The United States has announced a new wave of sanctions targeting a network of companies alleged to be involved in the shipment of Iranian oil to China. This includes the sanctioning of several firms and shipping entities, as well as specific vessels linked to the Iranian military. The actions come as part of the US strategy to exert maximum pressure on Iran regarding its nuclear program, with officials emphasizing a connection between the sanctions and ongoing diplomatic negotiations. Iran has condemned these sanctions, claiming they are unjust and detrimental to constructive dialogue. The sanctions also extend to various Chinese firms and refineries, highlighting the complex geopolitical implications of US-Iran relations and their impact on international oil trade.