US Indicts Chinese Firms Using Crypto for Fentanyl Trafficking

• Federal grand jury in Ohio indicts two Chinese pharmaceutical firms and six individuals for fentanyl precursor trafficking.
• Cryptocurrency was the primary payment method used to facilitate international transactions and launder proceeds.
• Medetomidine, an animal tranquilizer, was sold as a cutting agent to increase fentanyl yields by 20 times.
• Total on-chain inflows to Chinese precursor vendors reached $39.1 million in 2025.

Indictment and Operation Box Cutter

A federal grand jury in Ohio has charged Shandong Believe Chemical Company Pte Ltd. and Shandong Ranhang Biotechnology Co. Ltd., along with six Chinese nationals, for their roles in a global drug trafficking network. This enforcement action is part of the FBI's Operation Box Cutter, an initiative designed to dismantle the financial and logistical infrastructure of international fentanyl distribution.

In addition to trafficking charges, three of the defendants face allegations of providing material support to a Mexican drug cartel, which the U.S. government classifies as a foreign terrorist organization. If convicted, the defendants face severe penalties, including a maximum of life in prison for drug trafficking and up to 20 years for money laundering and terrorism-related offenses.

The Role of Cryptocurrency in Money Laundering

Authorities highlighted that cryptocurrency is central to the operation of these illicit supply chains. According to reports from TRM Labs, approximately 97% of drug precursor manufacturers based in China now accept digital assets. The flow of funds typically follows a sophisticated layering pattern:

• Stablecoins are initially received at a collection address.
• Funds are fragmented and moved through a series of pass-through wallets.
• The assets are eventually converted into fiat currency at cross-border exit points.

Data indicates a steady rise in crypto-related payments for these substances, with inflows growing from $30.9 million in 2023 to $34.7 million in 2024, and reaching $39.1 million in 2025.

Production Impact and Enforcement Strategy

The indictment reveals that the companies marketed chemicals like medetomidine, an animal tranquilizer used to dilute fentanyl. This cutting agent allows traffickers to expand the volume of their product significantly; a single kilogram of fentanyl can be multiplied into enough doses to generate millions of street-level units.

U.S. Attorney Dominick S. Gerace II stated that the objective is to target the entire supply chain, from the pharmaceutical suppliers in China to the distributors in the United States. This marks a strategic shift toward prosecuting the upstream facilitators of the opioid crisis, including the holders of the crypto wallets used to move the proceeds of these illegal sales.