Technical Advantage
Our primary company and main manufacturing base―Qingdao Changrong Chemical Technology Co., Ltd., is located in Pingdu Xinhe Ecological Chemical Technology Industry Park in the city of Qingdao. The manufacturing district has a special wastewater treatment plant, a power plant, and a steam generating plant. These modern infrastructures were built to ensure that all the industrial activities will not be interrupted by any factor, and that all chemical production within the district is environment-friendly. Changrong has a plant size of 570,000 sq.•ft. We now have four independent advanced production lines. The diligent and scrupulous operators are well trained with technical knowledge, discipline and solidarity. The manufacturing department guarantees that your orders will be delivered on time with premium quality.
All of our products are ISO 9001 and ISO 14001 certificated for QMS and EMS. Halogen-free phosphorus flame retardant is our specialty. The main products include Ammonium Polyphosphate, Triphenyl Phosphite, Triphenyl Phosphate, Diisooctyl Phenyl Phosphite, Isopropylphenyl phosphate, 2-Ethylhexyl diphenyl phosphate, Bisphenol-A bis (diphenyl phosphate), Phosphoric acid tris(2-chloro-1-methylethyl) ester, Tris(2-chloroethyl) phosphate, Tri(butoxyethyl) phosphate, etc. In addition to the phosphorus flame retardant, we are also able to customize different solution for you. Other products such as Alumina Trihydrate, Brominated flame retardants can also be found in our inventory.
Our R&D team has two chemical engineering doctors and several specialists with master’s degree. All of the team members have been working in the chemical industries for more than ten years. Aside from the independent R&D team, we have established cooperative relationships with Qingdao University of Science and Technology. There are two professors currently working on our product developments. Innovation distinguishes between a leader and a follower. We commit to the research, innovation, and improvement of fine chemical products, which ultimately makes each delivery go beyond customers’ expectation. In addition, H&HAN technical support team is available for troubleshooting 24/7. We will always at your service regarding any concern or question about product application.
We have already received high reputations from domestic clients for strong technical force, advanced production technology, complete inspection methods, and quality assurance system. And now, H&HAN is trying to bring the service to the world. Making a satisfied client is our business strategy. Your satisfaction means everything to us.
