Peries was not able to complete the climb as his oxygen tank failed before he reached the summit, but his partner Kuru-Utumpala did manage to reach the summit of Mount Everest successfully at 5:03 AM on 21 May 2016. This gave her the distinction of becoming the first Sri Lankan woman to summit Mount Everest. Peries attained a height of , which is beyond Camp IV (the final camp on the southern ascent route, on the South Col).