# Relationship history for MSHA mine 0404549

Current hierarchy: **Eric  Werner; Pat  Broyles → Chandler Aggregates Inc → Chandler Aggregates Coldwater Pl**

- 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:** Jim D  Grace et al → Chandler Aggregates Coldwater Pl; 1950-01-01 to 2005-10-03; source msha-controller-operator-history
- **operator_operates_mine:** R J Noble Company → Chandler Aggregates Coldwater Pl; 1981-12-01 to 1996-02-07; source msha-controller-operator-history
- **controller_controls_operator:** Jim D  Grace et al → R J Noble Company; 1981-12-01 to 1996-02-07; source msha-controller-operator-history
- **controller_controls_operator:** Paul H  Cleary Jr et al → R J Noble Company; 1981-12-01 to 1996-02-07; source msha-controller-operator-history
- **controller_controls_mine:** Jim  Broyles et al → Chandler Aggregates Coldwater Pl; 1995-01-07 to 2017-03-09; source msha-controller-operator-history
- **operator_operates_mine:** Chandler Aggregates Inc → Chandler Aggregates Coldwater Pl; 1996-02-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jim  Broyles et al → Chandler Aggregates Inc; 1996-02-08 to 2017-03-09; source msha-controller-operator-history
- **controller_controls_mine:** Michael  Carver → Chandler Aggregates Coldwater Pl; 2005-10-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael  Carver → R J Noble Company; 2005-10-04 to 1996-02-07; source msha-controller-operator-history
- **controller_controls_mine:** Eric  Werner et al → Chandler Aggregates Coldwater Pl; 2017-03-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eric  Werner et al → Chandler Aggregates Inc; 2017-03-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pat  Broyles et al → Chandler Aggregates Inc; 2017-03-10 to current/open; source msha-controller-operator-history