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The metal industry, fundamental to global infrastructure and technological advancement, stands at a critical juncture. Demand for metals continues to rise, yet traditional linear production models, characterized by “take-make-dispose,” are unsustainable. Sustainable metallurgy has emerged as a crucial discipline, demanding a fundamental shift towards resource efficiency and circular economy principles. This necessitates a holistic re-evaluation of the entire metal lifecycle, from responsible sourcing and primary production to end-of-life management. The substantial waste generated by conventional metallurgical processes, coupled with the underutilization of valuable by-products from metal manufacturing, presents both a challenge and an opportunity. Advanced research in sustainable metallurgy focuses on minimizing this waste through process optimization, innovative by-product valorization, and developing closed-loop systems. Furthermore, exploring re-mining previously exploited sites and leveraging advancements in extraction technologies to recover residual metals from low-grade ores and mine tailings offers a promising pathway. Crucially, advancements in metal recycling technologies, including improved separation techniques and developing high-value applications for recycled materials, are essential for closing the loop and reducing our reliance on primary resources. This transition to a genuinely sustainable metallurgical paradigm requires collaborative efforts across industry, academia, and policymakers to ensure the long-term availability of critical metals while drastically minimizing the industry’s environmental impact.