source:[1] Goldman Sachs increases December 2025 copper estimate (https://energynews.oedigital.com/mining/2025/ ...)[2] Goldman Sachs Ups Copper Price Forecast on Strong ... (https://www.thedriller.com/articles/93419-gol ...)[3] Goldman Sachs is still bullish on copper prices and ... (https://news.metal.com/newscontent/101549814/ ...)