GROWMARK, Inc. is a federated, regional agricultural co-operative that provides products and services to member co-operatives in Ontario and the mid-western United States. Local member co-operatives, in turn, provide farmers, businesses and consumers with crop inputs, energy products, feed and animal health products, grain handling systems, seed products, grain marketing services, and more.

UPI Energy LP is the energy supplier of choice to the GROWMARK System in Ontario.

In 1967, we pioneered commercial development of Canada's Athabasca oil sands — one of the world's largest petroleum resource basins. Since then, Suncor has grown to become a globally-competitive, Canadian-based integrated energy company with a balanced portfolio of high quality assets, a strong balance sheet and significant growth prospects.