Complex sentence: Yanase was established in Hibiya, Tokyo in 1915 initially as a truck and bus builder by, as a part of the Mitsui Group, and by 1920 the company became an importer of General Motors products, primarily Buicks and Cadillacs.
Split into simpler sentences: Yanase was established in Hibiya, Tokyo in 1915 initially as a truck and bus builder by, as a part of the Mitsui Group. By 1920 the company became an importer of General Motors products, primarily Buicks and Cadillacs.