US Treasury Secretary Janet Yellen concluded four days of negotiations in China with a warning to the country’s banks and exporters. If they help strengthen Russia’s military potential, Washington will come after them, according to Bloomberg. “I stressed that companies, including those in the PRC (People’s Republic of China – ed.), must not provide material support for Russia’s war, and that they will face significant consequences if they do,” said Yellen’s statement prepared for a press conference at the US ambassador’s residence in Beijing. According to her, “any banks that facilitate signif…