The mining arm of Israeli billionaire Beny Steinmetz's business empire has accused the government of Guinea of seeking to 'illegally seize' its assets through a probe into how it won rights to mine part of a major iron ore deposit. Privately owned BSG Resources, which has been working in the West African country with Brazilian mining major Vale, confirmed it had received a letter from a government commission alleging improper behaviour and graft in its winning of rights to develop blocks in the Simandou region.