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.
"(Copper is) supported by a weaker dollar and dovish comments from the Federal Reserve," said commodities broker Anna Stablum of Marex Spectron in a note.
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.