# Relationship history for MSHA mine 1001733

Current hierarchy: **Carlin David → Carlin Brothers Mining → S Africa #1**

- 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:** Carlin Brothers Mining → S Africa #1; 1986-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Carlin David → S Africa #1; 1986-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carlin David → Carlin Brothers Mining; 1986-04-01 to current/open; source msha-controller-operator-history