Zhejiang Xinhaitian Bio-Technology Co., Ltd. was founded in 1994, the company is located in Yuecheng District, Shaoxing City, Zhejiang Province, the factory covers an area of 30,000 square meters. After years of development, it has become a modernized professional enterprise integrating R&D, production, sales and service.

After more than 20 years of development, the company's business has spread to more than 40 countries/regions around the world, and the brand of “Zhejiang Xinhaitian” has been widely recognized by our customers. The main products are: Dimethyl Diallylammonium Chloride (alias: DADMAC/DMDAAC), with a design capacity of 50,000 tons, which has been certified by REACH of the European Union; Polydiallylammonium Chloride (alias: POLYDADMAC), with a design capacity of 35,000 tons, which has been certified by REACH and NSF.
Aldehyde-free color fixing agent, with a designed capacity of 30,000 tons, has obtained two patents of invention, namely: 01/ A kind of ternary copolymer high-efficiency aldehyde-free color fixing agent for reactive dyestuffs and its preparation method; Type: Patent of invention; Patent Announcement No.: CN115748271B; 02/ A kind of method of preparation of aldehyde-free color fixing agent and its production system; Type: Patent of invention; Patent Announcement No.: CN115677927B. Polyamine (epichlorohydrin dimethylamine) Copolymer) water treatment agent, production capacity of 15,000 tons, has passed REACH certification, NSF certification; polyquaternary ammonium salt series products (polyquaternary ammonium salt-6, polyquaternary ammonium salt-7, polyquaternary ammonium salt-22, polyquaternary ammonium salt-39); rapid penetration agent T (sodium polycuronate), designed capacity of 5,000 tons.

Among them: the core product “Dimethyl Diallylammonium Chloride (alias: DADMAC/DMDAAC)”, the main specifications: 60%, 65%; as one of the main domestic head manufacturers, breaking the foreign monopoly, independent research and development of the core technology of DMDAAC; the company also took the lead in drafting the first batch of the 2024 The company also took the lead in drafting the standard of “Dimethyldiallylammonium chloride” in the first batch of “Made in Zhejiang” standard cultivation program in 2024, standard number: “T/ZZB 3886-2024”. "Patent Name: A preparation method of dimethyldiallylammonium chloride and its preparation equipment; Authorization Notice No.: CN115521215B.

The products mainly cover eight major applications: water-soluble polymer chemicals, textile printing and dyeing chemicals, industrial water treatment chemicals, daily chemicals, paper chemicals, pesticide chemicals, leather chemicals and oil field chemicals, and other eight series of products.

Our company has obtained the following honors and qualifications: National High-tech Enterprise, Specialized Special New SME, Tax Credit A Grade Enterprise, 2023 Zhejiang Hidden Champion Cultivating Enterprise, Enterprise Technology Center, Science and Technology SME, ISO9001, ISO 14001, ISO 45001, ZDHC Certification, GOTS Certification, REACH Certification, NSF Certification, etc. We have also participated in many national standards or international standards, and have been awarded with the ISO9001 certification.

In addition, our company has participated in the drafting of many national standards or industry standards.

Emphasis on R&D and investment in science and technology has always been one of the main driving forces for Zhejiang Xinhaitian Bio-Technology Co., Ltd. to realize sustainable development. Up to now, our company has won a number of “invention patent authorization”.

Looking to the future, we have invested in a new generation of production bases (new factory: Zhejiang Hailian New Material Technology Co., Ltd.) in the Hangzhou Bay Shangyu Economic and Technological Development Zone, a national industrial park, and the project is nearing full completion, which will have an annual production capacity of 250,000 tons of various types of polymer fine chemicals. The new factory will start construction on November 18, 2025, with a large increase in production capacity and an increasingly obvious scale effect.

Since its establishment, the company has always followed the development idea of “market-oriented, science and technology-based”, adhering to the business purpose of “quality first, reputation first, user first”, establishing long-term friendly cooperation with enterprises from all walks of life around the world, and providing customers with the best quality products at the most favorable prices. To provide customers with the best quality products, the most favorable price and the most satisfactory service, and the majority of customers to seek common development, win-win cooperation.

We sincerely look forward to cooperating with you!

Official Website：https://www.sxhtzj.com/en/index.html