Supervisors in mineral and metal processing supervise and coordinate the activities of workers engaged in mineral and metal processing and manufacturing. They are employed in mineral ore and metal processing plants such as copper, lead and zinc refineries, uranium processing plants, steel mills, aluminum plants, precious metal refineries, cement processing plants, clay, glass and stone processing plants and foundries.

Supervisors in petroleum, gas and chemical processing and utilities supervise and coordinate the activities of workers in the following unit groups: Central control and process operators, petroleum, gas and chemical processing (93101), Power engineers and power systems operators (92100), Water and waste treatment plant operators (92101), Chemical plant machine operators (94110) and Labourers in chemical products processing and utilities (95102). They are employed by petroleum and natural gas processing, pipeline and petrochemical companies, chemical and pharmaceutical companies, electric power utilities, water and waste treatment utilities and in a range of other industries and institutions.

Supervisors in food and beverage processing supervise and coordinate the activities of workers who operate processing and packaging machines, and workers who grade food and beverage products. They are employed in fruit and vegetable processing plants, dairies, flour mills, bakeries, sugar refineries, fish plants, meat plants, breweries and other food and beverage processing establishments.

Supervisors in plastic and rubber products manufacturing supervise and coordinate the activities of workers who operate processing machines and who fabricate, assemble and inspect rubber or plastic products. They are employed by rubber and plastic products manufacturing companies and in plastic parts divisions of other manufacturing companies.

Supervisors in forest products processing supervise and coordinate the activities of workers engaged in pulp and paper production and wood processing and manufacturing. They are employed by pulp and paper companies, paper converting companies, sawmills, planing mills, wood treatment plants, waferboard plants and other wood processing companies.

Supervisors in textile, fabric, fur and leather products processing and manufacturing supervise and coordinate the activities of workers engaged in textile, fabric, fur and leather products processing and manufacturing. They are employed by textile manufacturing companies, tanneries and other manufacturers of fabric, fur and leather products.