The Saguenay–Lac-Saint-Jean region of Quebec is celebrating 100 years of aluminium production following the anniversary of the Arvida plant [1].
This centennial marks a pivotal shift in the regional economy, as the industry provided a critical alternative to the declining pulp-and-paper sector. The establishment of the Société de la Vallée de l'Aluminium not only diversified the local financial base, but also redefined the physical and social landscape of the area [2].
Production at the Arvida plant officially began on July 27, 1926 [1]. The arrival of the industry created employment for thousands of families [2]. Over the last century, the region has evolved into a global hub for the metal, transitioning from a nascent industrial experiment into a cornerstone of Quebec's manufacturing identity.
Radio-Canada Info said that the first pots at the Arvida plant began producing aluminium during that initial launch in 1926 [1]. This industrialization allowed the region to pivot away from its reliance on forest products, a move that ensured long-term economic stability for the city of Saguenay and surrounding communities.
Recent initiatives continue to build on this legacy. The "Horizon Aluminium 2026" event aims to attract global industry attention to the Saguenay region [3]. The Les Affaires editorial team said the event is designed to draw the worldwide aluminium industry to the region [3].
The scale of the impact is measured not just in tonnage, but in the generational wealth and stability provided to the local workforce [2]. As the region looks toward the next century, the focus remains on maintaining its competitive edge in a shifting global market while honoring the industrial roots established 100 years ago.
“The Arvida plant began operations in 1926, reshaping the Quebec region's economy.”
The centennial of aluminium production in Saguenay–Lac-Saint-Jean illustrates a successful regional economic pivot. By replacing a fading pulp-and-paper industry with high-output metallurgy, the region avoided industrial decay and established a specialized labor market. The current push via Horizon Aluminium 2026 suggests a strategy to modernize this legacy and maintain relevance amid global shifts in green energy and metal production.



