PRODUCTION OF ELEMENTAL SULFUR AND BENTONITE .
New Zealand imports most of its sulfur, with minor amounts coming from the refinery at Marsden Point in Whangarei. Very little is produced from New Zealand''s natural resources. It is estimated that, on average, about 200,000 tons of sulfur are imported per annum and primarily used for the manufacture of sulfuric acid (Martin and Clark, 2000)