# Relationship history for MSHA mine 3102354

Current hierarchy: **Charles S  Luck IV → Luck Stone Corporation → Flat Rock Plant**

- 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:** Charles S  Luck IV  et al → Flat Rock Plant; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Blue Water Industries Holdings LLC → Flat Rock Plant; 2017-12-29 to 2024-04-28; source msha-controller-operator-history
- **operator_operates_mine:** Blue Water Industries LLC → Flat Rock Plant; 2023-02-01 to 2024-05-09; source msha-controller-operator-history
- **controller_controls_operator:** Blue Water Industries Holdings LLC → Blue Water Industries LLC; 2023-02-01 to 2024-04-28; source msha-controller-operator-history
- **controller_controls_mine:** Martin Marietta Materials Inc → Flat Rock Plant; 2024-04-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Martin Marietta Materials Inc → Blue Water Industries LLC; 2024-04-29 to 2024-05-09; source msha-controller-operator-history
- **operator_operates_mine:** Blue Water Industries II LLC → Flat Rock Plant; 2024-05-10 to 2025-07-06; source msha-controller-operator-history
- **controller_controls_mine:** Blue Water Industries Holdings 2 LLC → Flat Rock Plant; 2024-05-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Blue Water Industries Holdings 2 LLC → Blue Water Industries II LLC; 2024-05-10 to 2025-07-06; source msha-controller-operator-history
- **operator_operates_mine:** Luck Stone Corporation → Flat Rock Plant; 2025-07-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles S  Luck IV  et al → Luck Stone Corporation; 2025-07-07 to current/open; source msha-controller-operator-history