US Sanctions Japan’s Bitbank Over Bitcoin Transfers

The U.S. Treasury’s Office of Foreign Assets Control added Japanese cryptocurrency exchange Bitbank to its sanctions list, identifying hundreds of millions of dollars in bitcoin transfers tied to illicit activity. The designation bars U.S. persons from conducting transactions with Bitbank and freezes any assets the exchange holds under U.S. jurisdiction.

The Treasury flagged bitcoin transfers that flowed through Bitbank and connected to criminal networks and sanctioned actors. Investigators traced large volumes of bitcoin moving through the exchange that, according to the agency, were used to convert or reroute funds associated with unlawful activity. The Treasury described the total value of the identified transfers as being in the hundreds of millions of dollars.

The designation requires U.S. banks, firms and citizens to end direct dealings with Bitbank and prohibits providing the exchange with financial, technological or other forms of support. Non-U.S. entities that continue significant transactions with Bitbank may face secondary sanctions or limits on access to the U.S. financial system. The Treasury also published identifying information tied to the designation to help virtual asset service providers and law enforcement screen and block related transactions.

Bitbank, founded in 2014, operates primarily in Japan and serves retail and institutional clients. The Treasury’s action is an administrative designation and does not itself bring criminal charges. The designation can have immediate operational effects, including freezing U.S. dollar funds, disrupting access to banking corridors and prompting global partners to end or pause relations with the platform.

Industry participants expect the designation to complicate deposit and withdrawal flows for customers who use the exchange for bitcoin trading. Market participants commonly reroute transactions to counterparties that are not listed, and some banks, payment processors and crypto service providers may cut ties quickly to limit regulatory risk.

The Treasury highlighted the role of virtual-asset exchanges in moving, layering and obscuring illicit proceeds and described sanctions as a tool to disrupt networks that exploit digital asset platforms for money laundering and sanctions evasion. U.S. authorities have increased scrutiny of virtual-asset service providers in recent years, citing ransomware payments, fraud and sanctions evasion as enforcement priorities. The Bitbank designation follows broader efforts to tighten oversight of crypto platforms and to hold intermediaries accountable when their services are used to process or conceal proceeds from criminal activity.