Singapore's relationship with Indochina in mid-1989 permitted the conduct of normal commercial transactions, but discouraged aid, training, infrastructural development, and trade in strategic goods. In April 1989, the Ministry of Home Affairs and the Ministry of Foreign Affairs informed Singaporean companies that they could not invest in Vietnam until the Vietnamese had withdrawn their troops from Cambodia. The companies were allowed to conduct negotiations with Vietnam, but could not commit any investments until the Vietnamese withdrawal was complete. A few Singaporean companies had invested in Vietnam while normal commercial transactions were still going on, before the government had a clear policy concerning investments. Minister for Foreign Affairs Wong Kan Seng indicated in 1989, however, that Singapore was looking beyond the Cambodian problem to its future relations with Indochina.

Data as of December 1989