京能热力：公司主营业务为热力生产与供应、综合能源及节能技术服务

Core Viewpoint - Jingneng Thermal's main business focuses on heat production and supply, comprehensive energy, and energy-saving technology services [2] Group 1: Company Overview - Jingneng Thermal operates through its subsidiary Jingneng Huaqing, which holds a 34.58% stake in Tianjin Huaqing Antai Energy Technology Co., Ltd. [2] - The company is involved in the investment and operation of the Tianjin Zhonghuan DW plant energy station project [2] Group 2: Services Provided - The energy station project provides cooling and heating services for the photovoltaic monocrystalline silicon wafer production line [2] - It supplies high-temperature hot water for the slicing cleaning line and offers cooling and heating services for the office area [2]