North Korea’s most luxurious palace for visiting foreign leaders has seen major upgrades in recent months, according to NK Pro analysis of satellite imagery, possibly in relation to plans to receive another special guest.

Russian leader Vladimir Putin used the Kumsusan Guesthouse in east Pyongyang most recently in June, after it was built rapidly just ahead of a visit by Chinese leader Xi Jinping five years earlier. 

Planet Labs satellite imagery reveals the addition of new annexes to the main residence between Putin’s June visit and mid-August. Work to build new facilities on