Home1998 Treaties and Agreements ...Equatorial Guinea (12963) – Investment Incentive Agreement hide Equatorial Guinea (12963) – Investment Incentive Agreement TIAS Office of Treaty Affairs June 11, 1998 Foreign Assistance: Investment Guaranties Agreement signed at Washington June 11, 1998; Entered into force June 11, 1998. Download attachment [282 KB] Tags Equatorial Guinea Foreign Assistance Treaties