The Congress of South African Trade Unions was not confused about its call for nationalisation, Cosatu general secretary Zwelinzima Vavi said on Sunday.

Nationalisation was a policy of the tripartite alliance which emanated from the 1955 Freedom Charter, Vavi said in Durban at the federation's KwaZulu-Natal Provincial Shopsteward Council.

"Any revolution that does not address who owns what will not be a revolution," he said.