The United States had objected to an IPO of the fashion mail order company Shein in New York: There was suspicion of forced labor. According to insiders, the Chinese low-cost fashion specialist is now stepping up its efforts to be listed in London. Several people familiar with the matter said that the online retailer, known for its affordable and fast-changing collections, intends to inform the Chinese authorities of the change of plans this month and submit the application to the London Stock Exchange (LSE).