# Relationship history for MSHA mine 5100300

Current hierarchy: **Sanford  Iwata → Sanford's Service Center, Inc. → LP**

- 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:** Sanford  Iwata → LP; 1995-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Sanford's Service Center, Inc. → LP; 2008-10-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sanford  Iwata → Sanford's Service Center, Inc.; 2008-10-31 to current/open; source msha-controller-operator-history