The Association, located at Gracefield, Lower Hutt, and incorporated in 1946, was formed in 1945 to assist in the post-war development of the white-wares section of the clay industry, its activities being extended in 1951 to include also the manufacturers of heavy-clay products. The financial contribution from industry is based on the number of employees, and the control of the Association is vested in a council consisting of five representatives of member firms – two from the white-ware group and two from the heavy-clay group plus the president from either group – and two appointed by the Minister in Charge of Scientific and Industrial Research. There is also a management committee for each of the two groups.