# Relationship history for MSHA mine 1601557

Current hierarchy: **Dunham Price Group LLC → South Coast Materials, LLC → South Coast Materials, 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:** Elite Sand & Aggregates, LLC → South Coast Materials, LLC; 2015-12-16 to 2020-01-31; source msha-controller-operator-history
- **controller_controls_mine:** Beau M  Perero et al → South Coast Materials, LLC; 2015-12-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Beau M  Perero et al → Elite Sand & Aggregates, LLC; 2015-12-16 to 2020-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Duane J  Perero et al → Elite Sand & Aggregates, LLC; 2015-12-16 to 2020-01-31; source msha-controller-operator-history
- **operator_operates_mine:** Newmark Acquisition, LLC → South Coast Materials, LLC; 2020-02-01 to 2021-01-24; source msha-controller-operator-history
- **controller_controls_mine:** Kevin A Cook et al → South Coast Materials, LLC; 2020-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kevin A Cook et al → Newmark Acquisition, LLC; 2020-02-01 to 2021-01-24; source msha-controller-operator-history
- **controller_controls_operator:** Mark  LaBorde et al → Newmark Acquisition, LLC; 2020-02-01 to 2021-01-24; source msha-controller-operator-history
- **operator_operates_mine:** Magic Sand and Gravel, LLC → South Coast Materials, LLC; 2021-01-25 to 2025-09-08; source msha-controller-operator-history
- **controller_controls_mine:** Jeffrey B Bartlam et al → South Coast Materials, LLC; 2021-01-25 to 2023-10-31; source msha-controller-operator-history
- **controller_controls_operator:** Jeffrey B Bartlam et al → Magic Sand and Gravel, LLC; 2021-01-25 to 2023-10-31; source msha-controller-operator-history
- **controller_controls_operator:** Stephen K Bowen et al → Magic Sand and Gravel, LLC; 2021-01-25 to 2023-10-31; source msha-controller-operator-history
- **controller_controls_mine:** BAS Mines Longville → South Coast Materials, LLC; 2023-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** BAS Mines Longville → Magic Sand and Gravel, LLC; 2023-11-01 to 2025-09-08; source msha-controller-operator-history
- **operator_operates_mine:** South Coast Materials, LLC → South Coast Materials, LLC; 2025-09-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Dunham Price Group LLC → South Coast Materials, LLC; 2025-09-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dunham Price Group LLC → South Coast Materials, LLC; 2025-09-09 to current/open; source msha-controller-operator-history