# Relationship history for MSHA mine 3503116

Current hierarchy: **Tatman J W → Bora Bora Mining & Milling Inc → Bora Bora No 7**

- 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:** Bora Bora Mining & Milling Inc → Bora Bora No 7; 1983-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Tatman J W → Bora Bora No 7; 1983-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tatman J W → Bora Bora Mining & Milling Inc; 1983-08-01 to current/open; source msha-controller-operator-history