About Us
Company Profile
Guangxi Visem Group
Guangxi Visem Group combines in-house R&D expertise with advanced quality control to deliver reliable, high-performance products to global partners—backed by consistent quality, customized solutions, and competitive value.
We operate two specialized manufacturing facilities, each reflecting our commitment to innovation, quality, and industrial excellence.
HAVET Biochemical Co., Ltd.
Our modern, GMP-certified facility specializes in the R&D and production of premium biological raw materials for animal health and pharmaceutical applications. Core products include Iron Dextran, GLETOFERRON®, Dextran Sulfate Sodium Salt, and custom molecular-weight dextrans—trusted by customers worldwide.
Our products key strengths:
-High purity with minimal impurities
-Exceptional batch-to-batch consistency
-Full compliance with USP, BP, EP, and CP pharmacopoeial standards
-Supported by proprietary technology and end-to-end quality management, we offer flexible MOQs, tailored specifications, and reliable long-term supply.
Guangxi Colofo New Material Co., Ltd.
Colofo is a wholly-owned subsidiary of the Institute of Advanced Functional Materials, which is among the first group of directly affiliated research institutes under the Guangxi Industry Technology Research Institute (GITRI). The Institute serves as an integrated innovation platform dedicated to core technology breakthroughs, scientific (technology commercialization), and professinalized scientific and technological services.
Leveraging this strong institutional foundation, Colofo focuses on the industrial application of advanced materials in energy & environmental protection, biomedicine, and functional materials—bridging cutting-edge research with real-world impact.
Our core products include:
-Aluminum Tripolyphosphate: High whiteness, excellent dispersion, strong anti-corrosion performance, and eco-friendly—widely used in coatings, fillers, putties, plasters, modeling clay, adhesives, sealants, inks, and toners.
-Zinc Phosphate: Produced with refined technology for fine particle size, superior compatibility, and outstanding rust-inhibition—ideal for water-based and oil-based anti-corrosive paints. Extensively applied in marine vessels, steel structures, automobiles, bridges, containers, and industrial machinery.
Custom product specifications are available upon request.
We believe in transparency, partnership, and shared progress. You’re always welcome to visit our R&D centers and production sites—to see our capabilities firsthand and help shape our future together.
Our Certifications
ISO 9001 Quality Management System Certification Certificate Has obtained the ISO 9001 Quality Management System Certification
REACH Registration certificate Has obtained EU certification and meets the standards for export to the European Union.
