Rob Denning Washington has stopped asking China to help enforce Iran sanctions and started punishing it directly. Treasury sanctioned Chinese entities on Monday over their dealings with Iran, and Secretary Scott Bessent warned every country to halt Iran trade or face the same treatment, according to the South China Morning Post and the Detroit News.
Bessent framed the move as an "economic D-Day" meant to isolate Iran, and Al-Monitor called the new sanctions a "warning shot" aimed at Iran's remaining trading partners. Trump has asked world leaders to cooperate, and Bessent said further secondary sanctions are possible, according to NBC News. The announcement comes as the Iran war approaches its six-month mark, per MS NOW.
China buys the bulk of Iran's sanctioned oil exports, so an enforcement regime that does not touch Chinese buyers is largely symbolic. Dan Tannebaum of Oliver Wyman called China "the linchpin" of Iran sanctions enforcement — which is why sanctioning Chinese entities directly, rather than merely pressuring Beijing, marks an escalation and risks friction with Washington's largest trading partner.
How far Treasury goes is still an open question. Kevin Book of ClearView Energy Partners said it remains to be seen how aggressively Treasury will pursue secondary sanctions, and the NZZ reported that Monday's press conference offered little concrete detail despite the sweeping rhetoric.
What to watch: whether Beijing retaliates against the sanctioned entities or against US firms operating in China, and whether Treasury follows through with broader secondary sanctions targeting the Chinese banks and refiners that handle most of Iran's oil trade.
