Winstone Wallboards is the major bulk importer of high purity Australian mineral Gypsum
in New Zealand. The Gypsum is used primarily for the manufacture of GIBŪ plasterboard.
Winstone Gypsum is a division of Winstone Wallboards created in 1994. Winstone Gypsum is
focussed on marketing Gypsum products in ground and screened form into the Horticultural,
Agricultural and other alternative industrial markets. A nationwide distribution network has
been established in New Zealand.
