# Relationship history for MSHA mine 3800542

Current hierarchy: **Lane Industries Inc → The Lane Construction Corporation → YORK COUNTY MINES**

- 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:** Lane Industries Inc → YORK COUNTY MINES; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Philipp Holzmann A G → YORK COUNTY MINES; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Rea Construction Company → YORK COUNTY MINES; 1978-03-09 to 2003-10-30; source msha-controller-operator-history
- **controller_controls_operator:** Philipp Holzmann A G → Rea Construction Company; 1978-03-09 to 2003-10-30; source msha-controller-operator-history
- **operator_operates_mine:** Rea Contracting LLC → YORK COUNTY MINES; 2003-10-31 to 2012-05-01; source msha-controller-operator-history
- **controller_controls_mine:** Lane Industries Inc → YORK COUNTY MINES; 2003-10-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lane Industries Inc → Rea Contracting LLC; 2003-10-31 to 2012-05-01; source msha-controller-operator-history
- **operator_operates_mine:** The Lane Construction Corporation → YORK COUNTY MINES; 2012-05-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lane Industries Inc → The Lane Construction Corporation; 2012-05-02 to current/open; source msha-controller-operator-history