# Relationship history for MSHA mine 5100192

Current hierarchy: **Knife River Corporation → Hawaiian Cement → Puunene 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:** M Funes Concrete Inc → Puunene Quarry; 1985-07-01 to 1987-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Marvin R  Funes → Puunene Quarry; 1985-07-01 to 1987-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Marvin R  Funes → M Funes Concrete Inc; 1985-07-01 to 1987-12-31; source msha-controller-operator-history
- **controller_controls_mine:** MDU Resources Group Inc → Puunene Quarry; 1985-10-01 to 2023-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Hawaiian Cement → Puunene Quarry; 1988-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** MDU Resources Group Inc → Hawaiian Cement; 1988-01-01 to 2023-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Knife River Corporation → Puunene Quarry; 2023-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Knife River Corporation → Hawaiian Cement; 2023-06-01 to current/open; source msha-controller-operator-history