# Relationship history for MSHA mine 3201050

Current hierarchy: **David  Baltrusch; Chad  Baltrusch → DC Aggregate LLC → F & G**

- 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

- **operator_operates_mine:** Gates Construction Inc → F & G; 2015-03-31 to 2022-04-06; source msha-controller-operator-history
- **controller_controls_mine:** Kevin M  Gates → F & G; 2015-03-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kevin M  Gates → Gates Construction Inc; 2015-03-31 to 2022-04-06; source msha-controller-operator-history
- **controller_controls_mine:** David  Baltrusch et al → F & G; 2020-01-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** DC Aggregate LLC → F & G; 2022-04-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David  Baltrusch et al → DC Aggregate LLC; 2022-04-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Chad  Baltrusch et al → DC Aggregate LLC; 2022-04-07 to current/open; source msha-controller-operator-history