UPDATE 2-China's Zijin bids $498 mln for Australia's Indophil

* Zijin bids A$1.28/shr,18% premium to Indophil pre-bid price * Xstrata agrees to sell 19.99 pct Indophil stake to Zijin * Xstrata aims to finish Tampakan feasibility study in 2010 * The deal will see Zijin become a global copper producer * Zijin shares