"There's been some buying on the back of a lower dollar and the possibility of a strike at Escondida (copper mine in Chile)," a copper trader said. "But the rally does seem to have to run out of steam."
An overhaul of Chile's market-orientated constitution is underway and the country is debating whether to increase royalties on miners.
Benchmark copper on the London Metal Exchange was up 0.1% at $9,895 a tonne.
Copper prices dipped initially on Friday, but then joined gains in other risky assets such as world stocks, which held near record highs, lifted by strong US data and the Federal Reserve's vow to support the economy.
LME copper inventories fell for the second straight session, albeit only slightly, while the premium of cash copper over the three-month contract rose to $16 a tonne, indicating tightening nearby supplies.