On 3 June 2026, the leader of North Korea visited a new enrichment facility. According to analysis published by VERTIC, the facility is a new enrichment plant in Yongbyon, described in North Korean media as Nuclear Materials Construction Factory. The IAEA also stated that the layout of the facility shown on photographs is consistent with the building in Yongbyon. The building, in turn, is similar to the enrichment facility in Kangson.

VERTIC estimates that after the addition of this new facility to the existing ones in Yongbyon and Kangson the total enrichment capacity in DPRK reached about 100 tSWU/year (90,900 kgSWU/year in VERTIC's estimate). VERTIC estimates that this corresponds to the capability of producing about 375 kg or weapon-grade HEU a year.