# Relationship history for MSHA mine 0901120

Current hierarchy: **Cary E  Morris → Georgia Hi-Cal, Inc. → Georgia Hi-Cal, Inc.**

- 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:** American Lime & Dolomite Inc → Georgia Hi-Cal, Inc.; 1999-06-01 to 2002-09-30; source msha-controller-operator-history
- **controller_controls_mine:** Charles C  Morris → Georgia Hi-Cal, Inc.; 1999-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles C  Morris → American Lime & Dolomite Inc; 1999-06-01 to 2002-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Georgia Hi-Cal, Inc. → Georgia Hi-Cal, Inc.; 2002-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Cary E  Morris → Georgia Hi-Cal, Inc.; 2002-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cary E  Morris → Georgia Hi-Cal, Inc.; 2002-10-01 to current/open; source msha-controller-operator-history