Tetratech provides engineering and consulting services to a variety organizations involved with managing and harvesting natural resources. Their mining division provides comprehensive analysis of mineral properties through the development of National Instrument 43-101 (NI 43-101) documents. Faced with tight deadlines and high workloads, Tetratech needed ongoing assistance from someone with strong writing skills who could edit complex scientific and geotechnical documents. Our extensive writing backgrounds made Essential Instructions the obvious choice to help them develop top quality NI 43-101 documents for their corporate clients. Our flexibility and ongoing relationship has enabled Tetratech to meet their deadlines, save money, and produce top quality deliverables.