BEIJING, Jan. 25 (Xinhua) — Chinese stocks closed lower on Tuesday, with the benchmark Shanghai Composite Index down 2.58 percent, at 3,433.06 points. The Shenzhen Component Index closed 2.83 percent lower at 13,683.89 points. The combined turnover of stocks covered by the two indices came in at approximately 936.8 billion yuan (about 147.7 billion U.S. dollars), up from 864.2 billion yuan on the previous trading day. Stocks in the sector of gold and airport were the biggest winners. Stocks related to cloud gaming and digital currency led the losses. The ChiNext Index, tracking China’s NASDAQ-style board of growth enterprises, lost 2.67 percent to close at 2,974.96 points.