Photo taken on May 7, 2016 shows the scenery of sunrise at the Caofeidian Port in Tangshan, north China's Hebei Province. Caofeidian is an econimic development zone in the Bohai Bay, about 200 kilometers east of Beijing, capital of China. (Xinhua/Liu Mancang)

Photo taken on May 7, 2016 shows the scenery of sunrise at the Caofeidian Port in Tangshan, north China's Hebei Province. Caofeidian is an econimic development zone in the Bohai Bay, about 200 kilometers east of Beijing, capital of China. (Xinhua/Liu Mancang)

Photo taken on May 7, 2016 shows the scenery of sunrise at the Caofeidian Port in Tangshan, north China's Hebei Province. Caofeidian is an econimic development zone in the Bohai Bay, about 200 kilometers east of Beijing, capital of China. (Xinhua/Liu Mancang)

Photo taken on May 7, 2016 shows the scenery of sunrise at the Caofeidian Port in Tangshan, north China's Hebei Province. Caofeidian is an econimic development zone in the Bohai Bay, about 200 kilometers east of Beijing, capital of China. (Xinhua/Liu Mancang)