---
title: "Yakuza leader pleads guilty to nuclear material trafficking"
description: "CBRNe World provides those tasked with defending against CBRN and IED threats with the essential practical, scientific and political information. Access the current and previous issues of the magazine by registering as a member."
url: "https://cbrneworld.com/news/subscribers/yakuza-leader-pleads-guilty-to-nuclear-material-trafficking"
date: "2026-07-30T21:53:39+00:00"
language: "en-GB"
---

#  Yakuza leader pleads guilty to nuclear material trafficking

 Written by Zoe Rutherford on 10 January 2025.

Originally published by Security News Wire

Takeshi Ebisawa, 60, of Japan, has pleaded guilty to conspiring with a network of associates to traffic nuclear materials, including uranium and weapons-grade plutonium, from Burma to other countries, as well as to international narcotics trafficking and weapons charges.

According to the court documents and evidence presented at court, since at least in or about 2019, the DEA investigated Ebisawa in connection with large-scale narcotics and weapons trafficking. During the investigation, Ebisawa unwittingly introduced an undercover DEA agent (UC-1), posing as a narcotics and weapons trafficker, to Ebisawa’s international network of criminal associates, which spanned Japan, Thailand, Burma, Sri Lanka, and the United States, among other places, for the purpose of arranging large-scale narcotics and weapons transactions. Ebisawa and his network, including his co-defendants, negotiated multiple narcotics and weapons transactions with UC-1.

Beginning in early 2020, Ebisawa informed UC-1 and a DEA confidential source (CS-1) that Ebisawa had access to a large quantity of nuclear materials that he wanted to sell. Later that year, Ebisawa sent UC-1 a series of photographs depicting rocky substances with Geiger counters measuring radiation, as well as pages of what Ebisawa represented to be lab analyses indicating the presence of thorium and uranium in the depicted substances. In response to Ebisawa’s repeated inquiries, UC-1 agreed, as part of the DEA’s investigation, to help Ebisawa broker the sale of his nuclear materials to UC-1’s associate, who was posing as an Iranian general (the General), for use in a nuclear weapons program. Ebisawa then offered to supply the General with “plutonium” that would be even “better” and more “powerful” than uranium for this purpose. Ebisawa further proposed, together with two other co-conspirators (CC-2 and CC-3), to UC-1 that CC-1 sell uranium to the General, through Ebisawa, to fund CC-1’s weapons purchase.

Thereafter, on a Feb. 4, 2022, videoconference, CC-2 told UC-1 that CC-1 had available more than 2,000 kilograms of Thorium-232 and more than 100 kilograms of uranium in the compound U3O8 — referring to a compound of uranium commonly found in the uranium concentrate powder known as “yellowcake” — and that CC-1 could produce as much as five tons of nuclear materials in Burma. CC-2 also advised that CC-1 had provided samples of the uranium and thorium, which CC-2 was prepared to show to UC-1’s purported buyers. CC-2 noted that the samples should be packed “to contain … the radiation.”

With the assistance of Thai authorities, the nuclear samples were seized and subsequently transferred to the custody of U.S. law enforcement. A nuclear forensic laboratory in the United States examined the nuclear samples and determined that both samples contain detectable quantities of uranium, thorium, and plutonium. In particular, the laboratory determined that the isotope composition of the plutonium found in the nuclear samples is weapons-grade, meaning that the plutonium, if produced in sufficient quantities, would be suitable for use in a nuclear weapon.

Ebisawa pleaded guilty to six counts contained in the superseding indictment.

A federal district court judge will determine any sentence after considering the U.S. Sentencing Guidelines and other statutory factors.

 [Threat](https://cbrneworld.com/component/tags/tag/threat), [Nuclear](https://cbrneworld.com/component/tags/tag/nuclear)

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