Shanghai base metals close mixed; nickel rises 2.54%, tin falls 2.96%

The dispersion here is the story: nickel and stainless steel moving higher together points to a nickel-specific bid rather than a broad base-metals risk-on, while tin's sharp drop and copper's softer night session suggest demand-side caution elsewhere. This matters most for industrial metal consumers and producers hedging input costs, since the cross-market divergence complicates any single directional read on the complex. Whether nickel and stainless steel stay correlated, and whether tin's decline extends, are the open questions worth watching in the next sessions.