# Relationship history for MSHA mine 1601117

Current hierarchy: **(Thomas) Jerald  Hanchey → Lafayette Asphalt Inc → LAFAYETTE ASPHALT INC**

- 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:** Lafayette Asphalt Inc → LAFAYETTE ASPHALT INC; 1986-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** (Thomas) Jerald  Hanchey → LAFAYETTE ASPHALT INC; 1986-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** (Thomas) Jerald  Hanchey → Lafayette Asphalt Inc; 1986-11-01 to current/open; source msha-controller-operator-history