On May 29, CATL (03750.HK) rose 3.07% in regular trading, trading at HKD 736.0 per share, with trading volume reaching HKD 814 million.

On the news front, Eastern European enterprise Solarpro Holding and CATL's jointly developed 601MWh large-scale energy storage project in Bulgaria successfully achieved grid connection and commenced operations. The project effectively raised Bulgaria's national energy storage installed capacity by approximately 15%, significantly increasing the share of wind and solar energy in the local energy mix while ensuring stable and secure power system operations.

Based on this collaboration, Solarpro Holding and CATL have reached a long-term cooperation agreement, planning to further expand energy storage project scale within the next two years. Additionally, CATL previously signed a 3-year, 60GWh sodium-ion battery strategic cooperation agreement with Haibosi Chuang, representing the world's largest sodium-ion battery order to date, signaling accelerating commercialization of sodium battery technology. The company's energy storage business continues to gain momentum across multiple geographies.

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