SHANGHAI, Apr 10 (SMM) – Stocks of copper across Shanghai bonded area continued to shrink this week, as demand surged in an open import arbitrage window.
SMM data showed that the stocks decreased 6,500 mt in the week ended April 10 to 327,300 mt, marking the third straight week of decline and larger than a 5,200 mt fall in the previous week.
Yangshan copper premiums rose nearly $10/mt this week, bolstered by strong demand for imported copper under warehouse warrants and bills of lading.

![SHFE/LME price ratio weakens, spot premiums fall [SMM Yangshan spot copper]](https://imgqn.smm.cn/usercenter/AbRbz20251217171711.jpg)
![High copper prices combined with weak supply and demand keep SHFE copper spot premiums falling under pressure [SMM SHFE Copper Spot]](https://imgqn.smm.cn/usercenter/HeIuV20251217171708.jpg)
![Limited available supply kept supplier quotes firm, but downstream demand was weak [SMM South China spot copper]](https://imgqn.smm.cn/usercenter/SiNDH20251217171711.jpg)
