# Relationship history for MSHA mine 0402999

Current hierarchy: **Reed Family Companies → 7/11 MATERIALS INC → CANEBRAKE PIT**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Ladd Ready Mixed Concrete Company → CANEBRAKE PIT; 1950-01-01 to 2013-03-19; source msha-controller-operator-history
- **controller_controls_mine:** Leroy  Ladd → CANEBRAKE PIT; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Leroy  Ladd → Ladd Ready Mixed Concrete Company; 1950-01-01 to 2013-03-19; source msha-controller-operator-history
- **controller_controls_mine:** Reed Family Companies → CANEBRAKE PIT; 1995-04-12 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Ladd Ready Mix LLC → CANEBRAKE PIT; 2013-03-20 to 2017-12-28; source msha-controller-operator-history
- **controller_controls_mine:** Donna  Ladd et al → CANEBRAKE PIT; 2013-03-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donna  Ladd et al → Ladd Ready Mix LLC; 2013-03-20 to 2017-12-28; source msha-controller-operator-history
- **controller_controls_operator:** Leroy  Ladd et al → Ladd Ready Mix LLC; 2013-03-20 to 2017-12-28; source msha-controller-operator-history
- **operator_operates_mine:** 7/11 Materials Inc → CANEBRAKE PIT; 2017-12-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Reed Family Companies → 7/11 Materials Inc; 2017-12-29 to current/open; source msha-controller-operator-history