# Relationship history for MSHA mine 4202063

Current hierarchy: **CCI  (Clyde Companies Inc) → Suncore Construction and Materials Inc. → RANDLETT PIT**

- 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

- **controller_controls_mine:** CCI  (Clyde Companies Inc) → RANDLETT PIT; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tri-County Concrete → RANDLETT PIT; 1990-07-01 to 2018-11-15; source msha-controller-operator-history
- **controller_controls_mine:** Shane  Gardner → RANDLETT PIT; 1990-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Shane  Gardner → Tri-County Concrete; 1990-07-01 to 2018-11-15; source msha-controller-operator-history
- **operator_operates_mine:** Suncore Construction and Materials Inc. → RANDLETT PIT; 2018-11-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CCI  (Clyde Companies Inc) → Suncore Construction and Materials Inc.; 2018-11-16 to current/open; source msha-controller-operator-history