Sinopec Nanjing Engineering Co., Ltd.("SNEI"), a subsidiary of Sinopec Engineering (Group) Co., Ltd. ("SEG"), is an international engineering company offering integrated solutions for technology, engineering, procurement, construction and project management services to customers in China and globally.

SNEI came as a merger in 2009 between two well-established Sinopec companies - Sinopec Nanjing Design Institute (founded in 1958) and the Second Construction Company of Sinopec (founded in 1954). Leveraging unparalleled synergy in technology, engineering, procurement, construction, and project capabilities, SNEI is active both in the Chinese and global markets.

Home to an all-encompassing team of 25 engineering disciplines including process, piping, environmental protection, mechanical (static and rotating), electrical, instrumentation, thermal engineering, and bulk material handling, SNEI specialises in the coal chemical, natural gas chemical, integrated gasification combined cycle (IGCC), C1 chemical and derivatives, petrochemical, environmental engineering, alternative energy, inorganic chemical including sulphuric acid, phosphates and catalysts, and industrial and residential buildings, playing a major role in the petrochemical, fine chemical, inorganic chemical and basic chemical sectors in China.