# Relationship history for MSHA mine 0801433

Current hierarchy: **Quikrete Holdings Inc. → Georgia Stone Products, LLC → Seven Diamonds Mine**

- 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:** Boxley Materials Co → Seven Diamonds Mine; 1950-01-01 to 2016-03-20; source msha-controller-operator-history
- **controller_controls_mine:** Summit Materials LLC → Seven Diamonds Mine; 2016-03-21 to 2025-02-09; source msha-controller-operator-history
- **operator_operates_mine:** Seven Diamonds LLC → Seven Diamonds Mine; 2021-07-22 to 2025-01-06; source msha-controller-operator-history
- **controller_controls_mine:** Lew J Friedland et al → Seven Diamonds Mine; 2021-07-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lew J Friedland et al → Seven Diamonds LLC; 2021-07-22 to 2025-01-06; source msha-controller-operator-history
- **controller_controls_operator:** Kevin J Connors et al → Seven Diamonds LLC; 2021-07-22 to 2025-01-06; source msha-controller-operator-history
- **operator_operates_mine:** Georgia Stone Products, LLC → Seven Diamonds Mine; 2025-01-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Boxley Materials Co → Georgia Stone Products, LLC; 2025-01-07 to 2016-03-20; source msha-controller-operator-history
- **controller_controls_operator:** Summit Materials LLC → Georgia Stone Products, LLC; 2025-01-07 to 2025-02-09; source msha-controller-operator-history
- **controller_controls_mine:** Quikrete Holdings Inc. → Seven Diamonds Mine; 2025-02-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Quikrete Holdings Inc. → Georgia Stone Products, LLC; 2025-02-10 to current/open; source msha-controller-operator-history