Presophia (Xiamen)Material Technology CO., LTD was formerly known as Xiamen Kerns Cold Heading Products Co., Ltd., which was established in 2013. Due to the needs of business development, Presophia company was registered in 2018 and moved to the new location. Our factory spans 1,500 square meters, and the capacity of the factory is 500 tons per year. There are 43 co-workers in our company. We are professional and passionate about the production and sales of components of high-end bicycle derailleur gears.

Based on the unremitting efforts of all colleagues, we have become the leading supplier of the top three chain factories in the world. Our clients highly recognize the quality of our products, and our annual production of spare parts is equal to 10 million pieces of chain by converted into chains (each chain has 114~116 links), accounting for 65% of the world's annual output.