Our product portfolio covers bactericidal and antiseptic chemicals, antibacterial and mildew-proof agents and functional fine chemicals, widely used in healthcare, personal care, water treatment, textiles, coatings and plastics industries. Backed by strong R&D capabilities, advanced production facilities and a rigorous quality control system, we deliver high-quality products and professional technical services to customers worldwide.
Founded in 1988, our Tianjin production base-Tianjin Kewei Jinhong Environmental Protection Technology Co., Ltd.-provides robust support for our technological innovation and market expansion, creating a powerful R&D-plus-production synergy.

Development History
How we started

1988
The Tianjin Production Base-formerly known as the "Jinhong Chemical Plant of the CNOOC Tianjin Chemical Research Institute"-was established, laying the foundation for our technical expertise.

2011
The Tianjin Production Base was restructured and renamed "Tianjin Kewei Jinhong Environmental Protection Technology Co., Ltd."

2014
Hebei Jinhong Chemical Co., Ltd. was established, leading to the creation of the Hebei Tangshan Production Base.

2020
Annual production capacity surpassed 50,000 tons, and the company served over 5,000 clients.

2024
Annual production capacity reached 100,000 tons, and the company held 33 patented technologies.
Corporate Strength
- 38 years of dedication to the antibacterial and mildew-proof industry
- Production base area: 27,000 square meters
- Annual production capacity: 100,000 tons
- 33 patented technologies
- Serving over 10,000 global customers
- More than 200 industry application cases
- Coordinated operation of 3 major production bases

Factory Introduction

1. Hebei Jinhong Chemical's core manufacturing base is located in Nanpu Chemical Park, Caofeidian, Tangshan. It covers 27,000㎡ with 5,800㎡ of building area, has an annual production capacity of 100,000 tons, and enjoys convenient maritime export access adjacent to Tianjin Port.
2. The plant is equipped with 15 operational 5-ton reaction kettles, 10 standby 5-ton reaction kettles, and 20 10-ton reaction kettles.
3. Supporting production facilities include advanced drying equipment, rectification tower systems, automatic packaging lines and a storage tank farm.
4. The factory is built with Class A workshops and warehouses (meeting national petrochemical Class A standards), Class E workshops and warehouses, and an independent R&D building.
5. The company holds ISO 9001:2015 Quality Management System and ISO 14001:2015 Environmental Management System certifications. It implements full-process quality inspection covering raw materials, production and finished products, with an in-house testing lab, complete batch traceability system and long-term third-party testing partnerships.
6. The company has a 30-member professional R&D team and maintains cooperative relations with Nankai University, Tianjin University and other institutions through two joint research centers. It operates a 20,000-ton annual output pilot base for functional fine chemicals and masters dynamic vulcanization technology for TPE/TPV products.

Service System
Custom Formula Service
Beyond standard products, we offer customized formula development tailored to customer needs. Our end-to-end service includes in-depth analysis of application scenarios and performance requirements, optimal formula design by our R&D team, small-batch sample production for customer testing, performance verification with antibacterial/mildew-proof test reports, and full support for mass production scaling.
Testing Service
We provide professional testing services, including antibacterial performance tests (bacteriostatic and bactericidal rates), mildew resistance tests (mildew grade evaluation), safety tests (skin irritation and toxicity), and stability tests (heat and light resistance).
Technical Support
We offer full-process technical support to customers. Pre-sales: product selection and application guidance; in-sales: process parameter recommendation and on-site troubleshooting; after-sales: usage effect follow-up and continuous optimization support.
Quick Response Commitment
We uphold a strict quick-response service commitment: technical inquiries answered within 24 hours, samples and customized solutions delivered within 48 hours, and bulk orders shipped within 7 days.
Core Strengths




Comprehensive Competitive Advantages
As a benchmark manufacturer of PHMG and PHMB in China, we hold a leading industry position. With an annual production capacity of 100,000 tons, we can meet large-volume purchasing demands. Backed by 33 patented technologies, we maintain continuous technological innovation.
We have obtained dual ISO certifications and implement full-process quality control to ensure stable product quality. We offer customized formulas to meet personalized customer requirements, deliver solutions within 48 hours and achieve mass production within 7 days.
We provide one-stop services including formula development, testing and technical support. With years of foreign trade experience, we are well-versed in international regulations to support seamless overseas cooperation.
Product Advantages
The guanidine antibacterial agents feature a complete product range, high purity and low impurity content. Consistent quality is guaranteed across different batches. The products offer excellent cost performance, accompanied by authoritative test reports and international certification documents.
Service Advantages
The company provides one-stop solutions covering raw materials and formula customization. A professional technical team offers full-process support. Flexible customized development capabilities and efficient response mechanisms are available to meet customer demands in a timely manner.
Cooperation Advantages
The company ensures long-term and stable product supply with a transparent pricing system. It maintains sound business credibility and provides sustainable technological innovation support for partners.
