Akhir 28, 1432, April 02, 2011, SPA -- Newly appointed U.S. special envoy Princeton Lyman will depart on Saturday for meetings in Ethiopia and Sudan on the transition of South Sudan to independence in July, the State Department said. Lyman was scheduled to participate in discussions in Ethiopia on security in Sudan before meeting senior Sudanese officials in Khartoum on North-South issues and on Darfur. Following that, Lyman was to return to Ethiopia for discussions on economic arrangements between North and South Sudan, Reuters reported.