The Trump administration has added that China's Huawei and 68 affiliates in more than two dozen countries to its so-called "Entity List."<br />Thursday's move to immediately enact restrictions that'll make it difficult for the Chinese tech giant to do business with American companies comes just a day after the U.S. Commerce Department first gave notice that it was adding Huawei to the list.<br />Companies on the list are banned from buying parts and components from American firms... without U.S. government's approval.<br />And getting the approval won't be easy because Washington will review applications under a (quote) "policy of presumption of denial."<br />The executive order signed by President Trump says... Huawei's products pose a security threat citing a criminal case pending over allegations Huawei violated U.S. sanctions against Iran. <br />