Nanjing Yangzi Synthomer Chemical Ltd. (“YSC”), formerly known as Nanjing Yangzi Eastman Chemical Ltd., was established on November 16, 1998, as a joint venture and Eastman Chemical Ltd. (ECL, a US company), each with 50% equity interest. On March 31, 2022, ECL transferred its 50% equity interest in the joint venture to Synthomer Adhesive Technology Limited (SYN, a UK company). From then on, SYN became the foreign shareholder of the joint venture. YSC is located on No.1 Yanhe North Road, Jiangbei New District, Nanjing. Its board of directors consists of six directors with three from YPCL and three from SYN, among which the chairman is assigned by YPCL and vice chairman assigned by SYN. YSC has one general manager, one deputy general manager and five departments—HR & Admin Department, Production and Maintenance Department, HSE Department, Sales Department and Finance Department, among which the general manager and the marketing manager are assigned by SYN and the deputy general manager, the HR & Admin manager and the financial manager are assigned by YPCL. By December 2025 YSC’s total assets have reached RMB 170 million. It now employs 75 people, including 9 with senior professional titles, and 20 with mid-level professional titles.

With the advanced proprietary technology from SYN and pyrolysis C5 gasoline from YPCL, YSC manufactures and sells world-class hydrogenated C5 petroleum resin products. YSC now has a C5 hydrogenated petroleum resin plant with a capacity of 23,400 MT/year which mainly produces 14 grades of hydrogenated petroleum resin products of Regaltac series, and Regalite series.