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SJS Ltd. is a Sino‑U.S. joint venture established through the joint investment of Sinopec Petroleum Machinery Co., Ltd. and the U.S.-based Saval Group. Located in Jingzhou, a historic and culturally renowned city on the banks of the Yangtze River in central China, SJS Ltd. is an industry‑leading enterprise specializing in the research, development, and manufacturing of oilfield drilling and production equipment, distinguished by its first‑class technology, products, and service quality. Founded in 1992, the company primarily produces and markets high‑pressure triplex and quintuplex plunger pumps for oilfields, computer‑controlled cementing and fracturing systems, downhole tools, clutches, and brakes. The company’s strategic goal is to fully leverage its proprietary core technologies and the collective wisdom of all its employees, delivering satisfactory products and services to a broad base of domestic and international customers, thereby establishing itself as a modern, industry‑recognized enterprise in terms of product quality, technological innovation, corporate culture, and customer satisfaction.