An Iranian businessman is among six people and four businesses identified by the U.S. Treasury Department Friday as running front companies to help Iran evade limits on oil sales.

Seyed Seyyedi runs Sima General Trading, which the Treasury Department says is part of a group of front companies working to get around existing sanctions on Iranian oil exports. Sima works with a Greek businessman named Dimitris Cambis in hiding Iranian interest in ships carrying $200 million in oil per month.

The Treasury Department has enacted a host of sanctions against Iranian-owned businesses, banks and other outlets in an attempt to persuade the Islamic Republic to end its nuclear weapons program.

"Our sanctions on Iran's oil sales are a critically important component of maintaining pressure on the Iranian Government, and we will not allow Iran to relieve that pressure through evasion and circumvention," Treasury Under Secretary for Terrorism and Financial Intelligence David S. Cohen said in a statement. "We will continue to target those individuals and entities that devise schemes to evade our sanctions."

Click here to see the full Treasury statement.