# Relationship history for MSHA mine 0103264

Current hierarchy: **CRH PLC → APAC-Alabama,Inc. → Wedowee Quarry**

- 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:** U S Aggregate Inc → Wedowee Quarry; 1994-07-13 to 2002-05-28; source msha-controller-operator-history
- **controller_controls_mine:** CRH PLC → Wedowee Quarry; 2002-05-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ashland Inc → Wedowee Quarry; 2003-03-31 to 2006-08-27; source msha-controller-operator-history
- **operator_operates_mine:** Wedowee Quarry, Inc. → Wedowee Quarry; 2003-06-11 to 2005-08-17; source msha-controller-operator-history
- **controller_controls_mine:** Rodney E  Walker → Wedowee Quarry; 2003-06-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rodney E  Walker → Wedowee Quarry, Inc.; 2003-06-11 to 2005-08-17; source msha-controller-operator-history
- **operator_operates_mine:** APAC Southeast Inc  Alabama Division → Wedowee Quarry; 2005-08-18 to 2008-08-06; source msha-controller-operator-history
- **controller_controls_operator:** Ashland Inc → APAC Southeast Inc  Alabama Division; 2005-08-18 to 2006-08-27; source msha-controller-operator-history
- **controller_controls_mine:** CRH PLC → Wedowee Quarry; 2006-08-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CRH PLC → APAC Southeast Inc  Alabama Division; 2006-08-28 to 2008-08-06; source msha-controller-operator-history
- **operator_operates_mine:** APAC-Alabama,Inc. → Wedowee Quarry; 2008-08-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CRH PLC → APAC-Alabama,Inc.; 2008-08-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** U S Aggregate Inc → APAC-Alabama,Inc.; 2008-08-07 to 2002-05-28; source msha-controller-operator-history