Xizi Clean Energy Equipment Manufacturing Co., Ltd. (referred to as XLZICE), established in 1955, was formerly Hangzhou Boiler Group Co., Ltd., a leading enterprise in China's waste heat boiler industry. Affiliated with Xizi UHC, one of china's top500 private enterprises, it is among the top 100 enterprises in the Chinese machinery industry, a national research and manufacturing base for waste heat boilers, a national high-tech enterprise, and a designated national enterprise technology center. It also hosts a national-level postdoctoral research workstation.

The company primarily produces gas turbine waste heat boilers, dry coke quenching waste heat boilers, waste incineration waste heat boilers, biomass boilers, gas boilers, circulating fluidized bed boilers, gas-fired boilers, pulverized coal boilers as well as power plant auxiliary equipment and nuclear power Class 2 and 3 vessels. It offers comprehensive services including design, manufacturing, installation, and commissioning, providing integrated solutions through models such as EP, EPC, BOT, and PPP. As the world's leading enterprise in gas turbine waste heat boilers, it achieves a waste heat utilization rate of 90.5%, at an internationally leading level. Several of its flagship products have consistently maintained the highest market share in China. Upholding its mission to "improve the environment for humanity," XIZICE (formerly Hangzhou Boiler Group) has produced over 3,300 sets of energy-saving and environmentally friendly waste heat boilers, which once fully operational, can save over 73 million tons of standard coal annually and reduce carbon dioxide emissions by 178million tons, accounting for 1% of China's total carbon emissions.

Additionally, with molten salt energy storage technology as its core, leveraging its extensive expertise and technological innovation in waste heat boilers, the company has formulated and implemented a "new energy + energy storage" development strategy. It has successfully established the first zero-carbon industrial park centered on new energy technology China's first zero-carbon aviation factory, and the first demonstration project for deep peak-shaving flexibility transformation technology and system solutions for large-scale thermal power units. Its participation in China's first batch of solar thermal demonstration projects was recognized as part of the national 2021 first-of-its-kind major technical equipment in the energy sector.