Core Viewpoint - The lithium battery concept stocks in the Hong Kong market experienced a significant increase, with notable gains from several key companies [1] Group 1: Stock Performance - Tianqi Lithium Industries saw a rise of 13.15%, reaching a latest price of 50.850 and a total market capitalization of 83.456 billion [2] - Ganfeng Lithium increased by 11.82%, with a latest price of 48.240 and a market cap of 99.239 billion [2] - BYD Electronics rose by 5.08%, with a latest price of 43.440 and a market cap of 97.879 billion [2] - Contemporary Amperex Technology (CATL) increased by 4.55%, with a latest price of 597.500 and a market cap of 2.73 trillion [2] - Other companies such as Ruixin Holdings, China Graphite, BYD Company, and others also showed positive performance, albeit with lower percentage increases [2] Group 2: Year-to-Date Performance - Tianqi Lithium Industries has a year-to-date increase of 111.43% [2] - Ganfeng Lithium has a year-to-date increase of 141.98% [2] - Contemporary Amperex Technology (CATL) has a year-to-date increase of 128.14% [2] - BYD Company has a year-to-date increase of 28.69% [2] - Other companies like Ruixin Holdings and China Graphite have shown mixed year-to-date performance [2]