Hangzhou Longshan Chemical Co., Ltd. (hereinafter referred to as Hangzhou Longshan Chemical) is a wholly-owned subsidiary of Zhejiang Longsheng Group Co., Ltd. with a registered capital of 1484.76 million yuan. The company is located in Linjiang High tech Industrial Park, Qiantang District, Hangzhou City.

Hangzhou Longshan Chemical was founded in 1958 and was originally one of the first batch of thirteen county-level nitrogen fertilizer plants in China. Currently, it is the only combined alkali enterprise and the largest nitric acid enterprise in Zhejiang Province. It is a leader in technical standards and energy efficiency for combined alkali enterprises in China and also the setter of national standards for the nitric acid industry.