This report presents the case of Metalexacto, Unique and La Pisqueña in Peru on the efficient use of materials, energy, water, waste and emissions by Resource Efficient and Cleaner Production (RECP). RECP covers the application of preventive management strategies that increase the productive use of natural resources, minimize generation of waste and emissions and foster safe and responsible production. Benefits are eminent in many enterprises, regardless of sector, location or size, as demonstrated by these experiences.