Blab Crypto
Thailands DSI Expands Probe Into $10 B Cryptomining and Money-Laundering Network
In a sweeping move, Thailand’s Department of Special Investigation (DSI) has broadened its investigation over a sprawling Chinese‑run network alleged to be engaged in illegal cryptocurrency mining and transnational money laundering. The scheme is estimated to move more than 10 billion baht—roughly US$300 million—in financial flows each year.
The expansion follows a 2025 operation by the DSI’s Technology and Cyber Crime Bureau that dismantled three major illegal mining networks. During that raid, authorities seized 6,390 cryptocurrency mining rigs and documented damage to the Provincial Electricity Authority (PEA) of more than 953 million baht. The DSI describes the case as one of the highest‑value illegal uses of state utilities in recent Thai history.
Investigators also uncovered evidence that some state officials may have assisted or facilitated the offenders. Consequently, the DSI has forwarded two case files to the National Anti‑Corruption Commission (NACC). Those files involve seven PEA officials, one law‑enforcement officer, and 13 investors or alleged accomplices.
The probe has now extended to Chinese investment groups believed to manage a large financial network in Thailand. DSI investigators have found information and evidence linking the network to money‑laundering activities stemming from technology‑related crimes, including call‑centre scams and transnational online gambling operations.
Bank‑account and corporate‑entity analysis revealed unusually high levels of financial activity connected to the network. The investigation shows that Myanmar nationals were used to withdraw cash from Thai financial institutions at a rate of roughly 30 million to 50 million baht per day. The total volume of transactions associated with the network is estimated at no less than 10 billion baht per year.
In addition, the DSI received information from U.S. law‑enforcement agencies indicating that Wang Yicheng, a key figure in the network, is a suspect in a major digital‑asset fraud case. The U.S. Secret Service seized digital assets linked to Wang worth more than US$17.8 million (about 620 million baht) in connection with total damage exceeding 2 billion baht.
The DSI has issued arrest warrants for eight suspects in the network, comprising four Chinese financiers and four Myanmar team members. Authorities are also seeking approval for seven additional arrest warrants and have summoned five other individuals to acknowledge charges.
The department said it would accelerate the collection of evidence in order to finalise the case file and submit it to special case prosecutors for legal action.
According to the DSI, illegal electricity use for cryptocurrency mining is not merely theft or an attempt to avoid electricity bills. It is also a key mechanism used by transnational criminal organisations to generate income, launder money and drive technology‑related crime networks. The DSI said such activities have wide‑ranging impacts on Thailand’s economic security and financial system.
At present, the investigation is ongoing. The DSI is gathering additional evidence and preparing to file the expanded case files with prosecutors. The outcome of the legal proceedings, the status of the arrest warrants, and any further regulatory or enforcement actions remain to be determined.
The case highlights the challenges that Thailand faces in policing the intersection of cryptocurrency, electricity consumption, and cross‑border financial crime. It also underscores the need for coordinated domestic and international cooperation to address complex, transnational illicit networks that exploit digital assets and state utilities.
The DSI’s actions are part of a broader effort to strengthen Thailand’s regulatory framework for digital assets and to protect the integrity of its energy and financial sectors. The investigation’s progress will be closely watched by regulators, industry participants, and the public.
The expansion follows a 2025 operation by the DSI’s Technology and Cyber Crime Bureau that dismantled three major illegal mining networks. During that raid, authorities seized 6,390 cryptocurrency mining rigs and documented damage to the Provincial Electricity Authority (PEA) of more than 953 million baht. The DSI describes the case as one of the highest‑value illegal uses of state utilities in recent Thai history.
Investigators also uncovered evidence that some state officials may have assisted or facilitated the offenders. Consequently, the DSI has forwarded two case files to the National Anti‑Corruption Commission (NACC). Those files involve seven PEA officials, one law‑enforcement officer, and 13 investors or alleged accomplices.
The probe has now extended to Chinese investment groups believed to manage a large financial network in Thailand. DSI investigators have found information and evidence linking the network to money‑laundering activities stemming from technology‑related crimes, including call‑centre scams and transnational online gambling operations.
Bank‑account and corporate‑entity analysis revealed unusually high levels of financial activity connected to the network. The investigation shows that Myanmar nationals were used to withdraw cash from Thai financial institutions at a rate of roughly 30 million to 50 million baht per day. The total volume of transactions associated with the network is estimated at no less than 10 billion baht per year.
In addition, the DSI received information from U.S. law‑enforcement agencies indicating that Wang Yicheng, a key figure in the network, is a suspect in a major digital‑asset fraud case. The U.S. Secret Service seized digital assets linked to Wang worth more than US$17.8 million (about 620 million baht) in connection with total damage exceeding 2 billion baht.
The DSI has issued arrest warrants for eight suspects in the network, comprising four Chinese financiers and four Myanmar team members. Authorities are also seeking approval for seven additional arrest warrants and have summoned five other individuals to acknowledge charges.
The department said it would accelerate the collection of evidence in order to finalise the case file and submit it to special case prosecutors for legal action.
According to the DSI, illegal electricity use for cryptocurrency mining is not merely theft or an attempt to avoid electricity bills. It is also a key mechanism used by transnational criminal organisations to generate income, launder money and drive technology‑related crime networks. The DSI said such activities have wide‑ranging impacts on Thailand’s economic security and financial system.
At present, the investigation is ongoing. The DSI is gathering additional evidence and preparing to file the expanded case files with prosecutors. The outcome of the legal proceedings, the status of the arrest warrants, and any further regulatory or enforcement actions remain to be determined.
The case highlights the challenges that Thailand faces in policing the intersection of cryptocurrency, electricity consumption, and cross‑border financial crime. It also underscores the need for coordinated domestic and international cooperation to address complex, transnational illicit networks that exploit digital assets and state utilities.
The DSI’s actions are part of a broader effort to strengthen Thailand’s regulatory framework for digital assets and to protect the integrity of its energy and financial sectors. The investigation’s progress will be closely watched by regulators, industry participants, and the public.
