# Relationship history for MSHA mine 2401604

Current hierarchy: **Addington Larry → Addwest Gold Inc → Chartam**

- 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:** Holmes Mining → Chartam; 1981-02-01 to 1984-09-19; source msha-controller-operator-history
- **controller_controls_mine:** Rick D  Holmes → Chartam; 1981-02-01 to 1984-09-19; source msha-controller-operator-history
- **controller_controls_operator:** Rick D  Holmes → Holmes Mining; 1981-02-01 to 1984-09-19; source msha-controller-operator-history
- **operator_operates_mine:** Western Energy Company → Chartam; 1984-09-20 to 1989-02-12; source msha-controller-operator-history
- **controller_controls_mine:** White Martin A → Chartam; 1984-09-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** White Martin A → Western Energy Company; 1984-09-20 to 1989-02-12; source msha-controller-operator-history
- **operator_operates_mine:** Addwest Gold Inc → Chartam; 1989-02-13 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Addington Larry → Chartam; 1989-02-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Addington Larry → Addwest Gold Inc; 1989-02-13 to current/open; source msha-controller-operator-history