# Relationship history for MSHA mine 3600268

Current hierarchy: **Heidelberg Materials AG → Heidelberg Materials Northeast LLC → Wayne 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:** Wayne Crushed Stone Inc → Wayne Quarry; 1950-01-01 to 1989-01-25; source msha-controller-operator-history
- **controller_controls_mine:** Rogers Amos Ii → Wayne Quarry; 1950-01-01 to 1989-01-25; source msha-controller-operator-history
- **controller_controls_operator:** Rogers Amos Ii → Wayne Crushed Stone Inc; 1950-01-01 to 1989-01-25; source msha-controller-operator-history
- **controller_controls_mine:** Hanson PLC → Wayne Quarry; 1988-11-14 to 2007-08-22; source msha-controller-operator-history
- **controller_controls_mine:** Hanson PLC → Wayne Quarry; 1988-11-14 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Hri Inc → Wayne Quarry; 1989-01-26 to 2004-02-05; source msha-controller-operator-history
- **controller_controls_operator:** Hanson PLC → Hri Inc; 1989-01-26 to 2004-02-05; source msha-controller-operator-history
- **operator_operates_mine:** Heidelberg Materials Northeast LLC → Wayne Quarry; 2004-02-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hanson PLC → Heidelberg Materials Northeast LLC; 2004-02-06 to 2007-08-22; source msha-controller-operator-history
- **controller_controls_mine:** Heidelberg Materials AG → Wayne Quarry; 2007-08-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Heidelberg Materials AG → Heidelberg Materials Northeast LLC; 2007-08-23 to current/open; source msha-controller-operator-history