In 1957, the New Zealanders W.K.A. Berry and C.H. Tyndale-Biscoe accomplished the first ascent of the Main Peak of Buni Zom from the steep razorlike north ridge The second ascent was in 1975 by Japanese Masao Okabe, Hideo Sato and Shigeru Tabe and third ascent was in 1979 by Americans Joe Reinhard and Richard J. Isherwood both from south face.