The U.S. Department of the Treasury's Office of Foreign Assets Control (OFAC) announced that certain individuals have been added to the Specially Designated Nationals and Blocked Persons List (SDN List), as they met the legal criteria for inclusion. This means their property and financial interests in the U.S. are blocked, and U.S. citizens are generally not allowed to conduct transactions with them. The names are published to inform the public and to ensure compliance with the sanctions. For more information, the SDN List and details on OFAC sanctions programs can be accessed on the OFAC website.
Simple Explanation
The U.S. government has added some people to a list called the SDN List because they did something that broke the rules. This means U.S. people can't do business with them, and their stuff in the U.S. is frozen, like when ice stops things from moving.