Ensuring minimal variation in the final product is something the team strive for every hour of our 24/7 operation. First comes the raw materials which we source from a reputable overseas supplier on a long-term contract. Our supplier’s plant produces 4 million tonnes per annum and so achieves both economies of scale and a consistent and reliable product. To understand the relative size of this, note that the total NZ cement market is 1.5 million…