[Global Watchdog Alerts Over New Two‑Storey Uranium Enrichment Facility in North Korea]
The United Nations atomic‑energy watchdog confirmed that North Korea has constructed a new two‑storey uranium‑enrichment facility, labeling the development as a matter of serious concern.
Located within the sprawling Yongbyon nuclear complex, the recently completed building is described as able to accommodate up to 28 centrifuge cascades for uranium enrichment.
A report issued last month by the International Atomic Energy Agency indicated that Pyongyang has commenced operation of an expanded annex at a different enrichment site.
These developments underscore a continual expansion of North Korea’s previously sanctioned nuclear infrastructure, with the agency—now free of inspectors since its 2009 withdrawal—relying heavily on satellite imagery for verification.
“The continuation and further development of the DPRK’s nuclear programme are clear violations of relevant UN Security Council resolutions and are deeply regrettable,” IAEA director Rafael Grossi said in a statement earlier this week.
The international organization first referenced the facility in June, although Director‑General Rafael Grossi had hinted at the presence earlier during the year.
Earlier in June, the agency reported that South Korea’s leader, Kim Jong Un, attended the inauguration of a newly opened nuclear‑material production plant on June 3, identifying it as the Yongbyon enrichment facility.
He lauded the dramatically widened production capacity, stating that the upgrade could enable the implementation of larger‑scale programmes, as reflected in the agency’s assessment.
Although North Korea ranks among the world’s least developed economies, the regime allocates several hundred million dollars annually to a covert nuclear program; a 2022 analysis by a non‑proliferation institute estimated these expenditures at roughly $640 million.
“What makes North Korea’s nuclear programme so concerning is that many of its facilities remain hidden and untraceable, complicating targeting efforts,” Edward Howell, a lecturer at the University of Oxford noted to the BBC.
Beyond Yongbyon, additional sites—such as Kangson—are known to host uranium work, and because North Korea embeds its nuclear strategy tightly into both foreign and domestic policy, more concealed production locations are anticipated.
The agency also reported that activity had begun at a separate enrichment complex in Kangson, located east of Pyongyang, starting in January; a dedicated annex there had been erected in 2024, according to the report.
In a later April briefing, officials alleged that North Korea seemed to be enhancing its bomb‑fabrication capabilities, with monitoring focused on the alleged growth of Yongbyon.
Under President Kim, the nuclear programme has accelerated markedly, coinciding with a record series of missile launches; the entity has fired multiple intercontinental ballistic missiles since initiating its range‑expanding experiments in 2017.
To date, the nation has carried out six nuclear detonations, the most recent occurring in September 2017.

