The bus carrying 54 people crashed down a 100m bank off State Highway 2 in the Whareratas on Christmas Eve.
Three passengers, Sione Taumalolo, 11, Talita Moimoi, 33, and Leotisia Malakai, 55, lost their lives.
The bus contained teenage members of a touring band from Mailefihi Siu’ilikutapu College in Tonga, along with their teachers and supporters, travelling to Gisborne for a Christmas Day performance.
Two of the people hospitalised after the crash, Scott Taufa’ao, in his 30s, and Tevita Lokotui, 18, have been in Hawke’s Bay Hospital.