1979
The Polaris mill, airstrip and ore ship on High Arctic ice.
The company
Cominco is a Canadian company, incorporated January 9, 1906, whose principal business is zinc, lead and chemical fertilizers, with head office in Vancouver.
Cominco Annual Report 1979, p. 2
That year
Refined zinc production at Trail was 229,000 tons in 1979, compared with 216,000 tons in 1978; refined lead at Trail was 140,000 tons.
Cominco Annual Report 1979, p. 5