Shein has received preliminary approval from the UK’s Financial Conduct Authority (FCA) for its initial public offering (IPO) in London, moving closer to a stock market listing amid challenges posed by US tariffs affecting its operations. The approval comes as Shein navigates uncertainties regarding its valuation, with some investors suggesting it should be lowered from $66 billion to $30 billion, and raises questions about the sustainability of its business model in the US market. Final approval from the FCA and Chinese regulators is still needed for the IPO to proceed, with concerns over allegations of forced labor in its supply chain.