# Relationship history for MSHA mine 0403373

Current hierarchy: **Granite Construction Inc → Granite Construction Co → Mendocino Aggregates**

- 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

- **controller_controls_mine:** Granite Construction Inc → Mendocino Aggregates; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Parnum Paving Inc → Mendocino Aggregates; 1950-01-01 to 1995-07-06; source msha-controller-operator-history
- **controller_controls_mine:** Robert J  King → Mendocino Aggregates; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert J  King → Parnum Paving Inc; 1950-01-01 to 1995-07-06; source msha-controller-operator-history
- **operator_operates_mine:** Parnum Paving,  Inc. → Mendocino Aggregates; 1995-07-07 to 2002-05-31; source msha-controller-operator-history
- **controller_controls_mine:** C Dean  Rasmussen → Mendocino Aggregates; 1995-07-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** C Dean  Rasmussen → Parnum Paving,  Inc.; 1995-07-07 to 2002-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Granite Construction Co → Mendocino Aggregates; 2002-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Granite Construction Inc → Granite Construction Co; 2002-06-01 to current/open; source msha-controller-operator-history