# Relationship history for MSHA mine 4104216

Current hierarchy: **Third Brick LLC → BC3B Salado Operations LLC → Salado USA**

- 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:** Salado Quarry Inc → Salado USA; 2000-09-01 to 2006-02-28; source msha-controller-operator-history
- **controller_controls_mine:** RLF Salado Properties LLC → Salado USA; 2000-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** RLF Salado Properties LLC → Salado Quarry Inc; 2000-09-01 to 2006-02-28; source msha-controller-operator-history
- **operator_operates_mine:** RLF Salado Quarries, LLC → Salado USA; 2006-03-01 to 2016-07-21; source msha-controller-operator-history
- **controller_controls_mine:** RLF Salado Properties LLC → Salado USA; 2006-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** RLF Salado Properties LLC → RLF Salado Quarries, LLC; 2006-03-01 to 2016-07-21; source msha-controller-operator-history
- **operator_operates_mine:** Salado Operations → Salado USA; 2016-07-22 to 2025-02-20; source msha-controller-operator-history
- **controller_controls_mine:** Wayne  Patterson → Salado USA; 2016-07-22 to 2021-03-21; source msha-controller-operator-history
- **controller_controls_operator:** Wayne  Patterson → Salado Operations; 2016-07-22 to 2021-03-21; source msha-controller-operator-history
- **controller_controls_mine:** Dos Rios Partners - A, LP et al → Salado USA; 2021-03-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dos Rios Partners - A, LP et al → Salado Operations; 2021-03-22 to 2025-02-20; source msha-controller-operator-history
- **controller_controls_operator:** Dos Rios Partners, LP et al → Salado Operations; 2021-03-22 to 2025-02-20; source msha-controller-operator-history
- **controller_controls_operator:** Main Street Equity Interests Inc et al → Salado Operations; 2021-03-22 to 2025-02-20; source msha-controller-operator-history
- **operator_operates_mine:** BC3B Salado Operations LLC → Salado USA; 2025-02-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Third Brick LLC → Salado USA; 2025-02-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Third Brick LLC → BC3B Salado Operations LLC; 2025-02-21 to current/open; source msha-controller-operator-history