Hengsheng Energy Co., Ltd engages in coal-fired thermal power business in China. The company provides steam to paper mills, textile printing and dyeing, food and dairy, home furnishing manufacturing and other enterprises in the park; and electricity to the terminal power users of the state grid. It is also involved in the cogeneration business; the CVD diamond business, which includes single crystal and polycrystalline diamonds; and terminal products are mainly lab-grown diamonds, heat sinks, and diamond cutting tools. In addition, the company offers biomass thermal power generation, photovoltaic power generation, and coal trading, and provides manufacturing equipment, environmental protection technology, and investment consulting services. The company was formerly known as Zhejiang Longyou Hengsheng Heating Co., Ltd. Hengsheng Energy Co., Ltd was founded in 2007 and is headquartered in Quzhou, China.