Beijing has issued an additional series of sanctions against seven US companies that it added to its "Unreliable Entity List" for selling arms to Taiwan.

It may not have a major impact on these companies, but represents a growing willingness by China to play tit-for-tat with the US.

Not just military companies. Ban their civilian companies who are also banning our imports.

United States and Chinese flags are set up before a meeting between U.S. Treasury Secretary Janet Yellen and Chinese Vice Premier He Lifeng at the Diaoyutai State Guesthouse in Beijing, China, Saturday,