# Relationship history for MSHA mine 3401394

Current hierarchy: **Armstrong Gail → Caa Development Corp → Caa Development Corporation**

- 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:** 108th Corp → Caa Development Corporation; 1983-03-01 to 1985-08-25; source msha-controller-operator-history
- **controller_controls_mine:** Roberts Paul → Caa Development Corporation; 1983-03-01 to 1985-08-25; source msha-controller-operator-history
- **controller_controls_operator:** Roberts Paul → 108th Corp; 1983-03-01 to 1985-08-25; source msha-controller-operator-history
- **operator_operates_mine:** Caa Development Corp → Caa Development Corporation; 1985-08-26 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Armstrong Gail → Caa Development Corporation; 1985-08-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Armstrong Gail → Caa Development Corp; 1985-08-26 to current/open; source msha-controller-operator-history