Group 1 - The core viewpoint of the news is that lithium battery stocks in Hong Kong experienced a collective surge, driven by rising production costs and anticipated price increases for battery products due to higher raw material prices [1] - Domestic lithium battery manufacturer Dejia Energy announced a 15% price increase for its battery series starting December 16, citing continuous rises in upstream raw material costs [1] - Huatai Securities' research report indicates that lithium battery production in December is expected to increase month-on-month, with a sustained positive outlook and rising capacity utilization across multiple segments [1] Group 2 - Companies such as Ganfeng Lithium and Tianqi Lithium saw stock price increases of over 4%, while CATL rose by 3.5% [2] - Other companies in the sector, including Hongqiao Group, Zhongchuang Innovation, BYD Electronics, Chaowei Power, and Tianneng Power, also experienced stock price increases [2] - CICC's research report expresses optimism for a new upward cycle in lithium batteries by 2026, with energy storage expected to be a key driver [1]