For much of the last two decades, China has maintained a delicate balance in its military relationship with Iran, offering often indirect assistance instead of arms sales. That approach is now drawing renewed attention after U.S. officials said intelligence agencies were assessing whether China may have shipped shoulder-fired missiles to Iran in recent weeks. President Trump has said he would impose an additional 50 percent tariff on Chinese goods if the assessment proves accurate. China has denied the claim, calling it “pure fabrication” and has vowed to “resolutely retaliate” if the Trump administration goes through with tariffs.

Full report : China has denied claims this month by U.S. intelligence that it might have shipped arms to Iran.