Zhejiang Longsheng Group is the world's largest producer and service provider of textile chemicals (dyes, auxiliaries, intermediates, etc.). Its main businesses include dyes, intermediates, water reducing agents, inorganic chemicals, etc., while investing in ByteDance (Tiktok) bilibili、 Didi, Today's Headlines, Unicorn MSCI、 Many fields such as biomedicine. Longsheng Group was founded in 1970 and has now developed into a global listed company integrating manufacturing, real estate, financial investment and other diversified businesses. It was successfully listed on the Shanghai Stock Exchange on August 1, 2003 (stock code 600352), becoming the first listed enterprise in the dye industry. Longsheng Group has nearly 10000 employees and nearly 100 subsidiaries, located in more than ten provinces and cities such as Zhejiang and Shanghai, as well as overseas regions such as Singapore, Germany, the United States, and India. It ranks among the top 500 Chinese enterprises, the top 500 Chinese private enterprises, the top 500 Chinese manufacturing companies, and the top 100 Chinese petrochemical companies.

Hangzhou Longshan Chemical Co., Ltd. is a wholly-owned subsidiary of Zhejiang Longsheng Group. It is a comprehensive chemical enterprise specializing in the manufacturing of synthetic ammonia, soda ash, ammonium chloride, nitric acid, and nitrate. Founded in 1958, it was originally one of the first thirteen county-level nitrogen fertilizer plants in China, with a registered capital of 1.48476 billion yuan. The company is located in Linjiang High tech Industrial Park, Qiantang District, Hangzhou, covering an area of nearly 800 acres.

The company currently has a production capacity of 220000 tons/year for synthetic ammonia, 400000 tons/year for soda ash, 450000 tons/year for ammonium chloride, 100000 tons/year for nitric acid, and 30000 tons/year for nitrate. It is the only joint alkali enterprise, agricultural ammonium chloride enterprise, and the largest nitric acid enterprise in Zhejiang Province.

The company adheres to the principle of talent first, technology as the core, innovation as the driving force, and market orientation, aiming to become a leader in the inorganic alkali industry in Zhejiang market. Currently, it is the leader in technical standards and energy efficiency for national alkali enterprises, as well as the developer of national standards for the nitric acid industry. The company takes soda ash, ammonium chloride, and nitric acid as its pillar industries, and further expands and derives products such as heavy soda ash, food additive sodium carbonate, food additive sodium bicarbonate, agricultural ammonium chloride, industrial ammonium chloride, dry ammonium, concentrated nitric acid, various specifications of dilute nitric acid, sodium nitrate, sodium nitrite, food additive sodium nitrate, and food additive sodium nitrite. For over 60 years, with high-quality products and services, we have gained recognition and trust from our customers and friends. Our leading products, soda ash and nitric acid, account for more than one-third of the market share in Zhejiang, while ammonium chloride accounts for more than half of the market share. Our company has registered trademarks under the "Jiangfan Brand" and "Zhijiang Brand", with "Jiangfan Brand" soda ash and "Zhijiang Brand" agricultural ammonium chloride being well-known products in Zhejiang Province, and the "Zhijiang Brand" trademark being a famous trademark in Zhejiang Province.