# Relationship history for MSHA mine 4104954

Current hierarchy: **Claudett  Espinoza; Juan  Diosdado → Imperial Products Supply, LLC → Imperial Products Supply, LLC**

- 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:** Escondido Stone → Imperial Products Supply, LLC; 2012-08-01 to 2019-12-16; source msha-controller-operator-history
- **controller_controls_mine:** Heron  Rodriguez → Imperial Products Supply, LLC; 2012-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Heron  Rodriguez → Escondido Stone; 2012-08-01 to 2019-12-16; source msha-controller-operator-history
- **operator_operates_mine:** Imperial Products Supply, LLC → Imperial Products Supply, LLC; 2019-12-17 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Juan  Diosdado et al → Imperial Products Supply, LLC; 2019-12-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Juan  Diosdado et al → Imperial Products Supply, LLC; 2019-12-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Claudett  Espinoza et al → Imperial Products Supply, LLC; 2019-12-17 to current/open; source msha-controller-operator-history