# Relationship history for MSHA mine 4104990

Current hierarchy: **Javier  Martinez; Jesse  Martinez → RCQ, LLC → RCQ**

- 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:** J&J Excavating & Materials Co. → RCQ; 2012-11-29 to 2020-01-21; source msha-controller-operator-history
- **controller_controls_mine:** Javier  Martinez → RCQ; 2012-11-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Javier  Martinez → J&J Excavating & Materials Co.; 2012-11-29 to 2020-01-21; source msha-controller-operator-history
- **operator_operates_mine:** RCQ, LLC → RCQ; 2020-01-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Javier  Martinez et al → RCQ; 2020-01-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Javier  Martinez et al → RCQ, LLC; 2020-01-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jesse  Martinez et al → RCQ, LLC; 2020-01-22 to current/open; source msha-controller-operator-history