council decis novemb conclus multilater agreement sign end trade confer eec council european commun regard treati establish european econom commun articl thereof regard council decis author commiss part trade confer held auspic contract parti gener agreement tariff trade regard report commiss annex final act june geneva protocol agreement relat princip chemic supplementari geneva protocol memorandum agreement basic element negoti world grain arrang agreement implement articl iv gener agreement tariff trade implement council decis june agreement mention sign behalf commun subject conclus reciproc concess commit negoti european econom commun countri take part negoti constitut accept result decid sole articl agreement conclud behalf european econom commun geneva protocol gener agreement tariff trade agreement relat princip chemic supplementari geneva protocol gener agreement tariff trade memorandum agreement basic element negoti world grain arrang agreement implement articl vi gener agreement tariff trade text agreement annex brussel novemb council presid hocherl annex