# Relationship history for MSHA mine 3003052

Current hierarchy: **Pamela J  Harris → Harris Company Inc → KEITH L. HARRIS CO., 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Harris Company Inc → KEITH L. HARRIS CO., INC.; 1992-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Pamela J  Harris → KEITH L. HARRIS CO., INC.; 1992-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pamela J  Harris → Harris Company Inc; 1992-07-01 to current/open; source msha-controller-operator-history