Hoani Āneta signed the Tauranga sheet of the Treaty of Waitangi at Tauranga, probably in April 1840. He was a Ngāi Te Rangi rangatira (chief) and a mission assistant for Alfred Brown of the Anglican Church Missionary Society (CMS) in Tauranga. As well as signing the treaty, Āneta acted as a witness along with CMS missionaries Henry Taylor and James Stack.
For further information and sources see Debbie McCauley, The Treaty of Waitangi in Tauranga: Te Tiriti o Waitangi ki Tauranga Moana: https://debbiemccauleyauthor.wordpress.com/heritage/cultural-heritage/te-tiriti-o-waitangi-ki-tauranga-moana-treaty-signatories