美国对伊朗实施大规模制裁

Core Viewpoint - The article discusses the largest sanctions imposed by the U.S. Treasury Department against Iran since the "maximum pressure" campaign began in 2018, targeting a shipping network controlled by Iranian businessman Mohammad Hossein Shahmohammadi, involving over 50 entities and individuals, as well as more than 50 oil tankers and container ships [1]. Group 1 - The U.S. Treasury's Office of Foreign Assets Control announced sanctions against a shipping network linked to Mohammad Hossein Shahmohammadi, marking the largest sanctions since 2018 [1]. - The sanctioned shipping network is responsible for transporting Iranian and Russian oil, oil derivatives, and other goods globally [1]. - The sanctions also include 20 entities involved in the trade and transportation of Iranian oil and petrochemical products, along with the freezing of 10 vessels [1]. Group 2 - The article references the 2015 nuclear agreement between Iran and several world powers, highlighting the U.S. withdrawal in May 2018 and the subsequent re-imposition of sanctions [1]. - Since April of this year, there have been five rounds of indirect negotiations between the U.S. and Iran regarding the nuclear issue and the lifting of sanctions, with a sixth round canceled due to military conflicts involving Israel [1]. - The U.S. has conducted airstrikes on three Iranian nuclear facilities during the military conflict between Israel and Iran [1].