KEY POINTS
  • A trove of confidential bank documents reviewed by NBC News offers a rare glimpse into how North Korea — and other rogue actors — move illicit cash across borders despite international sanctions designed to block Pyongyang's access to the global financial system.
  • The suspected laundering by North Korea-linked organizations amounted to more than $174.8 million over a period of several years, with transactions cleared through U.S. banks, including JPMorgan and the Bank of New York Mellon, according to the documents.
  • The documents cover a period mainly from 2008 to 2017, during which both the Obama and Trump administrations steadily tightened sanctions against North Korea to try to prevent the regime from building up its nuclear weapons and ballistic missile arsenal.
North Korean leader Kim Jong Un takes part in a meeting of the Political Bureau of the Central Committee of the Workers' Party of Korea (WPK) in this image released by North Korea's Korean Central News Agency (KCNA) on April 11, 2020.

North Korea carried out an elaborate money laundering scheme for years using a string of shell companies and help from Chinese firms, moving money through prominent banks in New York, according to confidential bank documents reviewed by NBC News.

Wire transfers from North Korean-linked firms with opaque ownership sometimes came in bursts, only days or hours apart, and the amounts transferred were in round figures with no clear commercial reasons for the transactions, according to the documents.