US Blacklists Chinese, South African Companies Over Iran Oil Trade

A picture shows phase 17 and 18 of South Pars gas field development in the southern Iranian port town of Asaluyeh, on July 19, 2010. Atta Kenare/AFP via Getty Images

WASHINGTON—The United States on March 18 named seven companies that it has blacklisted for trade in Iranian petrochemicals, three based in mainland China, three in Hong Kong and one in South Africa, the State Department said in a statement.

U.S. Secretary of State Mike Pompeo had said on Tuesday the agency was targeting such entities but did not name them.