Sumitomo Riko and Daehung R&T to Establish Rubber JV in China on October 13, 2015 in Industry, Products Sumitomo Riko Co. Ltd. (formerly Tokai Rubber Industries), in a joint venture with Daeheung R&T Co. Ltd. of South Korea,…... Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here Continue Reading