Top firms from as far afield as London, Paris, Dubai and Guinea are advising major players involved in the $15 billion Simandou iron ore mining project in Guinea, including the republic itself, and China’s Baowu Group, the world’s largest steel producer.

Watson Farley & Williams, Linklaters, Norton Rose Fulbright, Clifford Chance, Hogan Lovells, Allens and ADNA, are all advising respective clients on this project, according to people involved in the deal.