市场消息：日本考虑为油轮再保险提供支持。

An LME measure of near-term supply tightness surged as copper resumed sharp volatility. The LME one-day contract traded at a $75/tonne premium to the next-day contract, the widest since January when the spread hit $100/tonne amid record LME benchmark prices. The tightness largely reflected traders rerouting several hundred thousand tonnes of copper to the United States ahead of a Trump administration decision on import tariffs. Tom/next spreads widened sharply on Tuesday, signalling short-position pressure ahead of the LME August contract expiry on Wednesday. At one point on Monday spot copper traded $545/tonne above three-month futures.

港股开盘，恒指开跌0.33%，科指开跌0.28%。周生生(00116.HK)开涨11%，料中期应占溢利21亿港元至22亿港元。