Home2006 Treaties and Agreements ...Vietnam (06-531.5) – Agreement on Elimination of Prohibited Subsidies and Related Matters hide Vietnam (06-531.5) – Agreement on Elimination of Prohibited Subsidies and Related Matters TIAS Office of Treaty Affairs May 31, 2006 Trade and Investment: Prohibited Subsidies and Related Matters Agreement effected by exchange of letters at Hanoi May 31, 2006; entered into force May 31, 2006. Download attachment [528 KB] Tags Trade and Investment Treaties Vietnam