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.

美、布两油短线走高，WTI原油现涨0.7%；布伦特原油日内涨幅达1.00%，现报87.76美元/桶。

At the morning open, China's commodity-futures main contracts were mostly lower. Coking coal fell over 2%, coke nearly 2%. Low-sulfur fuel oil (LU), fuel oil, Shanghai crude (SC), soda ash, LPG, benzene, eggs, pulp and styrene were down more than 1%. On the upside, palladium rose over 3%; SHFE tin and platinum gained more than 2%; SHFE silver climbed about 2%; bottle-grade PET chips and red dates were up over 1%.