# Relationship history for MSHA mine 0405102

Current hierarchy: **Lhoist Group → Chemical Lime Company Of Arizona → STOCKTON MILL**

- 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:** Chemical Lime Company → STOCKTON MILL; 1986-12-04 to 1998-12-30; source msha-controller-operator-history
- **operator_operates_mine:** Chemical Lime Company Of Arizona → STOCKTON MILL; 1990-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Chemical Lime Company → Chemical Lime Company Of Arizona; 1990-07-01 to 1998-12-30; source msha-controller-operator-history
- **controller_controls_mine:** Lhoist Group → STOCKTON MILL; 1998-12-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lhoist Group → Chemical Lime Company Of Arizona; 1998-12-31 to current/open; source msha-controller-operator-history