The strong performance at Shein's UK division, which employs 113 people mostly in sales and marketing, was helped by marketing partnerships with the Wireless and Creamfields music festivals, a pop-up shop on London's Oxford Street and Christmas gift events in Edinburgh, Manchester, Liverpool and London.
The figures are likely to increase pressure on the government to bring forward action to change the "de minimis" rule that has underpinned the rise of Shein and Temu. The rule allows overseas sellers to send goods valued at £135 or less direct to British shoppers without paying customs duty. Former chancellor Rachel Reeves said she would abolish it by 2028, but major retail bosses have said the government should move sooner.
Fears about Chinese retailers and manufacturers dumping goods in the UK have grown since the US last year revoked its own de minimis exception for Chinese-made goods, which had exempted parcels under $800 (£600) from import tax. The EU is also phasing out its exemption: in July it replaced the €150 de minimis relief with a flat €3 customs duty.
Shein's global parent group listed on the Hong Kong stock exchange last month, valued at just over $26bn (£19.6bn) — far below the $100bn valuation it reached in an April 2022 fundraising round and the £50bn float previously considered. Investors' concerns about global regulatory changes contributed to the lower valuation.