Unlike the previous International Meetings of Communist and Workers Parties, the League of Communists of Yugoslavia participated in the preparations and the conference (however, the Party of Labour of Albania did not participate).
和之前的共產黨和工人黨國際會議不同的是，南斯拉夫共產主義者聯盟參加了這次會議和會議的籌備過程（阿爾巴尼亞勞動黨卻沒有參與其中）。