Guangzhou Futures Exchange warehouse receipts: lithium carbonate futures 25,042 lots, down 13,939 lots versus the previous trading day; polysilicon futures 20,790 lots, up 350; industrial silicon futures 32,286 lots, down 16.

On the 31st (local time), Iran's Islamic Revolutionary Guard Corps said its navy struck and detained two tankers in the Strait of Hormuz that Iran said were violating a ban. The IRGC said the vessels attempted to transit despite warnings while under U.S. military escort. Four other tankers altered course and returned after warnings. Iran warned it would respond to any attempts to disrupt navigation in the area.

Bank of Japan says underlying consumer price index (CPI) inflation carries upside risk and could exceed its 2% price-stability target.