/industries/otherindustries/industrial-energy/b/weblog/posts/reaching-operational-excellence-while-remaining-policy-compliant-leveraging-opportunities-to-improve-resource-efficiencyAuthor: Ana Gonzalez Hernandez, PhD The production of engineered materials, such as metals, cement, or plastics, requires a lot of energy. Before the industrial revolution, natural resources were of relatively high value compared to labour, and thisen-USTelligent Community 13