Goldman Sachs previews 2026 Copper Week: tight supply-demand, project execution, and regulatory changes are the core debates

Overview

This is a Goldman Sachs event preview and investment summary report on the global copper industry, centered on its annual virtual Copper Week to be held from June 29 to July 1, 2026. The report focuses on the key issues that management teams of major copper mining companies may discuss, including growth projects, capex inflation, project timelines, financing conditions, the regulatory environment, cost trends, and copper supply-demand and price expectations.

Core views

The report argues that the main investment debate in the copper industry is expanding from pure copper price leverage to project execution, cost control, regulatory visibility, and asset quality. In the short term, investors are concerned about the effects of energy and chemical costs, macro uncertainty, interest rate expectations, US inventories, and tariff discussions on demand and valuations; in the medium to long term, declining ore grades, replacement capex for supply, political and regulatory changes in Latin America, and whether large projects can be delivered on time and on budget are the key determinants of copper equity performance. At the company level, Goldman Sachs prefers companies with clear growth projects, asset quality, copper price leverage, or valuation discounts, while remaining neutral on companies with execution risk, unapproved projects, or valuations that already reflect high copper prices.

Analysis framework

The report uses an event-driven industry framework, treating the upcoming Copper Week as a management information update window, and combines company investment summaries, ratings, target prices, implied copper prices, free cash flow yields, NAV, EV/EBITDA, DCF, project progress, and key risks for cross-sectional comparison.

Methodology notes

• Valuation methodsDCF and EV/EBITDA blended valuation

  Set target prices for copper mining companies through discounted cash flow and forward EV/EBITDA multiples.

  Target prices for multiple companies in the report are based on DCF, 1-year forward EV/EBITDA, NAV, or blended multiple methodologies, such as for Capstone, Ero Copper, Hudbay, Southern Copper, and Vale.

• Relative valuationImplied copper price analysis

  Back out the copper price implied by the stock price and compare it with spot prices or Goldman Sachs expectations.

  The report uses implied copper prices to assess risk-reward; for example, Capstone's share price implies a copper price above spot, while First Quantum, Hudbay, and Southern Copper imply copper prices below spot in some scenarios.

• Factor frameworkGS Factor Profile

  Goldman Sachs factor profiling compares stock characteristics across growth, financial returns, valuation multiples, and composite indicators.

  The report discloses that this framework uses standardized rankings of metrics including sales, EBITDA, and EPS growth; ROE, ROCE, and CROCI; and P/E, P/B, EV/EBITDA, and EV/FCF.

• M&A frameworkM&A Rank

  Goldman Sachs uses a 1-to-3 rating scale to assess the probability that a company becomes an acquisition target.

  A score of 1 indicates a higher acquisition probability, 2 indicates a medium probability, and 3 indicates a lower probability; for some companies, the M&A component may be included in the target price.

Asset mapping & comparison

Structured mapping from thesis to named assets (strengths, weaknesses, peers, risks).

• Antofagasta

  Buy rating; beneficiary of copper-gold exposure and scarcity premium

  Strengths

  It has scaled pure-play copper and gold equity exposure, with Centinela and Pelambres as the core of current production and growth this decade, while the Centinela C2 and C2E expansions may deliver low-cost growth.

  Weaknesses

  Project execution and capex control remain key.

  Comparison

  The report considers it one of the few companies currently delivering copper growth.

  Risks

  Commodity prices, US tariff events, Centinela execution delays, rising costs, and value-destructive M&A.

• Capstone Copper

  Neutral rating; high operating leverage to copper prices

  Strengths

  Its high-cost assets give it strong upside in a rising copper price scenario, and approval of the Santo Domingo project could improve its cost structure and medium-term FCF.

  Weaknesses

  Asset performance is volatile, near-term cash flow and earnings momentum are uncertain, and the stock implies a high copper price.

  Comparison

  Compared with some peers, near-term FCF yield is not attractive enough.

  Risks

  Slower Mantoverde ramp-up, capex overruns, macro and tariff uncertainty, and regulatory risk from concentration in Chilean assets.

• Ero Copper

  Neutral rating; gold exposure provides some hedge

  Strengths

  Gold concentrate sales in 2026 to 2027 may lift FCF and provide a natural hedge to copper prices.

  Weaknesses

  Limited upside to copper prices, ongoing operational uncertainty, and valuation is not sufficiently favorable.

  Comparison

  Risk-reward is less attractive.

  Risks

  Slower-than-expected resolution of operating issues at Tucumã and Caraiba, and copper or gold prices below expectations.

• First Quantum Minerals

  Buy rating; Cobre Panama is the key catalyst

  Strengths

  It has a strong history of operational execution and project delivery, while asset sales, gold streaming agreements, and liability management improve the balance sheet; if Cobre Panama restarts, attractiveness would rise significantly.

  Weaknesses

  A restart of Cobre Panama is not in GS's base case, and current EBITDA exposure is highly concentrated in Zambia.

  Comparison

  The report states that including a Cobre Panama scenario, the share price implies a copper price of about $11,300/t, below spot.

  Risks

  Production or energy issues in Zambia, an overly prolonged resolution for Cobre Panama, falling copper prices, and restart economics below expectations.

• Freeport-McMoRan

  Beneficiary of structural copper deficit and gold exposure

  Strengths

  It has globally diversified assets, the low-cost Grasberg mine, and gold exposure; North American leach projects are expected to raise output and lower unit costs.

  Weaknesses

  Investors remain concerned about the Grasberg ramp-up trajectory.

  Comparison

  The report believes current valuation is below historical levels, and the risk-reward offers an attractive entry point.

  Risks

  Commodity prices below expectations, rising energy costs, labor strikes, mine disruptions, higher capital costs, and cost reductions falling short of expectations.

• HudBay Minerals

  Buy rating; gold exposure and growth optionality

  Strengths

  Gold contributes a relatively high share of FCF from 2026 to 2028, Copper Mountain improvements support cash flow, and the jurisdictions of Canada and Peru are relatively stable.

  Weaknesses

  Copper World and other unapproved projects are not included in the base DCF, and project execution uncertainty remains.

  Comparison

  The report estimates Copper World NAV at $2.3B, about 18% of market capitalization.

  Risks

  Copper and gold prices below forecasts, declining Peru production, failure to optimize Copper Mountain, continued failure in Manitoba gold output, delays or overruns at Copper World, social unrest in Peru, and wildfires in Manitoba.

• Lundin Mining

  Buy rating; high share of revenue from copper

  Strengths

  Relative valuation is about 1x P/NAV, copper revenue accounts for about 85% of total revenue, and operational performance and cost discipline are strong.

  Weaknesses

  Growth catalysts depend on progress in projects such as Vicuna.

  Comparison

  Valuation is more attractive relative to peers.

  Risks

  Commodity prices, US tariff events, operational delivery, Argentina geopolitics, weather or technical issues at the Vicuna project, and value-destructive M&A.

• Southern Copper

  Neutral rating; upgraded from Sell

  Strengths

  One of the largest publicly traded pure copper producers, with a strong operating record, long mine life, and a scarcity premium supported by low costs and US liquidity.

  Weaknesses

  Valuation carries a premium, and some growth projects have not yet been approved by the board.

  Comparison

  The report says its implied copper price is about $11,600/t, below spot, and that it is defensive in a copper price downturn.

  Risks

  Falling copper and by-product prices, costs above expectations, faster-than-expected mine depletion, overruns at projects such as Tia Maria, and political and regulatory risks in Mexico and Peru.

• Vale

  Buy rating; balancing iron ore and copper growth

  Strengths

  Strategically balances its iron ore portfolio while developing its copper business, valuation is relatively attractive, capital allocation is clearer, M&A risk is limited, and dividend carry is prominent.

  Weaknesses

  It remains primarily exposed to the iron ore cycle and the Brazil exchange rate.

  Comparison

  The report states that Vale is trading at an FCF yield of about 8% at spot prices, above BHP/Rio's 4% to 6%.

  Risks

  China macro slowdown causing iron ore price declines, BRL strengthening against USD, slower-than-expected improvement in copper and nickel supply-demand, Samarco legal matters, and underperformance in iron ore and base metals operations.

Key data

• Copper Week timing2026-06-29 to 2026-07-01Goldman Sachs annual virtual Copper Week.
• Participating companiesAntofagasta, Capstone, Ero Copper, First Quantum, Freeport, Hudbay, Lundin Mining, Southern Copper, Teck, Vale Base MetalsTeck is marked as not covered.
• Antofagasta rating and target priceBuy; 12-month target price £46The target price is based on a 25/75 blend of 1.3x NAV and EV/EBITDA, using an 8.5x target multiple.
• Capstone Copper rating and target priceNeutral; 12-month target price C$13/shThe company has high operating leverage to copper prices, but asset performance is volatile, near-term FCF attractiveness is limited, and execution risk exists.
• Ero Copper rating and target priceNeutral; 12-month target price $31.0Risk-reward is affected by limited copper upside, operational uncertainty, and valuation.
• First Quantum rating and target priceBuy; 12-month target price C$44.0/shA restart of Cobre Panama is not in GS's base case, but is viewed as a major catalyst.
• Freeport-McMoRan target price12-month target price $75The target price is based on 85% through-cycle EV/EBITDA valuation and a 15% M&A component.
• HudBay Minerals rating and target priceBuy; 12-month target price C$39/shSupported by gold exposure, Copper Mountain improvements, and Copper World optionality.
• Lundin Mining rating and target priceBuy; C$47.8 / SEK311The target price is based on 1x NAV, EV/EBITDA, and a 10x NTM EBITDA target multiple.
• Southern Copper rating and target priceNeutral; 12-month target price US$176.24Recently upgraded from Sell to Neutral, supported by a copper scarcity premium.
• Vale rating and target priceBuy; 12-month target price $18The target price is based on the DCF method, with WACC of 9.0% and Beta of 1.10.

Impact & implications

For investors, selecting copper mining equities is not just about upside leverage to rising copper prices; it also requires assessing whether projects can be delivered on schedule, whether capex is under control, whether cost inflation has peaked, whether the regulatory environment is predictable, and whether share prices already fully reflect optimistic copper price scenarios. The report favors companies with growth projects, low-cost assets, valuation discounts, or attached gold exposure in the context of tight supply-demand and a copper scarcity premium, while warning that highly leveraged, high-cost, or project-concentrated companies may see greater volatility under macro and execution shocks.

Risks

• Copper, gold, silver, molybdenum, or iron ore prices below expectations.
• US tariff-related events and macro uncertainty affecting copper demand, interest rate expectations, and valuations.
• Energy and chemical cost inflation above expectations, compressing margins.
• Delays in growth projects, capex overruns, slower-than-expected ramp-ups, or technical and safety issues.
• Political and regulatory changes in Latin America, including uncertainty in Peru, Chile, Brazil, Argentina, Mexico, and other regions.
• Declining ore grades, mine depletion, and replacement capex pressure.
• Labor strikes, social unrest, wildfires, weather, and mine operating disruptions.
• Value-destructive M&A or capital allocation mistakes.

What to watch

• Latest commentary from company management during Copper Week on project progress, capex, and cost inflation.
• Whether energy and chemical costs have already peaked, and whether there is risk of upward revisions to full-year cost guidance.
• The impact of US inventories, tariff discussions, interest rate expectations, and global GDP activity on copper demand growth.
• Political and regulatory changes in major copper-producing countries such as Peru, Chile, Brazil, Argentina, and Mexico.
• The path for audit, inventory copper sales, mill restart, and potential full restart of Cobre Panama.
• Timelines and budget execution for key projects such as Centinela C2/C2E, Santo Domingo, Furnas, Grasberg, Copper World, Vicuna, and Tia Maria.
• Changes in companies' implied copper prices in share prices relative to spot and Goldman Sachs expectations.