# Relationship history for MSHA mine 2200752

Current hierarchy: **Quikrete Holdings Inc. → The Quikrete Companies → Quikrete Aggregates of Picayune**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **controller_controls_mine:** Richard  Stockstill  et al → Quikrete Aggregates of Picayune; 1990-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Quikrete Holdings Inc. → Quikrete Aggregates of Picayune; 1998-09-11 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Custom Aggregates & Grinding Inc → Quikrete Aggregates of Picayune; 2003-10-22 to 2008-07-27; source msha-controller-operator-history
- **controller_controls_operator:** Richard  Stockstill  et al → Custom Aggregates & Grinding Inc; 2003-10-22 to 2008-07-27; source msha-controller-operator-history
- **controller_controls_operator:** Huey  Stockstill  et al → Custom Aggregates & Grinding Inc; 2003-10-22 to 2008-07-27; source msha-controller-operator-history
- **operator_operates_mine:** The Quikrete Companies → Quikrete Aggregates of Picayune; 2008-07-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Quikrete Holdings Inc. → The Quikrete Companies; 2008-07-28 to current/open; source msha-controller-operator-history