U.S. and Chinese officials may be able to settle many of their differences to reach a trade deal and avert punishing tariffs, but they remain far apart on one issue: the U.S. demand that China stop purchasing oil from Iran and Russia, Associated Press reported.

“China will always ensure its energy supply in ways that serve our national interests,” China’s Foreign Ministry posted on X on Wednesday following two days of trade negotiations in Stockholm, responding to the U.S. threat of a 100% tariff. 

“Coercion and pressuring will not achieve anything. China will firmly defend its sovereignty, security and development interests,” the ministry said, according to Associated Press.