@Chlidonias Unfortunately not. The language barrier made it difficult. The staff only kept on mentioning 'Tarsius kalimantan', which indicates Borneo. It might not verify subspecies though, as this could be the easiest way for the Indonesian staff to explain to me which species it was. Species bancanus is famous for being the only tarsier in Borneo.
I hope in the future, someone can verify that it is indeed Cephalopachus bancanus borneanus.