Photo taken on April 6, 2018 shows the Ministry of Commerce in Beijing, capital of China. China will fight "at any cost" and take "comprehensive countermeasures" if the United States continues its unilateral, protectionist practices, a spokesperson with the Ministry of Commerce said Friday. The remarks came after the U.S. President Donald Trump said Thursday that he had asked the U.S. Trade Representative to consider 100 billion U.S. dollars of additional tariffs on Chinese products. (Xinhua/Li He)