A BI-NATIONAL agreement aimed at boosting trade between South Africa and Vietnam was signed in Pretoria on Tuesday. Trade and Industry Deputy Minister Lindiwe Hendriks said the agreement will open the doors of trade for both countries and that it will serve as a legal framework to safeguard the interests of the businessman. Amongst other things, Vietnam is a ready market for steel, fertilisers, fruits, nuts, oilseeds, tobacco, chemicals, telecommunications equipment and tanning and dying materials.