However, by the end of World War II the town's main employers were Ganong Bros. Limited, Canada's oldest candy company, established 1873; and the St. Croix Cotton Mill, Canada's second largest textile mill, with 20,000 spindles, which opened its doors in June 1882 and operated its own hydro-electric generating station, the Milltown Dam. Electricity generated by the Milltown Dam is exported to the United States, connected to a 69kV transmission circuit owned by the Eastern Maine Electric Cooperative, an electric utility serving Calais. In 1957, the textile mill closed, and it was demolished in 1972. At one time, the St. Croix Cotton Mill employed as many as 1200 persons at peak periods. Ganong remains a key employer.