Shares of Fast Retailing declined as much as 4.5%, the most since Sept. 30, after a spokesperson said the company is concerned about Chinese demand following comments from its chairman that the retailer is not using cotton from Xinjiang.

Fast Retailing's chief executive Tadashi Yanai, who had been silent for years over the procurement of cotton from the northwestern Chinese region, revealed this week to BBC that Uniqlo was "not using" cotton from Xinjiang. "By mentioning which cotton we ...

The boss of the company behind global fashion chain Uniqlo has told the BBC that the Japanese firm does not use cotton from the Xinjiang region of China in its products. It is the first time Fast Retailing's chief executive Tadashi Yanai has directly addressed the contentious issue.