Asian shares were mostly weak on Wednesday with investors cautious after U.S. President Donald Trump tempered optimism over progress made so far in trade talks between the world’s two largest economic powers.Gold prices rose slightly on Wednesday amid a firm dollar and uncertainty over the outcome of U.S.-China trade talks, while investors waited for minutes from the Federal Reserve’s meeting for clues on the outlook for U.S. interest rates.Oil prices edged lower on Wednesday with the possibility of higher OPEC output weighing on the market, although geopolitical risks are expected to keep prices near multi-year highs. Indian Oil Corp (IOC).......