Schools which had opted into the programme now needed to place orders for products, and those which had not yet opted into the programme could still do so, Tinetti said.
The Ministry of Education held a competitive tender process to choose the suppliers, and had now signed contracts with four.
Three of them are New Zealand brands.
Involved in the first phase of the nationwide roll-out were Organic Initiative (Oi), The Warehouse Group, Crimson Organic and Kimberly-Clark (U By Kotex).
ROBERT KITCHIN/Stuff
Minister Jan Tinetti, a former Tauranga school principal, has seen firsthand how a scheme like this will help students. (File photo)