# Relationship history for MSHA mine 4609400

Current hierarchy: **CMDC LLC; RWMV LLC → WWMV LLC → Opus Mine**

- 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:** Douglas M  Epling et al → Opus Mine; 2000-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Hanover Resources, LLC → Opus Mine; 2011-01-24 to 2017-04-26; source msha-controller-operator-history
- **controller_controls_operator:** Douglas M  Epling et al → Hanover Resources, LLC; 2011-01-24 to 2017-04-26; source msha-controller-operator-history
- **operator_operates_mine:** WWMV LLC → Opus Mine; 2017-04-27 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** CMDC LLC et al → Opus Mine; 2017-04-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CMDC LLC et al → WWMV LLC; 2017-04-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** RWMV LLC et al → WWMV LLC; 2017-04-27 to current/open; source msha-controller-operator-history