenarios across Central and Eastern Europe. The two companies aim to commission the first sodium‑ion energy storage project in Central and Eastern Europe. We look forward to the successful implementation of the first sodium-ion battery project in Central and Eastern Europe." In May 2026, through joint efforts, the two companies have successfully connected a 602 MWh large-scale battery energy storage project to the national power grid in Bulgaria, increasing the country's total energy storage capacity by 10%.