Dongguan Tongjie Trading Co., Ltd., established in 2001, is a manufacturer and trading company based in Dongguan, China, specializing in various types of synthetic leather. The company employs 11 to 50 people and possesses professional technicians and advanced equipment for new product development (Source 1). They produce a wide range of PU (dry PU/wet PU), SEMI-PU, PVC, and calender leather, which are extensively used in shoes, bags, furniture, and stationery (Source 1). Dongguan Tongjie Trading Co., Ltd. is committed to quality, offering products that comply with international standards for low toxicity, including RoHS (phthalate free), European EN-71-part3, American ASTM-FP63C AZFREE, UK BS5852 (fireproof), and CA117 California fireproof (Source 1). The company operates a factory and exports its products to over 20 countries and regions worldwide (Source 1).