Takeshi Ebisawa, 61, has been jailed since April 2022 on the drug and weapons charges, along with his Thai co-defendant Somphop Singhasiri, following years of investigations by the U.S. Drug Enforcement Administration.
In February 2024, he was also accused of trying to sell military-grade nuclear material, along with narcotics including heroin and methamphetamine, to buy weapons including surface-to-air missiles for armed groups in Myanmar.
He pleaded guilty to a total of six charges in January 2025.
"Takeshi Ebisawa has been held accountable for his crimes, including an attempt to sell weapons-grade plutonium to Iran and to flood New York with deadly narcotics," said John Eisenberg, the assistant attorney general for national security.