[2] Sifto Canada is wholly owned by Compass Minerals.

Sifto was founded by Sam Platt who was prospecting for oil in 1866, and instead of oil encountered rock salt in Goderich Harbour on Lake Huron.

The Goderich mine developed into the largest salt mine in Canada and remains a key source of salt for the company.

[3] In addition to distribution facilities across the country, Sifto Canada operates the following production facilities:[4][5] The Goderich salt mine has a production capacity of 9 million tons per year, and produces 7,250,000 tons per year, while the evaporation plants in Goderich, Unity, and Amherst have the capacity to produce a total of more than 470,000 tons.

[7] It is the largest underground salt mine in the world.