Thursday, October 2, 2025 - A Chinese woman has been convicted in the United Kingdom in connection with what police described as the world’s largest single cryptocurrency seizure, valued at more than £5.5 billion.
Zhimin Qian, also known as Yadi Zhang, pleaded guilty at
Southwark Crown Court on Monday, September 29, to charges of acquiring and
holding vast sums of money illegally, converted into bitcoin.
According to the Metropolitan Police, Qian, 47, masterminded
a large-scale fraud operation in China between 2014 and 2017, defrauding more
than 128,000 people. The proceeds were hidden in bitcoin wallets, at least
61,000 of which have since been seized by investigators.
“Between 2014–2017, Zhang orchestrated a large-scale fraud
in China through defrauding over 128,000 victims and went on to store the
illegally obtained funds in bitcoin assets,” the Met said in a statement.
After fleeing China using false papers, Qian entered the UK
in September 2018. Police said she attempted to launder the stolen money by
investing in property with the help of an accomplice, Jian Wen.
Her arrest ended a seven-year international investigation
that spanned multiple jurisdictions and required the review of thousands of
documents. Detective Sergeant Isabella Grotto, who led the probe, described the
outcome as the result of “years of painstaking work.”
“When our team located Zhimin Qian, she had been evading
justice for five years, and her arrest triggered a complex investigation
requiring evidence from multiple jurisdictions and the careful review of
thousands of documents,” she said.
Will Lyne, head of the Met’s Economic and Cybercrime
Command, added: “This is one of the largest money laundering cases in UK
history and among the highest-value cryptocurrency cases globally.”
Wen, a 44-year-old former takeaway worker, was jailed last
year for six years and eight months for her role in helping Qian launder the
proceeds. Prosecutors said Wen’s sudden move from living above a restaurant to
a multimillion-pound rented house in London, along with purchases including
Dubai properties worth over £500,000, raised suspicion. Investigators
later linked her to cryptocurrency transactions worth more than £300m.
According to the Crown Prosecution Service, “Met
investigators proved she had been involved in facilitating the movement of a
cryptocurrency wallet, which contained 150 bitcoin. At the relevant time this
was valued at £1.7m.”
Qian remains in custody while she awaits sentencing.

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