Copper edged lower midday in Asian trading hours. Investor appetite is likely affected by a stronger U.S. dollar, and the market is waiting for the U.S. to review refined copper imports and potential tariffs, ANZ Research writes in a note. U.S. Commerce Secretary Howard Lutnick was due to deliver an update to President Trump earlier this week, it adds. The three-month LME copper contract is 0.1% lower at $13,281.00 a ton. (kimberley.kao@wsj.com)