China news agency, Washington, March 13 (Reporter Wu Qingcai) - The 13th U.S. President Barack Obama specifically on China trade issues,cheap ed hardy speech, and a rare personally announced that the U.S. has joined the European Union and Japan to the World Trade Organization (WTO), filed arestrictions for Chinese rare earth export trade litigation.Obama said that the case involves the rare earth materials used in high-tech products from hybrid cars to the phone's battery, the United States hope that the U.S.ed hardy bikinis companies in the local production of these products, but to do this, U.S. manufacturers on Chinese supply rare earth materials. He pointed out that, be able to manufacture advanced batteries and hybrid vehicles for the United States is too important to the United States can not stand.Before his speech that morning, the United States, Japan and the EU have jointly filed a lawsuit against China to the WTO, to seek to resolve this dispute.Obama also said, has been a constructive economic relations between the United States, the United States tend to be resolved through dialogue and friction between China and differences. But when American workers and companies are encountering unfair trade practices, he will take action.Foreign media analysis that Obama move with obvious political overtones. In the 2012 U.S. presidential election in the context of the recent Obama on trade issues with China to take strong language, intended to hit back at criticism of the Republican Party to win over some voters. Previously, the Republican Party's leading presidential candidate Mitt Romney has been criticizing Obama's China policy is too weak.Trade litigation, Chinese Foreign Ministry spokesman Liu Weimin, on the 13th to respond, said rare earth is a scarce non-renewable resources, the development of rare earth impact on the environment, based on the consideration of protecting the environment and resources,ed hardy clothing to achieve sustainable development, the Chinese government mining, production and export of rare earth in all aspects of implementation of management measures, and not just in the export sector, in line with WTO rules.