Top TSX Stocks to Buy: 2025 Copper Leaders

Highlights

• Copper stocks recorded strong gains in 2025 amid commodity price surges and supportive regulatory developments.
• Companies including St. Augustine Gold and Copper, Northern Dynasty Minerals, and Imperial Metals led performance on the TSX.
• Exploration progress, feasibility updates, and legal rulings shaped the outlook for several key mining entities.

Top tsx stocks to buy featured several copper-focused companies in 2025 as price volatility and geopolitical shifts pushed the metal to record levels. The sector’s resurgence has been evident across the S&P/TSX Global Mining Index and related benchmarks, with companies benefiting from favorable pricing, government policies, and asset development milestones.

St. Augustine Gold and Copper (TSX:SAU)

St. Augustine Gold and Copper (TSX:SAU) advanced significantly due to progress at the King-king copper-gold project in the Philippines. This asset comprises 184 mining claims and is subject to an updated development strategy following an agreement with the National Development Corporation (Nadecor).

The transaction grants St. Augustine a 100 percent interest in Kingking Milling, which controls development rights. A subsequent debt conversion deal increased Queensberry Mining’s stake in the company to 52 percent. These transactions provided financial and operational momentum as the company seeks to update its prior economic assessments. Share prices responded positively, reaching a peak in early July.

Northern Dynasty Minerals (TSX:NDM)

Northern Dynasty Minerals (TSX:NDM) focused on regulatory developments at the Pebble project in Alaska. Containing extensive copper and precious metal resources, the site has faced permitting delays due to a 2020 veto by the U.S. Environmental Protection Agency.

In 2025, the company initiated legal steps to vacate the veto, supported by a U.S. executive order aimed at fast-tracking domestic mineral projects. A decision regarding settlement discussions with the EPA is pending. These regulatory actions influenced the company’s share performance throughout the year.

Imperial Metals (TSX:III)

Imperial Metals (TSX:III) saw gains through increased production and exploration success at its British Columbia mines. The company holds a 30 percent stake in the Red Chris copper-gold mine, with the remainder owned by Newmont. It also fully owns Mount Polley and Huckleberry.

Legal proceedings concerning the Mount Polley tailings facility were addressed by the BC Supreme Court, which allowed construction to proceed pending a final decision. Operational data showed growth in production volumes, supported by higher throughput and ore grades. Positive assay results from exploration at Mount Polley further contributed to market activity.

Generation Mining (TSX:GENM)

Generation Mining (TSX:GENM) focused on advancing the Marathon copper-palladium project in Northwestern Ontario. The company secured key environmental and construction permits during the first half of the year, with plans to initiate site development.

The feasibility study outlined a 13-year mine life with consistent annual production expectations. Generation also completed a financing round in June and received recognition from Ontario’s government, which listed Marathon among projects eligible for federal critical mineral funding. These developments boosted the company’s performance during Q2.

Meridian Mining UK Societas (TSX:MNO)

Meridian Mining UK Societas (TSX:MNO) remained active in copper exploration and project advancement. While fewer operational updates were disclosed, investor interest appeared driven by broader copper market momentum and regional exploration trends.

The company’s performance reflected sector-wide sentiment as copper prices surged in response to policy actions and global supply concerns. Its position within the TSX-listed copper segment contributed to year-to-date share appreciation.