About 80 per cent of the province's aggregate production takes place in southern Ontario, where the demand for aggregates and aggregate-derived products is the highest.
In 2011, there were about 3,700 licensed aggregate sites on private land in Ontario and about 2,800 aggregate permits on Crown land.
A significant part of the aggregates produced in Ontario are used by public authorities for the construction and maintenance of public infrastructure such as roads and bridges. The cost of transporting aggregates is estimated to be up to 60 per cent of its total cost. Because of the high cost of moving aggregates, the economic value of an aggregate deposit is based on how close the deposit is to its final destination, as well as the quantity and quality of the deposit.
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