Tags Sumitomo Mitsui Trust Bank (SMTB) BIDV, Sumitomo Mitsui Trust announces new joint venture Wednesday, Feb 22, 2017 The State Bank of Viet Nam (SBV) on Tuesday gave its in-principle approval for expansion of leasing business between the Bank for Investment and Development of Viet Nam (BIDV) and Sumitomo Mitsui Trust Bank (SMTB).