"China's Ministry of Commerce has urged the US to halt its tariff probe into copper imports.
The ministry said that China has labeled the U.S. decision to launch a Section 232 investigation into copper imports as an unreasonable act.
Ministry officials say this move, under the pretext of national security, is yet another example of unilateralism and protectionism by the United States.
They added that it undermines the rules-based multilateral trading system and disrupts global supply chain stability."
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CN Foreign ministry reaction on Rubio statement abt XJ.