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Yancheng Yongchang Pharmaceutical Co., Ltd. is located in the Chemical Industry Park of Binhai County Economic Development Zone, Yancheng City, Jiangsu Province. The company was established in 2006, having been relocated and built from Changshu Rongchang Refrigerant Co., Ltd. It covers an area of 28,000 square meters and currently employs 86 people, including 10 with college degrees or higher and 12 chemical technicians, enabling the development and production of pharmaceutical intermediate products.

Main products include: lithium bromide refrigerant, anhydrous lithium bromide, polyurethane adhesive, ethyl silicate, 2-acetoxyisobutyryl chloride, 2-chloro-3-hydroxypyridine, 2-bromo-3-hydroxypyridine, rebamipide and its intermediates. The old factory has specialized in producing lithium bromide refrigerant for over 20 years, offering lithium bromide solutions that meet various standards (ministry standards, Carrier standards, etc.) and include different types of corrosion inhibitors (lithium chromate, lithium molybdate, lithium nitrate), compatible with various lithium bromide refrigeration units. Two-component polyurethane is used in the production of aluminum-plastic composite tapes, providing a special adhesive with high viscosity bonding for aluminum-plastic composites; ethyl silicate is used in the manufacture of anti-corrosion coatings; pharmaceutical intermediates are supplied to pharmaceutical production companies.