Aug 26 (Reuters) - Britain's FTSE 100 index is seen opening 10 points higher at 6,047 on Wednesday, according to financial bookmakers. * Copper prices rose on optimism over progress in U.S.-China trade talks and signs that researchers might be closer to a treatment for the coronavirus. * GOLD: Gold was little changed, as worries over global economic outlook offset pressure from signs of progress in U.S.-China trade negotiations, while investors await a speech from U.S. Federal Reserve Chairman Jerome Powell. * OIL: Brent crude oil prices rose, lifted by U.S. producers shutting most of their offshore output in the Gulf of Mexico ahead of Hurricane Laura and optimism over China-U.S. trade talks. * The UK blue-chip index closed lower on Tuesday, weighed down by miners and a stronger pound, while an unexpected drop in retail sales kept risk sentiment at bay. * UK CORPORATE DIARY: Provident Financial Half Year results PLC Polymetal Half Year results International PLC * For more on the factors affecting European stocks, please click on: TODAY'S UK PAPERS > Financial Times > Other business headlines (Reporting by Aakash Jagadeesh Babu in Bengaluru)
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