Glad to take this chance to introduce our self as a leading manufacturer and exporter in China. Our company -- Zhejiang Jiashan Chengda Pharm & Chem Co., Ltd. as the No.1 supplier of L-carnitine series in China, and the annual production capacities of Carnitine derivatives are more than 300ton. The factory is ISO9001-2000 certified, and all the carnitine derivatives are Kosher and Halal certificated, also our refining, drying and packing room meet with the GMP requirement (100000 grade). Rely ...