# Relationship history for MSHA mine 0201502

Current hierarchy: **Steve  Kranich → Mobile Mix Inc. → Mobile Mix Inc.**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Sand Specialties → Mobile Mix Inc.; 1950-01-01 to 1979-06-19; source msha-controller-operator-history
- **controller_controls_mine:** Sand Specialties → Mobile Mix Inc.; 1950-01-01 to 1979-06-19; source msha-controller-operator-history
- **controller_controls_operator:** Sand Specialties → Sand Specialties; 1950-01-01 to 1979-06-19; source msha-controller-operator-history
- **controller_controls_mine:** Margaret F  Adams → Mobile Mix Inc.; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Aggregate Products Company Inc → Mobile Mix Inc.; 1979-06-20 to 2003-12-03; source msha-controller-operator-history
- **controller_controls_mine:** Ben F  Hazelton  et al → Mobile Mix Inc.; 1979-06-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ben F  Hazelton  et al → Aggregate Products Company Inc; 1979-06-20 to 2003-12-03; source msha-controller-operator-history
- **operator_operates_mine:** Red Mountain Mining → Mobile Mix Inc.; 2003-12-04 to 2006-12-05; source msha-controller-operator-history
- **controller_controls_operator:** Margaret F  Adams → Red Mountain Mining; 2003-12-04 to 2006-12-05; source msha-controller-operator-history
- **operator_operates_mine:** Mobile Mix Inc. → Mobile Mix Inc.; 2006-12-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Steve  Kranich → Mobile Mix Inc.; 2006-12-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steve  Kranich → Mobile Mix Inc.; 2006-12-06 to current/open; source msha-controller-operator-history