Nanjing Weichi Chemical Co., Ltd., restructured from the former Feichi Chemical Additives Plant(Nanjing), is the sole domestic manufacturer of high efficient Antioxidant 44PD(namely Antioxidant 4720, N,N'-di-sec-butyl-1,4-phenylenediamine). With advanced production techniques and complete testing methods, we have independently developed Antioxidant 44PD, which, with world top quality, has supplied a gap in China. Upholding the tenet of "Honesty and Innovation", and keeping to the principle of "Quality First, Service Foremost", we provide high quality products and services to oil refining companies and manufacturers of auxiliary agents from around the world, and we are ready to strengthen our exchanges and cooperation with our partners home and abroad. Located in Hengxi Town, Jiangning District, Nanjing, the company is close to Jiangning Development Area and Lukou Airport, enjoying a superior location. And your visit is always most welcome!