[11] Reporting by a US-based researcher in August 2019 showed that the plant was leaking waste materials, leading to health concerns over those that live near the plant and fears that the pollution would travel down the Ryesong river to South Korean waters.

[14] On 28 August 2019, the South Korean Ministry of Unification announced that testing of a portion of the Han River along the Northern Limit Line was underway to determine the level of pollution and if any substantial radiation risk existed.

[15] In 2013 the North Korean Central Government and Taipower began negotiations about shipping nuclear waste to P‘yŏngsan.

[16] The deal was "worth US$75.66 million envisaged shipping 60,000 barrels of nuclear waste, and a further 14,000 barrels in the second stage, with a total value of $150 million and that the North Koreans were after the deal as a source of foreign exchange" but has run into difficulty when Taipower could not get an "export permit for the waste from the Taiwanese Atomic Energy Council".

However, North Korea (through its attorney, Tsai Hui-ling) is suing Taipower for breach of contract.