# Relationship history for MSHA mine 2003560

Current hierarchy: **Robert  Clawson → C2 Aggregates, LLC → Wash Plant #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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** L & L Materials → Wash Plant #2; 2018-05-30 to 2025-12-11; source msha-controller-operator-history
- **controller_controls_mine:** Nathan  Knight et al → Wash Plant #2; 2018-05-30 to 2018-11-30; source msha-controller-operator-history
- **controller_controls_operator:** Nathan  Knight et al → L & L Materials; 2018-05-30 to 2018-11-30; source msha-controller-operator-history
- **controller_controls_operator:** Henry R  Rosendall et al → L & L Materials; 2018-05-30 to 2018-11-30; source msha-controller-operator-history
- **controller_controls_operator:** Bill H  Henke et al → L & L Materials; 2018-05-30 to 2018-11-30; source msha-controller-operator-history
- **controller_controls_mine:** Nathan  Knight → Wash Plant #2; 2018-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Nathan  Knight → L & L Materials; 2018-12-01 to 2025-12-11; source msha-controller-operator-history
- **controller_controls_mine:** Robert  Clawson → Wash Plant #2; 2025-04-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** C2 Aggregates, LLC → Wash Plant #2; 2025-12-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert  Clawson → C2 Aggregates, LLC; 2025-12-12 to current/open; source msha-controller-operator-history