# Relationship history for MSHA mine 2003259

Current hierarchy: **Kyle R  Thom → Mikinaak Sand and Gravel LLC → Mikinaak Sand and Gravel**

- 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

- **operator_operates_mine:** Michigan Aggregate Products LLC → Mikinaak Sand and Gravel; 2002-10-08 to 2019-06-04; source msha-controller-operator-history
- **controller_controls_mine:** Gregg  Loudon → Mikinaak Sand and Gravel; 2002-10-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gregg  Loudon → Michigan Aggregate Products LLC; 2002-10-08 to 2019-06-04; source msha-controller-operator-history
- **operator_operates_mine:** Mikinaak Sand and Gravel LLC → Mikinaak Sand and Gravel; 2019-06-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kathleen E Thom → Mikinaak Sand and Gravel; 2019-06-05 to 2024-03-13; source msha-controller-operator-history
- **controller_controls_operator:** Kathleen E Thom → Mikinaak Sand and Gravel LLC; 2019-06-05 to 2024-03-13; source msha-controller-operator-history
- **controller_controls_mine:** Kyle R  Thom → Mikinaak Sand and Gravel; 2024-03-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kyle R  Thom → Mikinaak Sand and Gravel LLC; 2024-03-14 to current/open; source msha-controller-operator-history