China unleashed its broadest package of trade countermeasures since last October's truce. Beijing's move to sanction firms that help enforce Washington's sanctions could have significant implications for U.S. businesses operating in China, analysts say. China appears to be starting to replicate Washington's playbook, curbing the flow of Chinese technology to the U.S., BNP Paribas says. BEIJING, CHINA – NOVEMBER 11: The national flag of China flies in front of the headquarters of the Ministry of Commerce on November 11, 2025, in Beijing, China. Cheng Xin | Getty Images News | Getty Images China unleashed its broadest package of trade countermeasures…