Bloomberg

CSaturday’s announcement — just weeks before a long-awaited meeting between President Donald Trump and his counterpart Xi Jinping later this month — signals a far more aggressive stance. Beijing has now directed companies not to abide by US sanctions on private refiners linked to the Iranian oil trade, including heavyweight Hengli Petrochemical (Dalian) Refinery Co. which was sanctioned last month.

Beijing’s move will test the US sanctions system at a time when it’s already under pressure, as Washington vacillates on curbs against Russia, Venezuela and Iran. With Trump’s war against Iran straining its global alliances, China has seized the opportunity to defend a major piece of its economic system while expanding its arsenal of economic weapons.