Concurrently with the SUMED project, Tamraz conceived and financed the world’s largest chemical methanol plant in Jubail, Saudi Arabia in partnership with Japan’s Itochu Corporation and Mitsubishi Heavy Industries. Tamraz continued subsequently as an advisor to Itochu senior management, especially on Middle East energy strategy. The methanol project included a five-year, 100-million-barrels (16,000,000 m3) preferential crude oil supply contract for Japan that was signed with the Saudi government during the 1973 oil crisis.