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About Us

GMP Manufacturer of Amino Acids

Wuxi Jinghai Amino Acid Co.,Ltd.

Wuxi Jinghai Amino Acid Co., Ltd. ( brand: Aminowill ), was founded in 1995, located in Wuxi City, Jiangsu Province of China, is one of the largest manufacturers of amino acids in China.

Aminowill uses advanced fermentation technology to produce all kinds of food & pharmaceutical ( APIs ) grade amino acids. All our production processes observe the strict standards and rules of GMP. A continuous quality control and quality assurance and our industrial hygienic practices guarantee absolute purity and highest efficiency of all our products.

Aminowill Certifications:


Advanced Fermentation Technology + High Quality + Rich Kinds Amino Acids = Aminowill core competitiveness

1+1 Production Bases
Meet the production requirements of various specifications of amino acids

Two major production bases are located in Donggang Town, Wuxi City, Jiangsu Province. 

There are 3+4 high-end automatic amino acid production lines.  

With international leading fermentataion technologies, realize the industrialized production of high-end and high value-added amino acid products. Meet the production requirements of various specifications of amino acids. 

Products Quality Standard: Meet with current CP/EP/USP/JP/FCC.

Honor & Certifications
GMP Cert
ISO 14001
ISO 45001
High-tech enterprise certificate
2021 Jiangsu Province Little Giant Enterprise
Director unit
Association for Science and Technology
Innovative enterprise
Advanced collective of fermentation industry work
Science and Technology Progress Award
An internationally renowned brand cultivated by Jiangsu Province
Outstanding Contribution Award
2018 Jiangsu Science and Technology Award
Demonstration enterprise
Demonstration enterprise of energy saving and emission reduction
Credit Management Demonstration Enterprise
Jiangsu famous trademark certificate
Since 1995, we focus on amino acids.
Gained Chinese pharmaceutical GMP certification
Became the first amino acids manufacturer which gain Chinese pharmaceutical GMP certicication in China.
Completed the registration of 14 amino acid APIs
Got API registration for total 14 kinds of amino acids from 2002 to 2006.
New workshop built
Built Line #2 refining workshop and passed the new Chinese GMP certification (version 2010)

Passed ISO 9001 & ISO22000 by SGS

Pass FDA inspection
Successfully passed US FDA's onsite inspection with zero defect.
Joint-stock enterprise
The company changed to a joint-stock enterprise.
New Rooms & Warehouse
Built a new strain room and microbiological lab which met EU GMP standards;
Built a new 6000m3 warehouse
Pass GMP again
Gained new version GMP certification;
The line#1 refining workshop transformed, +20% capacity
Get CEP certifications
Tow main products L-Isoleucine and L-Valine get EU CEP certifications.
DMF documents
Completed the preparation of 14 Amino Acids DMF documents.
New Factory
Begun the construction of high value-added amino acid production base which costs about CNY 600 million.
Passed ISO14000,45001&50001;
Successfully IPO in Beijing Stock Exchange.
Enterprise Culture
*SMETA*   *ECOVADIS*     *ESG REPORT*     *Greenhouse gas emissions report*     *UNGC*
Social Responsibility
Attach importance to product research and development and investment, and strengthen industry university research cooperation
  • Social Responsibility and Public Welfare

  • Protect Employee Rights

  • Public Relations and Public Welfare

  • Protection of the Rights of Suppliers, Customers and Consumers

  • Sustainable Development

  • Social Responsibility and Public Welfare
    Take the corresponding responsibility for creating a harmonious society
    Jinghai has always attached importance to the realization of our enterprise social values. Through adhering to our enterprise mission of "Providing Values for Our Customers, and Taking Corresponding Responsibilities for Creating A Harmonious Society", we have kept pursing the harmonious development of the enterprise and our employees, suppliers, customers, investors and society in practice, ,practiced our social responsibilities, promoted environmental protection, resource conservation and recycling, and participated in social welfare and charity.
  • Protect Employee Rights
    Jinghai has attached great importance to the protection of employees' rights
    Jinghai has attached great importance to the protection of employees' rights, and has established the employee supervisor selection system in accordance with the Company Law, the Articles of Association and other provisions, so as to ensure employees to enjoy full rights in corporate governance; supported trade union to carry out its work according to law, and cared about and valued the reasonable demands of employees. Furthermore, we have also made a lot of efforts in employee satisfaction construction and team building, to further improve the level of employee welfare, reflecting Jinghai Enterprises' concern for employees and human-based management.
  • Public Relations and Public Welfare
    Jinghai has actively participated in social welfare undertakings
    Jinghai has actively participated in social welfare undertakings, with an aim to create conditions for social harmony and stability. We have kept caring for employees in difficulties as well as caring and loving the lives of our employees, created jobs and provided certain positions for the disabled, in order to promote the construction of a harmonious society. Moreover, we have actively fulfilled our public welfare responsibilities and actively participating in social donations.
  • Protection of the Rights of Suppliers, Customers and Consumers
    Jinghai has insisted on providing customers with high-quality products and satisfactory services all the time
    Jinghai has insisted on providing customers with high-quality products and satisfactory services all the time. We have already formed a complete set of quality assurance system, and carried out strict management and control in accordance with the requirements in the production process, thus to fundamentally guarantee the quality of our products.
  • Sustainable Development
    Safety Management
    Safety policy: Safety-first, prevention-focused, people-oriented continuous improvement.
    Safety purposes: Care for life, and keep safety first; follow the rules and disciplines begin with me; I'm clear about safe practices, and will keep safety.
    Safety management system: Jinghai has introduced, implemented and passed the OHSAS18000 occupational health and safety management system certification. We have been committed to complying with laws, regulations and other requirements, actively abiding by law, and reducing or eliminating occupational safety risks, in order to ensure to provide all our employees with a working environment that meets occupational health and safety requirements.
    Occupational health and safety management:Jinghai has formulated the Occupational Health Management Procedure and the Occupational Health Monitoring Operation Guide according to the regulations, measures and rules regarding occupational health and safety management, and taking into consideration of the actual situation of the company, so as to protect the occupational health and safety of our employees in the production process.
    Safety production accidents and emergency management: Jinghai has set up a full-time emergency rescue team to deal with the occurrence of unexpected accidents. We have carried out regular emergency exercises each year, and in the meantime, made reasonable arrangements as to the staffs, machines, supplies and materials on the production site, and implemented fixed management, so as to ensure a safe and orderly working environment.
Investor Relations
Investment Hotline:+86-510-88350255-8018