# Relationship history for MSHA mine 1500149

Current hierarchy: **GNTT Holdings LLC → L R Chapman Inc → L R Chapman 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

- **controller_controls_mine:** Lafarge S A → L R Chapman Inc; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** L R Chapman Inc → L R Chapman Inc; 1950-01-01 to 1985-12-31; source msha-controller-operator-history
- **controller_controls_mine:** L R Chapman Inc → L R Chapman Inc; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** L R Chapman Inc → L R Chapman Inc; 1950-01-01 to 1985-12-31; source msha-controller-operator-history
- **operator_operates_mine:** American Olean Tile → L R Chapman Inc; 1986-01-01 to 1988-10-02; source msha-controller-operator-history
- **controller_controls_operator:** Lafarge S A → American Olean Tile; 1986-01-01 to 1988-10-02; source msha-controller-operator-history
- **operator_operates_mine:** American Olean Tile Company Inc → L R Chapman Inc; 1988-10-03 to 1995-12-30; source msha-controller-operator-history
- **controller_controls_mine:** Armstrong World Industries Inc → L R Chapman Inc; 1988-10-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Armstrong World Industries Inc → American Olean Tile Company Inc; 1988-10-03 to 1995-12-30; source msha-controller-operator-history
- **operator_operates_mine:** Dal-Tile → L R Chapman Inc; 1995-12-31 to 2003-03-06; source msha-controller-operator-history
- **controller_controls_mine:** Dal-Tile International Inc → L R Chapman Inc; 1995-12-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dal-Tile International Inc → Dal-Tile; 1995-12-31 to 2003-03-06; source msha-controller-operator-history
- **controller_controls_mine:** Suellen  Trunnell → L R Chapman Inc; 2002-03-31 to 2005-08-22; source msha-controller-operator-history
- **operator_operates_mine:** L R Chapman Inc → L R Chapman Inc; 2003-03-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Suellen  Trunnell → L R Chapman Inc; 2003-03-07 to 2005-08-22; source msha-controller-operator-history
- **controller_controls_mine:** Cristco Midland Group LLC → L R Chapman Inc; 2005-08-23 to 2016-07-15; source msha-controller-operator-history
- **controller_controls_operator:** Cristco Midland Group LLC → L R Chapman Inc; 2005-08-23 to 2016-07-15; source msha-controller-operator-history
- **controller_controls_mine:** GNTT Holdings LLC → L R Chapman Inc; 2016-07-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** GNTT Holdings LLC → L R Chapman Inc; 2016-07-16 to current/open; source msha-controller-operator-history