The Japan External Trade Organization, or JETRO, is a Japanese government-related organization that promotes trade and investment. If you’re thinking of Japan as an import source or export market, or if you’d like to bring your business here, this is the place to start. As a sub-Saharan region representative office, JETRO Johannesburg plays a fundamental role in promoting and facilitating the development of a mutually beneficial economic relationship between South Africsub-Saharan (12 countries), and Japan from 1961.