# Relationship history for MSHA mine 0405534

Current hierarchy: **Christopher B  Smith → Pacific States Transportation → Pacific States Plant #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

- **operator_operates_mine:** Pacific States Transportation → Pacific States Plant #1; 2002-09-11 to 2009-01-01; source msha-controller-operator-history
- **controller_controls_mine:** Lynn  Matthews → Pacific States Plant #1; 2002-09-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lynn  Matthews → Pacific States Transportation; 2002-09-11 to 2009-01-01; source msha-controller-operator-history
- **operator_operates_mine:** Pacific States Transportation → Pacific States Plant #1; 2009-01-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Christopher B  Smith → Pacific States Plant #1; 2009-01-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Christopher B  Smith → Pacific States Transportation; 2009-01-02 to current/open; source msha-controller-operator-history