# Relationship history for MSHA mine 2103153

Current hierarchy: **CRH PLC → Hallett Materials Inc → Crusher No CR-52**

- 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:** Kruse Paving Inc → Crusher No CR-52; 1998-04-01 to 2005-11-30; source msha-controller-operator-history
- **controller_controls_mine:** Lloyd C  Kruse → Crusher No CR-52; 1998-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lloyd C  Kruse → Kruse Paving Inc; 1998-04-01 to 2005-11-30; source msha-controller-operator-history
- **controller_controls_mine:** Rasmussen Group Inc → Crusher No CR-52; 1999-04-01 to 2001-08-10; source msha-controller-operator-history
- **controller_controls_mine:** CRH PLC → Crusher No CR-52; 2001-08-11 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Hallett Materials Inc → Crusher No CR-52; 2005-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CRH PLC → Hallett Materials Inc; 2005-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rasmussen Group Inc → Hallett Materials Inc; 2005-12-01 to 2001-08-10; source msha-controller-operator-history