1. US President Donald Trump criticizes China's export controls on rare earths for military use and limits on related technologies, threatening retaliation with possible "massive" tariffs and potential cancellation of a summit meeting with President Xi Jinping.

2. Beijing's decision to ban rare earth exports for military purposes and limit exports of processing technology is in response to ongoing trade negotiations between China and the United States. Rare earths are crucial components in various industries, including electric vehicles.

3. China holds a significant share of the global market for rare earths, making this issue a contentious point in bilateral trade discussions between the two countries. The Trump administration is reportedly considering escalating tariffs on Chinese products.