May 24, the Commerce Department released the 2012 Announcement No. 26, published the preliminary conclusions of the U.S. renewable energy industry part of the support solar battery charger policies and subsidies for trade barrier investigation.

The Commerce Department preliminary investigation determined that the six measures iPhone mini battery charger in the United States constitute prohibited subsidies WTO Subsidies and Countervailing Measures Agreement 3, in violation of Article 3 of the WTO Agreement on Subsidies and Countervailing Measures "and General Agreement on Tariffs and Trade in 1994 with the relevant provisions of Article 3, the normal trade-distorting form the Mini mobile phone solar charger Ministry of Commerce Foreign Trade Barriers investigation Rules, "of Article 3 of" breach of the country (region) concluded or acceded to with China economic trade treaty or agreement, or failure to perform and China concluded or acceded to the economic trade treaty or agreement obligations mobile phone solar charger under the "trade barriers.

November 25, 2011, CCCME, and the cell phone solar charger application of the new energy of the China Federation of Industry Chamber of Commerce, the Commerce Department in accordance with the People's Republic of China Foreign Trade Law and Commerce Department of Foreign Trade Barriers Investigation Rules, "the provisions of annual Notice No. 69 on the U.S. renewable energy support policies and subsidies to initiate trade barriers investigation.