As part of a joint undertaking with HRNK to use satellite imagery to shed light on human suffering in the Democratic People’s Republic of Korea (DPRK, more commonly known as North Korea), AllSource Analysis has been monitoring activity at political prison facilities throughout North Korea. This report details activity observed during the past two years at the prison facility commonly identified as Camp No. 25, but also known as Kwanli-so No. 25, Political Prison Camp No. 25 or the Susŏng-dong Kyo-hwa-so, and updates HRNK’s February 2013 and June 2015 reports on the same subject.