Politico published on 28 March 2024 an article titled "How China Ended Up Financing the Houthis' Red Sea Attacks" by Matthew Karnitschnig.
China's illicit purchases of Iranian oil are indirectly financing Houthi attacks on Red Sea shipping. China buys about 90 percent of Iran's oil. Tehran's Quds Force provides the Houthis with the missiles, drones, and training that permit them to launch the attacks. Ironically, China is one of the biggest losers due to the disruption of the large quantity of Chinese imports and exports that transit the Red Sea and higher shipping insurance costs.