[4] The Indonesian government renamed the NW summit after professor Sumantri Brodjonegoro [id], Minister of Energy and Mineral Resources of the Republic of Indonesia, after he had died in office in 1973 at the age of 47.

The neighboring and, at the time, higher SE summit of Ngga Pulu was first climbed by a Dutch expedition in 1936 (Anton Colijn, Jean Jacques Dozy and Frits Wissel).

The 600 m high north cliff was first climbed by Reinhold Messner in a solo effort on 27 September 1971, after he had second-ascended the Carstensz Pyramid with his client Sergio Bigarella earlier in the week.

Due to the melting of the Northwall Firn from the SE peak of Ngga Pulu, this summit is now the highest point of the north ridge of Mount Carstensz.

Furthermore, due to the complete vanishing of the Meren Glacier, its topographic prominence has increased from what would have been ~200 m to ~350 m. Sumantri could be considered the second highest independent mountain of Oceania, and it features on some Seven Second Summits lists.