Iwa Yōkō Tenshin Shiten chōsa hōkokusho, 1944: p. 1, etc. (Jardine Matheson & Co., Ltd.; Jpn rom. of Chi. name : Iwa Yōkō; Eng. co. est. in China in 1832)
Hsiang-kang yü I ho yang hang, 1986: p. 4 of last group (fd. as Cha-tien Mai-ti-hsün kung ssu; after 1906 called Cha-tien Mai-ti-sun ku fen yu hsien kung ssu; registered in Canton as I ho yang hang; moved to Hong Kong in 1949)