Addis Ababa.  The African Union has vowed to finance its working budget using mainly domestic resources as it marks its 50th anniversary this week, the deputy chairperson of the continental body’s commission has said.Erastus Mwencha made the comments on Thursday at the AU’s headquarters in Addis Ababa, the Ethiopian capital, while addressing a news conference about the union’s budget and financial independence.The financial independence of the AU, launched in 1963 as the Organisation for African Unity (OAU) before being renamed in 2002, has been a source of controversy for a long time, as much of its working budget is financed by foreign donors.The construction of the new AU headquarters was funded by China and African countries pay for only about 40 percent of the AU’s budget. China, the Europeean Union and the US pay for the rest.The AU has been finding itself in difficult situations since the finances from donors almost always come with strings attached."It’s not possible that the partners will always align themselves to your priorities,” Mwencha said. "That is always the danger you face. Partners have got their biases and rightly so. And this is one of the things many of us have been saying. You may find partners preferring certain areas of cooperation.”