# Relationship history for MSHA mine 4702980

Current hierarchy: **Kody C  DuChateau → KCG Excavating Inc → Crushing Plant #01**

- 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

- **controller_controls_mine:** Craig  DuChateau et al → Crushing Plant #01; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Dmk Inc → Crushing Plant #01; 1993-05-01 to 2013-08-14; source msha-controller-operator-history
- **controller_controls_operator:** Craig  DuChateau et al → Dmk Inc; 1993-05-01 to 2013-08-14; source msha-controller-operator-history
- **operator_operates_mine:** KCG Excavating Inc → Crushing Plant #01; 2013-08-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kody C  DuChateau → Crushing Plant #01; 2013-08-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kody C  DuChateau → KCG Excavating Inc; 2013-08-15 to current/open; source msha-controller-operator-history