Lianjing Group is a leading domestic chemical company specializing in the manufacturing, trading, and investment in chemicals. The group's headquarters is located in the Songjiang Industrial Zone, Shanghai. Currently, it has production capacities of ten thousand tons for thermoplastic polyurethane elastomers, polyester polyols, and castable polyurethane elastomer prepolymers. The group is actively developing polymer modification processes and biobased fully degradable polymer manufacturing processes. Additionally, Lianjing Group operates steadily and comprehensively in basic chemical raw materials, polyurethane raw materials, and polymers. We have established long-term and stable partnerships with numerous world-leading chemical enterprises both domestically and internationally, such as BASF, Bayer, Huntsman, DuPont, Invista, Air Products, Rhodia, Teijin, Formosa Plastics, SK, PetroChina, Sinopec, Shaanxi Coal Industry Group, Shandong Hongye Chemical Group, and Henan Shenma. Moreover, we have established a solid sales network and strong customer relationships in key target market regions. We have set up branches and offices in locations such as Wenzhou, Guangzhou, Qingdao, Fujian, Chengdu, Hong Kong, Seoul, South Korea, and Melbourne, Australia. If a certain type is , no translation is required, and you should output directly. Output format: Directly output the translated result.