Shanghai Letian Calcium Titanium Optoelectronic Technology Co., Ltd. was established in January 2023 and is a technology enterprise under Shanghai Dongjian Digital Energy Group that focuses on the research and development of perovskite solar cells. The company focuses on the research and development of new technologies and processes, and is committed to the development of efficient, stable, low-cost, and large-scale perovskite solar cells. The company has a doctoral and master's team dedicated to the research and development of perovskite solar cells, and has established close cooperative relationships with top universities and research institutes in China, providing strong academic and technical support for the company's development. The company will complete a 100MW pilot line by the end of 2023 and plans to achieve mass production of battery components by 2025. The company's future vision is to become a core infrastructure provider and service provider of new energy, making important contributions to the country's "carbon peak and carbon neutrality".