British multi-service company involded in engineering and mining (礦務 kuangwu) (1924-1934), and finance, offering bonds (1924) and mortgage debentures (1924). Advertised first in the North China Daily News (1914-1934), later in the Shenbao (1924-1934).

Change of Chinese and English names from the "Chinese Engineering and Mining Company" (1902-1912) to "Chinese Engineering and Trading Company" (1929), and finally "Chinese Engineering and Development Company" 大昌實業公司 (1930, 1933-1941)/開平礦務有限公司 (1931-1932)

Not to be confused with the eponym company 中華工商有限公司, located N1 Hankow Road (1883-1884).