Agriculture and Natural Resources

Impala Canada Ltd. / United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union, Local 9422

2024–2027 · ONA

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Sudbury Integrated Nickel Operations, A Glencore Company / Sudbury Mine, Mill And Smelter Workers Union, Local 598/Unifor

2021–2025 · Unifor

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Vale Canada Limited / United Steelworkers Local 6500

2021–2026 · USW

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Compass Minerals Canada Corp. (Goderich Mine) / Unifor Local 16-0

2021–2026 · Unifor

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Vale Canada Limited / United Steelworkers Local 2020-05

2021–2025 · USW

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Goldcorp Canada Ltd. / United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union, (United Steelworkers) Local 7580

2020–2023 · USW

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Burnbrae Farms Limited / United Food & Commercial Workers Canada, Local 175

2021–2024

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Burnbrae Farms Ltd / United Food and Commercial Workers Canada, Local 175

2024–2027

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Covia Canada Ltd. / United Steel, Paper And Forestry, Rubber, Manufacturing, Energy, Allied Industrial And Service Workers International Union, Local 5383

2024–2027 · ONA

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Carmeuse Lime (Canada) Limited / Unifor, Local 3264

2022–2026 · Unifor

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CRH Canada Group Inc. Operating as Dufferin Aggregates / Unifor Local 266

2022–2024 · Unifor

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FNX Mining Company Inc / United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union (United Steelworkers)

2020–2023 · USW

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Aecon Construction & Materials Limited / International Brotherhood Of Teamsters, Local Union No. 230

2020–2023 · Teamsters

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Amrize Canada Inc. / International Union of Operating Engineers, Local 793

2025–2029 · ONA

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Brechin Aggregates, a Division of LaFarge Canada Inc. / International Union of Operating Engineers, Local 793

2021–2023 · ONA

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Canada Building Materials Company / International Brotherhood Of Teamsters, Local 230

2022–2025 · Teamsters

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Carmeuse Lime (Canada) Limited / United, Steel, Paper And Forestry, Rubber, Manufacturing, Energy, Allied Industrial And Service Workers International Union, Local 16506-38

2019–2023 · ONA

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Covia Canda Ltd. / International Union of Operating Engineers, Local 793

2021–2024 · ONA

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CRH Canada Group Inc. Operating as Dufferin Aggregates / Cement, Lime, Gypsum And Allied Workers Division International Brotherhood Of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers And Helpers Local 488 Afl-Cio-Cfl

2020–2025 · ONA

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CRH Canada Group Inc. Operating as Dufferin Aggregates / Unifor Local 2669-05

2019–2024 · Unifor

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Dunnville Rock Products / Cement, Lime And Gypsum Allied Workers' Division Of Brotherhood Of Boilermakers, Iron Ship Builders, Blacksmith, Forgers And Helpers

2021–2026

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GreenFirst Forest Products (QC) Inc. Forest Management / United Steelworkers, Local 1-2010

2021–2025 · USW

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Integra Technologies / International Brotherhood Of Boilermakers, Local 128

2022–2024 · ONA

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Integra Technologies Ltd / International Brotherhood Of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers And Helpers, Local 128

2025–2026 · ONA

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Jeff Parnell Contracting Ltd. / International Union of Operating Engineers, Local 793

2021–2024 · ONA

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J G Stewart Construction Ltd / International Union of Operating Engineers, Local 793

2024–2027 · ONA

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Lafarge Canada Inc. / Cement, Lime, Gypsum and Allied Workers Division of International Brotherhood of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers and Helpers, Local D494

2020–2023 · ONA

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Lafarge Canada Inc. Coldawater Quarry Operation / Construction Workers Local 52 affiliated with CLAC

2024–2026

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Lafarge Canada Inc. / Construction Workers Union, CLAC Local 52

2021–2023

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Lafarge Canada Inc. / International Brotherhood Of Teamsters, Local 230

2020–2024 · Teamsters

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