A 47-year-old Nepali sherpa has achieved a mountaineering milestone by ascending all 14 summits in the world that are higher than 8,000 meters (26,247 feet) twice, according to his agency.

On Thursday morning, Sanu Sherpa of the Sankhuwasabha district in eastern Nepal summited Pakistan’s Gasherbrum II, the 13th-highest mountain in the world at 8,035 meters, according to his climbing firm, Pioneer Adventure.

“He is the only person in the world to scale each of the 14 highest mountains twice,” Nibesh Karki, the company’s executive director told Reuters. No further details were available.

Eight of the 14 highest peaks, including Mount Everest, are in Nepal. The other six are in Pakistan and the Tibet region of China.