After contract rollover, weak demand weighs on Shanghai spot copper premiums [SMM Shanghai spot copper]

High copper prices suppress Shanghai spot copper trades, making transactions difficult.

[SMM PV] China's silicon-based perovskite tandem cell mass-production line was put into operation, with PV conversion efficiency surpassing 31.2%

[SMM HRC Daily Trading Volume] Spot Trading Volume Retreats from Highs

SHFE Copper 2606 Contract Last Trading Day, Copper Prices Rose, Spot Premiums Were Slightly Under Pressure [SMM Shanghai Spot Copper]