The bargain clothing site, which is seeking a London stock listing, declined to shed light on whether its clothing contains cotton from Xinjiang.

A lawyer for Shein summoned to a British parliamentary hearing has evaded questions on whether the fast-fashion giant sells products containing cotton from China.

Yinan Zhu, general counsel for the EMEA at Shein, appeared before the Business and Trade Committee on Tuesday amid reports that the fast-fashion retailer plans a stock market float in the UK

Yinan Zhu declined to say whether it retailer's suppliers used Chinese cotton amid concerns over forced labour.

Shein's lawyer dodged questions about the use of Xinjiang cotton and alleged forced labor and child labor in its supply chain during a hearing held by the U.K. parliament's Business and Trade Committee earlier this week.

A Shein representative declined to provide a direct answer when asked by a British parliamentary committee on Tuesday whether the online fast-fashion retailer uses cotton from China, a key issue for potential investors concerned about its supply chain.

A representative of fast fashion clothing brand Shein repeatedly refuses to deny that the company uses cotton sourced from China, where practices are widely speculated to use modern slavery.