Hong Kong jails ex-banker over $470K USDT bribes

Hong Kong has jailed former China Construction Bank (Asia) relationship manager Lam Chun-yin for four years after he admitted accepting more than $470,000 in Tether to authenticate false bank instruments carrying a stated value above $1.6 billion.

The Independent Commission Against Corruption said on Sept. 18 that District Court Judge Ernest Lin Kam-hung sentenced the 32-year-old after his guilty plea to one count of conspiracy for an agent to accept advantages under Hong Kong’s Prevention of Bribery Ordinance and Crimes Ordinance.

The court ordered Lam to repay approximately HK$3.7 million to CCB (Asia), an amount equal to the bribes identified in the case. ICAC said the judge started from a six-year prison term and reduced it by one-third because Lam pleaded guilty, leaving a four-year sentence after finding no exceptional reason for another reduction.

Hong Kong bribery case centered on false bank guarantees

At the time of the offenses, ICAC said Lam worked in the Consumer Banking Division at CCB (Asia)’s Causeway Bay retail branch, where he served individual customers. The agency said his role did not cover business credit facilities or letters of credit, and the bank had never authorized him to handle such products.

Vesttoo Limited, which has since ceased operations, ran a platform for insurance-related investment transactions. ICAC said investors using the platform had to provide bank-issued standby letters of credit so an issuing bank could ultimately cover relevant losses if an investor failed to meet its obligations.

Yu Po Holdings Limited entered the platform as an investor in early 2022. The anti-graft agency said a criminal group then arranged for Lam to falsely present himself as China Construction Bank’s contact person for standby letters of credit connected with Yu Po.

Between April and June 2022, Lam admitted conspiring with a Vesttoo department head and other associates to receive more than $470,000 worth of Tether. ICAC said he authenticated multiple standby letters of credit that falsely purported to come from China Construction Bank and two collateral letters presented as Yu Po documents endorsed by the bank. The stated value of the instruments exceeded $1.6 billion.

An earlier ICAC charge announcement gave more detail about the document count. In June 2025, prosecutors alleged that Lam had been involved with 88 false standby letters of credit and two false collateral letters. His later guilty plea covered the bribery conspiracy, while a separate conspiracy charge involving false instruments was left on the court file.

CCB Asia uncovered the scheme through an internal review

CCB (Asia) found the problem during an internal investigation and then filed a corruption complaint, according to ICAC. The agency said its inquiry established that neither China Construction Bank nor its related companies had issued any of the standby letters of credit or collateral letters involved in Lam’s case.

During sentencing, Judge Lin described Lam’s criminality as “higher than in other similar cases,” according to ICAC. The judge cited the use of forged bank documents, the potential risk faced by the bank and damage to Hong Kong’s standing as an international financial center.

ICAC said people involved in the scheme had tried to make the bribery harder to detect by routing payments through cryptocurrency. The commission said it had applied for court warrants to arrest other individuals implicated in the case, but its Sept. 18 public statement did not identify the wanted people.

Public ICAC materials reviewed for this report do not disclose wallet addresses or transaction hashes for Lam’s Tether payments. The specific transfers therefore cannot be independently matched to public blockchain transactions from the information released by the agency.

The use of USDT in the case does not mean the payments were untraceable. In related coverage,crypto.news reported that Hong Kong investigators traced 8,127 USDT in a separate trafficking case to an exchange account and then to a bank transfer. The Hong Kong Court of Appeal relied on evidence from that payment trail when it upheld a 56-month prison term in August.

Vesttoo-linked claims continue through U.S. courts

The conduct behind Lam’s Hong Kong case sits within a larger series of disputes tied to Vesttoo’s reinsurance collateral. Vesttoo and affiliated entities filed Chapter 11 cases in Delaware in August 2023 after questions emerged over letters of credit used to support insurance and reinsurance transactions. A Vesttoo liquidating trust remained active in the bankruptcy docket in 2026.

A separate New York case brought by White Rock Insurance, an Aon subsidiary, concerns letters of credit allegedly used in Vesttoo transactions. White Rock alleges its segregated insurance cells released roughly $140 million in premiums after relying on purported collateral associated with China Construction Bank entities. The allegations remain civil claims and are not findings from Lam’s Hong Kong criminal sentence.

On April 21, New York Supreme Court Justice Andrea Masley rejected most of China Construction Bank’s attempt to dismiss White Rock’s amended complaint. The court allowed claims including fraud-related and negligent-supervision theories to continue, while dismissing a separate negligence claim as duplicative.

At the motion-to-dismiss stage, the New York court treated White Rock’s pleaded facts as allegations that still require proof. The order said there were factual questions over whether Lam had actual or apparent authority and whether CCB entities could face liability for his alleged conduct. The court expressly stated that those questions would have to be developed later in the litigation.

Another U.S. case involving Vesttoo collateral reached the Fifth Circuit Court of Appeals in April. Porch.com sued reinsurance broker Gallagher Re over duties connected with a reinsurance arrangement involving Vesttoo, White Rock and collateral expected from China Construction Bank.

The Fifth Circuit affirmed dismissal of some Porch claims but revived one contract claim concerning post-placement administrative services and sent that part of the case back for further proceedings. The appeals court said the scope of services customarily performed by a reinsurance intermediary presented a factual question that should not have been resolved through a motion to dismiss.

ICAC is still seeking other people tied to the case

The Sept. 18 sentencing does not close ICAC’s investigation into every person connected to the false instruments. The agency said it had sought warrants for other implicated individuals after Lam’s case reached sentencing.

ICAC had previously identified Vesttoo employee Udi Ginati and intermediary Wan Cheuk-lun in its June 2025 charging announcement, saying Lam was accused at the time of receiving Tether from Ginati, Wan and others. The same announcement separately charged former Standard Chartered Bank (Hong Kong) senior relationship manager Lee Ka-man with conspiracy to use four false standby letters of credit purportedly issued by Standard Chartered. Those earlier accusations must be distinguished from Lam’s Sept. 18 conviction and sentence.

The anti-graft agency said CCB (Asia) and Standard Chartered Bank Hong Kong cooperated with its investigation when the charges were announced. Its Sept. 18 statement said CCB (Asia) had lodged the corruption complaint after detecting the conduct internally and continued assisting investigators.

Hong Kong authorities have continued dealing with crypto-linked crime in other cases during 2026. Hong Kong police received 255 reports tied to the alleged Fun Coffee crypto investment scheme, with reported losses reaching HK$104 million. Police said the scheme involved USDT-based investment plans and had led to several arrests by August.

Separately, the city has continued expanding its regulated digital-asset framework. crypto.news reported on Sept. 17 that Hong Kong plans to expand regulated stablecoin trading and tokenized-asset infrastructure under its 2026 policy program.

ICAC’s latest public statement in Lam’s case says the commission is pursuing the remaining people implicated through court-issued arrest warrants, while Lam must serve the four-year sentence and repay approximately HK$3.7 million to CCB (Asia).