Dominic Lemieux

Dominic Lemieux

Director, District 5 – Québec

Dominic Lemieux became the USW District 5 (Quebec) Director in April 2020, and he was re-elected in 2021. He was appointed as Assistant to the District 5 Director in 2016 and before that, he worked as the USW Regional Co-ordinator for Quebec’s North Shore region.

A native of the Bas-Richelieu region of southwestern Quebec, he is the father of two children, Alexandre and Francis.

Lemieux is the vice-president of the Quebec Federation of Labour (Fédération des travailleurs et travailleuses du Québec) and a member of the board of directors of the federation’s development capital fund, the Fonds de solidarité FTQ. He is also a member of the Board of Directors of Quebec’s workplace health and safety agency, the Commission des normes, de l'équité, de la santé et de la sécurité du travail, as well as the Institut national des mines du Québec, which supports and advises the government in its responsibility for education in the mining sector.

Since 2021, Lemieux has been actively involved with a working committee for Milieux alliés contre la violence conjugale, a campaign which engages employers and unions to be allies in ending domestic violence.

Following his studies in mining, he began his career in the gold mines of Quebec’s Abitibi region, then went to work at the Stelco steel plant (now ArcelorMittal) in Contrecoeur. He quickly developed an interest in workplace health and safety and became an activist on the USW Local 6951 executive board.

Lemieux was appointed as a USW Staff Representative in 2008. He travelled throughout Quebec as a member of the union’s organizing team. He has led major negotiations with multinationals such as Rio Tinto, Alcoa, Lafarge, ArcelorMittal, Glencore and many others. He was a servicing representative for Local 9490 members at the Alma aluminum smelter who were locked out by Rio Tinto but eventually won a collective agreement that restricted the use of sub-contractors. He also was the servicing representative for one of the largest USW locals in North America, Local 8922, which represents over 16,000 private security workers across Quebec.

Lemieux holds a certificate in workplace health and safety from the University of Montreal and completed the Harvard University Trade Union Program. He earned a graduate degree in industrial relations and coaches student teams in collective bargaining competitions.

Lemieux chaired the Quebec Federation of Labour’s Youth Committee from 2007 to 2009 and played a key role in a lengthy campaign that in 2018 led to a legislated ban on two-tier pension and benefit plans in Quebec workplaces. Under his leadership, Quebec Steelworkers have led a campaign for legislative reform to better protect workers’ pensions and benefits in corporate bankruptcy proceedings.

With a passion for the art of negotiation, Lemieux is constantly seeking to advance the rights of workers, unionized and non-unionized, in workplaces and society at large, in the courts and within governments at all levels.

Recognizing that the union’s strength comes from engaged members and activists at the local level, he is committed to mobilizing grassroots members to union activism, not only during collective bargaining, but at all times, notably in the union’s political and social action campaigns in Quebec. 

The USW District 5 headquarters are in Montreal.