African operator group MTN has announced a definitive deal with American Tower Corporation, to create an infrastructure joint venture in Ghana. The resulting company, TowerCo Ghana, will pay approximately US$428.3 million for 1,876 existing mast sites owned by MTN, with plans to build an additional 400 sites over a five year period. American Tower Corporation will invest US$218.5 million to take a 51 percent stake in TowerCo.