Johannesburg - Cosatu denied on Thursday that a tripartite alliance economic summit had been postponed because of differences over the National Development Plan (NDP).
"It was postponed purely for logistical reasons," Congress of SA Trade Unions spokesperson Patrick Craven said.
The summit, which was initially scheduled to be held on Thursday, would reportedly deal with the NDP.
African National Congress spokesperson Jackson Mthembu said the summit had been postponed because the alliance was "not yet ready for it".
The NDP was accepted by the ANC at its national conference in Mangaung in December.
However, Cosatu and the SA Communist Party (SACP) have expressed reservations about certain aspects of the plan.
On June 24, the SACP and Cosatu said in a joint statement they had met to discuss preparations for the summit.
"On preparations for the... summit, it was agreed to focus the discussion on what the ANC 53rd conference called the second phase of radical economic transition, which calls for a fundamental restructuring of our economic growth trajectory," they said.
"The two delegations agreed that our organisations held broadly convergent views on the National Development Plan, in particular that the chapter on jobs and the economy requires serious reworking."