TMTPOST -- Shares of Suning.Com fell after the troubled Chinese retailer said its largest shareholder, Alibaba Group Holding, plans to reduce its stake in the company. Suning closed 4.8 percent lower at 1.78 yuan (25 US cents) today. Stocks of firms facing operational risks, such as Suning, are subject to a maximum daily price fluctuation of 5 percent, which was rounded to 4.8 percent in this case due to the low price, according to Shenzhen Stock Exchange rules. Alibaba’s subsidiary, Hangzhou Haoyue Enterprise Management, will sell up to 263 million shares of Suning — about 2.9 percent of the total — through centralized bidding and bulk trading over a three-month period starting on the 15th trading day from the announcement, the Nanjing-based company said yesterday. Alibaba originally invested 23.8 billion yuan (USD3.3 billion) in Suning through its Taobao unit in 2015 to strengthen cooperation between online and offline retail.