# Relationship history for MSHA mine 4105461

Current hierarchy: **Jose C Regalado; Sofia A Regalado → J&S Materials LLC → Odem Sand Plant**

- 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:** Travis R  Hemker et al → Odem Sand Plant; 2001-04-01 to 2016-06-26; source msha-controller-operator-history
- **controller_controls_mine:** Sofia A Regalado et al → Odem Sand Plant; 2016-05-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Travis R Hemker → Odem Sand Plant; 2016-06-27 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** BRANNT Valley Excavating → Odem Sand Plant; 2019-10-01 to 2020-04-02; source msha-controller-operator-history
- **controller_controls_operator:** Travis R Hemker → BRANNT Valley Excavating; 2019-10-01 to 2020-04-02; source msha-controller-operator-history
- **controller_controls_operator:** Travis R  Hemker et al → BRANNT Valley Excavating; 2019-10-01 to 2016-06-26; source msha-controller-operator-history
- **controller_controls_operator:** Robert A  Hemker et al → BRANNT Valley Excavating; 2019-10-01 to 2016-06-26; source msha-controller-operator-history
- **operator_operates_mine:** Soggy Bottoms Dredging, LLC → Odem Sand Plant; 2020-04-03 to 2023-11-02; source msha-controller-operator-history
- **controller_controls_mine:** Travis R Hemker → Odem Sand Plant; 2020-04-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Travis R Hemker → Soggy Bottoms Dredging, LLC; 2020-04-03 to 2023-11-02; source msha-controller-operator-history
- **operator_operates_mine:** J&S Materials LLC → Odem Sand Plant; 2023-11-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sofia A Regalado et al → J&S Materials LLC; 2023-11-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jose C Regalado et al → J&S Materials LLC; 2023-11-03 to current/open; source msha-controller-operator-history