council decis decemb provision applic agreement form exchang letter amend agreement european econom commun socialist republ vietnam trade textil cloth product ec council european union regard treati establish european commun articl conjunct articl sentenc thereof regard propos commiss commiss negoti behalf commun agreement form exchang letter amend agreement european econom commun socialist republ vietnam trade textil cloth product initial decemb modifi agreement form exchang letter initial decemb agreement form exchang letter appli provision basi januari pend complet procedur requir conclus subject reciproc provision applic socialist republ vietnam decid articl agreement form exchang letter amend agreement european econom commun socialist republ vietnam trade textil cloth product appli provision basi januari pend formal conclus subject reciproc applic socialist republ vietnam text agreement attach decis articl decis publish offici journal european commun brussel decemb council presid borrel fontel