Photo taken on Oct. 25, 2016 shows sponge iron being transported in Austria's Voestalpine AG Hot Briquetted Iron (HBI) plant in Corpus Christi, southern U.S. state of Texas. After about two and a half years of construction, the Voestalpine HBI plant that opened Wednesday in the Mexican Gulf city Corpus Christi, southern Texas, is the world's largest and most state-of-the-art plant of its kind.(Xinhua/Zhang Yongxing)
