# Relationship history for MSHA mine 4104911

Current hierarchy: **H I G Capital LLC → ACG Materials → ACG Eagleford Atkinson**

- 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:** Charles W  Harrison Jr → ACG Eagleford Atkinson; 1950-01-01 to 2014-07-14; source msha-controller-operator-history
- **controller_controls_mine:** Matthew Ward  Hanna → ACG Eagleford Atkinson; 2010-08-04 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Pinnacle Materials, Inc. → ACG Eagleford Atkinson; 2011-10-26 to 2012-05-03; source msha-controller-operator-history
- **controller_controls_operator:** Matthew Ward  Hanna → Pinnacle Materials, Inc.; 2011-10-26 to 2012-05-03; source msha-controller-operator-history
- **controller_controls_mine:** Matthew Ward  Hanna → ACG Eagleford Atkinson; 2012-04-23 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Pinnacle Materials LLC → ACG Eagleford Atkinson; 2012-05-04 to 2013-08-07; source msha-controller-operator-history
- **controller_controls_operator:** Matthew Ward  Hanna → Pinnacle Materials LLC; 2012-05-04 to 2013-08-07; source msha-controller-operator-history
- **operator_operates_mine:** Allied Custom Gypsum → ACG Eagleford Atkinson; 2013-08-08 to 2013-08-08; source msha-controller-operator-history
- **controller_controls_operator:** Charles W  Harrison Jr → Allied Custom Gypsum; 2013-08-08 to 2013-08-08; source msha-controller-operator-history
- **operator_operates_mine:** ACG Materials → ACG Eagleford Atkinson; 2013-08-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Charles W  Harrison Jr → ACG Eagleford Atkinson; 2013-08-09 to 2015-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Charles W  Harrison Jr → ACG Materials; 2013-08-09 to 2015-09-30; source msha-controller-operator-history
- **controller_controls_mine:** H I G Capital LLC → ACG Eagleford Atkinson; 2014-07-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** H I G Capital LLC → Allied Custom Gypsum; 2014-07-15 to 2013-08-08; source msha-controller-operator-history
- **controller_controls_mine:** H I G Capital LLC → ACG Eagleford Atkinson; 2015-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** H I G Capital LLC → ACG Materials; 2015-10-01 to current/open; source msha-controller-operator-history