This week (4.3-4.9), the operating rate of the brass billet industry was recorded at 54.71%, down 0.45 percentage points WoW. Downstream demand from the refrigeration and heat dissipation sectors still provided some support, but recycled brass raw materials supply was tight, pushing enterprise raw material inventory to pull back slightly to 4.37 days. Next week (4.10-4.16), affected by copper price fluctuations, enterprise orders are expected to shrink, compounded by the continued tight recycled brass raw material supply, and the industry operating rate is expected to decline 1.09 percentage points WoW to 53.62%.
![Mine-Side Disruptions Drove Copper Prices Higher, SHFE Copper BC Copper Price Spread Inversion Widened Further [SMM BC Copper Commentary]](https://imgqn.smm.cn/usercenter/JnFuh20251217171711.jpg)
![[SMM Analysis] Sulphuric Acid: A Key Variable Reshaping Copper Pricing Logic](https://imgqn.smm.cn/usercenter/FSTyq20251217171713.jpg)

