# Relationship history for MSHA mine 4600004

Current hierarchy: **Aggregate Management, Inc → Fairfax Materials Inc → Bean's Quarry**

- 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:** Bean'S Lime & Stone Inc → Bean's Quarry; 1950-01-01 to 1985-05-19; source msha-controller-operator-history
- **controller_controls_mine:** Hartman Twila Z → Bean's Quarry; 1950-01-01 to 1985-05-19; source msha-controller-operator-history
- **controller_controls_operator:** Hartman Twila Z → Bean'S Lime & Stone Inc; 1950-01-01 to 1985-05-19; source msha-controller-operator-history
- **operator_operates_mine:** Bean'S Lime & Stone Inc → Bean's Quarry; 1985-05-20 to 1997-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Crites Rodger L → Bean's Quarry; 1985-05-20 to 1997-08-31; source msha-controller-operator-history
- **controller_controls_operator:** Crites Rodger L → Bean'S Lime & Stone Inc; 1985-05-20 to 1997-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Aggregate Management, Inc → Bean's Quarry; 1989-05-03 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Fairfax Sand & Crushed Stone Company Inc → Bean's Quarry; 1997-09-01 to 2002-11-30; source msha-controller-operator-history
- **controller_controls_mine:** Fairfax Holding Company Inc → Bean's Quarry; 1997-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Fairfax Holding Company Inc → Fairfax Sand & Crushed Stone Company Inc; 1997-09-01 to 2002-11-30; source msha-controller-operator-history
- **operator_operates_mine:** Fairfax Materials Inc → Bean's Quarry; 2002-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Aggregate Management, Inc → Fairfax Materials Inc; 2002-12-01 to current/open; source msha-controller-operator-history