Rio ups Sovereign stake, inks Antipa deal
Rio Tinto has upped its stake in ASX-listed Sovereign Metals to 19.9 per cent while spending $17 million on buying out a joint venture asset in WA.
Tomas Kauer - News Moderator 
Rio Tinto has upped its stake in ASX-listed Sovereign Metals to 19.9 per cent while spending $17 million on buying out a joint venture asset in WA.
