Copper Rises in Shanghai Night Session; Tin Up 0.84%, Alumina Gains 1.41%

The split matters more than the headline number: alumina's 1.41% gain outpaced every metal in the complex, while aluminium itself was flat and stainless steel fell — a divergence that points to feedstock-specific pressure rather than broad industrial demand. Copper's firmer offshore print also suggests the move was partly currency- and macro-driven rather than purely domestic. Whether alumina's premium over aluminium persists, and whether copper's international lead holds, are the open questions worth tracking.