SHANGHAI, Mar 21 (SMM) - On March 21, copper inventory under warrants in SHFE warehouses lost 5,232 mt to 92,184 mt; aluminium inventory fell 5,382 mt to 219,638 mt; lead inventory rose 54 mt to 39,481 mt; zinc inventory dipped 1,148 mt to 45,415 mt; tin inventory lost 27 mt to 8,149 mt; nickel inventory dropped 188 mt to 1,643 mt; stainless steel inventory declined 899 mt to 87,342 mt.
![Imported supply replenishment combined with widening backwardation, Shanghai spot copper premiums retreat after rapid rise [SMM Shanghai Spot Copper Weekly Review]](https://imgqn.smm.cn/usercenter/KTLHT20251217171714.jpeg)

![Estoque social de cobre cai para 88.900 t, Guangdong atinge nova mínima do ano [dados semanais da SMM]](https://imgqn.smm.cn/usercenter/gCNEi20251217171715.jpeg)
