New President Xi Jinping has hailed the strength of China's ties with African nations.
Mr Xi described Africa as "a continent of hope and promise".
He was speaking in Tanzania - the second country he has visited since taking power 11 days ago.
Addressing leaders at a conference hall built by China in Dar es Salaam, he said trade between China and Africa topped $200bn (£130bn) last year.
Mr Xi and his Tanzanian counterpart Jakaya Kikwete signed 16 different trade agreements including improvements to Tanzania's hospitals and ports, and the building of a Chinese cultural ...