Group 1 - Gree Electric Appliances has committed to not raising prices on household air conditioners and has no plans for "aluminum replacing copper" [1] - This decision may put short-term pressure on the company but is expected to strengthen brand premium and user loyalty in the long run, benefiting the high-end market [1] Group 2 - In 2025, the South China Grid's "West-to-East Power Transmission" is projected to reach a record high of 2,616 billion kilowatt-hours, exceeding 311 billion kilowatt-hours compared to 2020 [2] - This increase will support electricity load in Guangdong, reduce manufacturing electricity costs, and accelerate the rise of clean energy, solidifying the energy foundation for regional high-quality development [2] Group 3 - A medium-sized composite wing drone developed by a company in Zhongshan has recently received a type certificate from the Civil Aviation Administration of China, marking it as the first unmanned aerial product globally to meet airworthiness requirements in its category [3] - This achievement is expected to enhance Zhongshan's position in the drone industry chain and promote the localization of core components such as flight control and power systems, aiding the rapid development of the low-altitude economy in the Pearl River Delta [3] Group 4 - In December 2025, the number of building sale contracts in Hong Kong reached 8,999, reflecting a year-on-year increase of 63.3% and a month-on-month increase of 26.4% [4] - The total value of contracts was 65 billion HKD, with a year-on-year increase of 52% and a month-on-month increase of 11.3%, driven by factors such as US interest rate cuts, favorable conditions for Hong Kong stocks, and an influx of high-level talent [4] Group 5 - The Shenzhen Component Index closed at 13,828.63 points, up 2.24% [5] Group 6 - The top gainers in the Shenzhen market included *ST Tianlong at 5.39 CNY with a rise of 20.04%, Zhite New Materials at 13.42 CNY with a rise of 20.04%, and Daoshi Technology at 26.99 CNY with a rise of 20.01% [6] - The top losers included Qidi Design at 11.67 CNY with a drop of 16.74%, Anlian Ruishi at 76.00 CNY with a drop of 13.64%, and Shandong Zhanggu at 9.62 CNY with a drop of 10.01% [6]