# Relationship history for MSHA mine 4609469

Current hierarchy: **Damian  Caldwell; Michael  Church → Triple 7 Commodities Inc. → Jump Branch Mine No. 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Anil  Dang et al → Jump Branch Mine No. 1; 2012-02-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Wellston Coal, LLC → Jump Branch Mine No. 1; 2012-12-21 to 2017-11-27; source msha-controller-operator-history
- **controller_controls_operator:** Anil  Dang et al → Wellston Coal, LLC; 2012-12-21 to 2017-11-27; source msha-controller-operator-history
- **controller_controls_operator:** Ronald  Phillips et al → Wellston Coal, LLC; 2012-12-21 to 2017-11-27; source msha-controller-operator-history
- **controller_controls_mine:** Damian  Caldwell et al → Jump Branch Mine No. 1; 2017-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Triple 7 Commodities Inc. → Jump Branch Mine No. 1; 2017-11-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Damian  Caldwell et al → Triple 7 Commodities Inc.; 2017-11-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael  Church et al → Triple 7 Commodities Inc.; 2017-11-28 to current/open; source msha-controller-operator-history