# Relationship history for MSHA mine 0203213

Current hierarchy: **Holcim Ltd → Lafarge North America, Inc → Jack Rabbit**

- 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:** Lafarge S A → Jack Rabbit; 2001-07-12 to 2015-07-09; source msha-controller-operator-history
- **operator_operates_mine:** Lafarge North America, Inc → Jack Rabbit; 2008-05-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lafarge S A → Lafarge North America, Inc; 2008-05-14 to 2015-07-09; source msha-controller-operator-history
- **controller_controls_mine:** Holcim Ltd → Jack Rabbit; 2015-07-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Holcim Ltd → Lafarge North America, Inc; 2015-07-10 to current/open; source msha-controller-operator-history