Group 1 - The core point of the article is the announcement of a public tender by Shenyan Jiao Coal Jixi Shenglong Mining Co., Ltd. for a project involving ultra-low temperature air source heat pump construction for heating, bathing, and swimming pool facilities [1] - The budget for the project is set at 2.23 million yuan [1] - Shenyan Jiao Coal Jixi Shenglong Mining Co., Ltd. is partially owned by China Cinda, holding a 16.40% stake in the company [1]