# Relationship history for MSHA mine 1302398

Current hierarchy: **Bradley Duane Cummings → Peru Quarry Inc → Peru Quarry Inc**

- 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:** Peru Quarry Inc → Peru Quarry Inc; 2009-08-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Byrle D  Algoe → Peru Quarry Inc; 2009-08-09 to 2023-01-22; source msha-controller-operator-history
- **controller_controls_operator:** Byrle D  Algoe → Peru Quarry Inc; 2009-08-09 to 2023-01-22; source msha-controller-operator-history
- **controller_controls_mine:** Bradley Duane Cummings → Peru Quarry Inc; 2023-01-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bradley Duane Cummings → Peru Quarry Inc; 2023-01-23 to current/open; source msha-controller-operator-history