# Relationship history for MSHA mine 2700381

Current hierarchy: **BRUCE P  COLL → C & C TRUCKING LLC → C & C PORTABLE 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** C & C TRUCKING LLC → C & C PORTABLE PLANT; 2002-11-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** BRUCE P  COLL → C & C PORTABLE PLANT; 2002-11-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** BRUCE P  COLL → C & C TRUCKING LLC; 2002-11-21 to current/open; source msha-controller-operator-history