Sue Estes

Sue Estes is the Human Resources Manager at Mining Companies, bringing over 20 years of experience in HR leadership. She oversees payroll, benefits, compliance, workers’ compensation, and employment relations, ensuring seamless operations and adherence to regulations. Before joining Mining Companies, Sue led HR functions for top construction and manufacturing firms, guiding organizations from startup to […]
John Smithen

John Smithen serves as a Senior Project Manager at Mining Companies participating in all phases of project analysis, development, and implementation. John has more than 40 years of experience in the mining and construction industry, from beginning as a laborer on a crew to owning his own company. Since joining the Mining Companies team, he […]
Miles Arnold

Miles Arnold is the Principal of Mining Companies, bringing over 20 years of leadership and operational expertise to the organization. His extensive experience spans locating, purchasing, developing, and operating mines for construction materials and industrial sands, overseeing more than 40 mining and storage operations across 10 states and nine mineral types. Throughout his career, Miles […]