TAIPEI :Taiwan's state-owned energy company CPC Corp said it is not in talks for "specific" shale gas fields in the United States, but it does not rule out any prospective partners and will make the most favourable decision based on its own evaluations. CPC is in early stage discussions to buy shale-gas producing assets in the United States, three sources familiar with the matter told Reuters earlier this month, in a bid to secure natural gas supplies to fuel Taiwan's economy. In a statement