استقرت النحاس بعد انخفاضها إلى près de 14000 دولار للطن، حيث أشارت شحنات جديدة من المخزونات إلى مراكز交易 tracked إلى easing of a supply squeeze. Vae futures على بورصة لندن للمعادن (LME) كانت صغيرة التغيير على إغلاقها الأدنى في أربعة أسابيع. لقد انخفضت الأسعار sharply منذ وصولها إلى سجل تاريخي الأسبوع الماضي، عندما كان المتداولون ينقلون الإمدادات إلى الولايات المتحدة anticipation of tariffs on refined metal, leaving the rest of the world starved of supply. So far, that measure has failed to materialize and on Monday, LME warehouses received their biggest deliveries of the metal in almost four weeks.

Three-month futures flipped to a premium of $85.75 a ton to copper for immediate delivery, a market structure known as contango that signals ample supply. Later Tuesday traders will look to a slew of economic data from China, including retail sales, to see how demand is holding up in the world's top metals consumer. Also in focus is the Federal Reserve's upcoming meeting, where the central bank is expected to raise interest rates.

That's typically a negative for non-yielding assets like commodities. Copper edged up 0.2% to trade at $14,032 a ton on the LME at 10 a.m. in Singapore. Other metals were similarly little changed, with aluminum up 0.2% and zinc down 0.2%.

Singapore iron ore futures were stable at $95.55 a ton.