Nigeria will offer a 12.7 billion naira ($41.6 million) mining contract to eight companies in exploration and consultancy, its junior mining minister said on Wednesday.
The ex-head of iron ore business in China, Stern Hu, spent almost nine years in a Shanghai prison after a 2010 conviction for corruption and industrial espionage.
Eike Batista, who was once one of the richest men in the world, was found guilty of bribing former Rio de Janeiro governor Sergio Cabral in exchange for contracts.
China's top steel maker China Baowu Steel Groups move is in line with Beijing's goal push to relocate heavy industries from polluted and crowded regions to places with less environmental pressure.
Thyssenkrupp's joint venture with Tata Steel - to be named Thyssenkrupp Tata Steel - will have around 48,000 workers and about 17 billion euros in sales.