# Relationship history for MSHA mine 2700574

Current hierarchy: **Keith A Dupuis → JCK Sand and Gravel, LLC → JCK Crusher**

- 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:** Cliff A  Pelissier → JCK Crusher; 2005-03-31 to 2022-06-27; source msha-controller-operator-history
- **controller_controls_mine:** Keith A Dupuis → JCK Crusher; 2022-06-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** JCK Sand and Gravel, LLC → JCK Crusher; 2026-03-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cliff A  Pelissier → JCK Sand and Gravel, LLC; 2026-03-30 to 2022-06-27; source msha-controller-operator-history
- **controller_controls_operator:** Keith A  Dupuis → JCK Sand and Gravel, LLC; 2026-03-30 to 2022-06-27; source msha-controller-operator-history
- **controller_controls_operator:** Keith A Dupuis → JCK Sand and Gravel, LLC; 2026-03-30 to current/open; source msha-controller-operator-history