Initially, the company was primarily involved in granite quarrying but later diversified and expanded to include a modern quarry plant near the quarries. The introduction of the steam drill in the 1920s permitted quicker removal of the stone. The use of explosives and pneumatic drills and the adoption of electric batteries increased production.
History of granite. It was not until railway construction began in the mid19th century that industrial production of granite began. Before that time, known deposits were considered to be too far from the Montréal and Québec consumer areas. For a long time, fieldstone, with its rounded shape, was used to build fireproof houses.