Shanghai Longsheng Chemical Co., Ltd., established in 2009, is a high-tech enterprise dedicated to the research, development, production, and technical services of pharmaceutical intermediates and new material intermediates. It has been recognized as a high-tech enterprise and a specialized, refined, unique, and innovative enterprise in Shanghai for several consecutive years. The company focuses on the research, development, production, and technological innovation of intermediates for pharmaceuticals, photoresists, and OLED materials. In 2025, the company underwent a strategic upgrade and has settled in the modern industrial base of Shanghai Gaocheng Industrial Park. The new park covers an area of over 3,000 square meters and is equipped with an international standard research and development center and intelligent production lines. This marks a new stage of large-scale and intensive development for the company. The company has a kiloton-scale production base in Jiangxi with an annual production capacity exceeding 1,000 tons. Relying on more than 40 core patents and a strong research and development team, Longsheng Chemical has become a professional service provider in the global OLED material intermediate field.