Oct 27 (Reuters) - Vale Sa VALE5.SA
* Brazilian miner Vale has found negotiations with Australia's Fortescue Metals Group FMG.AX over shared blending more complex than anticipated, Vale's head of iron ore Peter Poppinga said on a conference call without going into details
* Vale's CEO Murilo Ferreira said he expects the coal deal with Japan's Mitsui 8031.T to close in coming weeks Further company coverage: VALE5.SA