<h1>Unilateral economic sanctions risk - China warns of firm countermeasures and affirms lawful cross border energy and rare earth trade.</h1> China asserts that its purchases of Russian oil are legitimate and lawful, and warns that unilateral US sanctions or the exercise of long arm jurisdiction affecting Beijing's interests will prompt firm countermeasures to safeguard sovereignty, development, and security. Beijing also defends export controls on rare earth mining and processing as consistent with international practice and necessary for non proliferation and regional stability, while expressing willingness to resolve trade issues through dialogue and mutual consultation.