# Relationship history for MSHA mine 0203436

Current hierarchy: **Gregory A  Robinson; Damian  Padilla; Renee  Padilla; Betsy K  Robinson → Damian's Materials, LLC → Agua Fria #2**

- 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:** Damian's Materials, LLC → Agua Fria #2; 2020-08-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Damian  Padilla et al → Agua Fria #2; 2020-08-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Damian  Padilla et al → Damian's Materials, LLC; 2020-08-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Renee  Padilla et al → Damian's Materials, LLC; 2020-08-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Betsy K  Robinson et al → Damian's Materials, LLC; 2020-08-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gregory A  Robinson et al → Damian's Materials, LLC; 2020-08-12 to current/open; source msha-controller-operator-history