# Relationship history for MSHA mine 2302327

Current hierarchy: **Frank J  Beelman III → Trap Rock and Granite Quarries → Trap Rock and Granite Quarries, LLC**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Lafarge S A → Trap Rock and Granite Quarries, LLC; 2001-07-12 to 2015-07-09; source msha-controller-operator-history
- **operator_operates_mine:** Lafarge North America Inc → Trap Rock and Granite Quarries, LLC; 2006-02-09 to 2007-10-29; source msha-controller-operator-history
- **controller_controls_operator:** Lafarge S A → Lafarge North America Inc; 2006-02-09 to 2007-10-29; source msha-controller-operator-history
- **operator_operates_mine:** Graniteville Quarry LLC → Trap Rock and Granite Quarries, LLC; 2007-10-30 to 2011-08-18; source msha-controller-operator-history
- **controller_controls_mine:** Benjamin Charles  Studdard  et al → Trap Rock and Granite Quarries, LLC; 2007-10-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Benjamin Charles  Studdard  et al → Graniteville Quarry LLC; 2007-10-30 to 2011-08-18; source msha-controller-operator-history
- **controller_controls_operator:** Glennon R  Weibrecht Jr  et al → Graniteville Quarry LLC; 2007-10-30 to 2011-08-18; source msha-controller-operator-history
- **operator_operates_mine:** Trap Rock and Granite Quarries → Trap Rock and Granite Quarries, LLC; 2011-08-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Frank J  Beelman III → Trap Rock and Granite Quarries, LLC; 2011-08-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Frank J  Beelman III → Trap Rock and Granite Quarries; 2011-08-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Holcim Ltd → Trap Rock and Granite Quarries, LLC; 2015-07-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Holcim Ltd → Lafarge North America Inc; 2015-07-10 to 2007-10-29; source msha-controller-operator-history