2024-03-27 · Richmond Hill · Full Time · Contract · Retail salespersons and visual merchandisers · ABOUT US Trans-Northern Pipelines Inc. (TNPI) operates regulated pipelines to safely transport the refined petroleum products (gasoline, diesel, aviation, and heating fuel) used by Canadian businesses and consumers every day. These pipelines connect refineries in Edmonton to Calgary, including the Calgary International Airport; and refineries in Nanticoke, Ont., and Montreal