Enviro-Mark Diamond
Enviro-Mark Diamond is the highest level in the Enviro-Mark programme which ranges from Bronze to Silver to Gold to Platinum and finally to Diamond. There are less than 20 individual member companies in New Zealand who have achieved this status. The Stevenson quarries are the only quarrying business in New Zealand to hold Diamond status.
To find out more about the Enviro-Mark programme access the link provided
http://www.enviro-mark.co.nz/index.asp