2163 4. LEGACY AND QUANTIFIABLE IMPACTS Two decades after the construction of Pillones, the results confirm that the model generated a structural transformation in the region, with measurable economic, energy, labor, and water-related impacts. 4.1 Economic and Productive Development The environment of water security and energy stability enabled more than USD 5 billion in subsequent mining investments. Copper production increased from 87 thousand metric tons of fine copper
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