China says that trade wars have "no winners", after US President Donald Trump warned that the United States may stop buying cooking oil from the country. Beijing also defends its latest export controls on rare earths as protecting global security after the European Union's trade chief called the restrictions unjustified. During the same press conference of China's foreign ministry, spokesman Lin Jian also commments on Nexperia, a Chinese-owned chipmaker based in the Netherlands. The Dutch government has invoked a Cold war-era law to effectively seize its control. IMAGES AND SOUNDBITES