Hangzhou Xiasa Hengsheng Chemical Co., Ltd. (hereinafter referred to as "Hengsheng Chemical") was founded in Hangzhou, Zhejiang in 1995. We are a dye manufacturer integrating R&D, manufacturing and sales, with a focus on dyes and dye intermediates. For over 30 years, acid dyes have been our core business, and we produce more than 200 dye varieties year-round.

For more than 30 years since its founding, Hengsheng Chemical has taken acid dyes as its core business, continuously improving the acid dye product system and expanding its business layout around dye-related fields. We produce more than 200 dye varieties year-round, including acid dyes, vat dyes, polymer dyes, inkjet dyes, and colour lakes for cosmetic and food applications. These products are used in silk, nylon, wool, leather, wood, personal care, agrochemicals, metal, plastics, paper and coatings.

Hengsheng Chemical adheres to the corporate philosophy of "Integrity, Diligence, Innovation, Win-win", and takes "a broad product range, consistent quality, competitive pricing, responsive service, and integrity in every transaction" as its business philosophy. The company continuously increases R&D investment, promotes product technological innovation and process optimization, and actively improves product performance and environmental protection. Meanwhile, the company attaches great importance to safety production and environmental protection, continuously improves the safety management system, actively promotes green manufacturing, and promotes the sustained and steady development of the enterprise.

While continuously promoting the R&D, production and sales of acid dyes, Hengsheng Chemical keeps improving its industrial chain layout and currently has the following subsidiaries:

1. Zhejiang Changsheng Technology Co., Ltd. — mainly engaged in the R&D, industrialization and market promotion of acid dyes.
2. Hangzhou Hengyu New Materials Co., Ltd. — mainly engaged in the R&D and project incubation of new materials and related intermediates; current projects include polyurethane monomer intermediates, plastic polymer nucleating agent intermediates, etc.
3. Hangzhou Lion Hitech Co., Ltd. — mainly engaged in the R&D, industrialization and market promotion of cosmetic and edible pigment lakes.
4. Chifeng Hengrong Chemical Co., Ltd. — mainly engaged in the production of pigment lakes and electronic chemicals.
5. Chifeng Hengxiang Chemical Co., Ltd. — mainly engaged in the production of textile dyes, oil-soluble dyes, polymer dyes and materials, and photoresist chemicals.
6. Hangzhou Hengcai New Materials Co., Ltd. — mainly engaged in the R&D, industrialization and market promotion of polymer dyes and materials.

After years of development, Hengsheng Chemical has formed a business system covering R&D, production and sales, continuously improving product structure and industrial layout, and providing customers with stable product supply and technical support.

Looking forward, Hengsheng Chemical will continue to base itself on the acid dye business, steadily promote the extension of the industrial chain and the development of new materials, adhere to innovation-driven development, serve customers with quality, continuously optimize product structure, improve production efficiency, and promote green manufacturing and sustainable development. The company will actively strengthen exchanges and cooperation with domestic and foreign customers and partners, continuously enhance comprehensive competitiveness, strive to create value for customers, and contribute to the development of the industry and society.