# Relationship history for MSHA mine 2700567

Current hierarchy: **Joane E Champagne; Jonathan E Champagne → Champagne Quality Aggregates LLC → Portable Crusher**

- 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

- **controller_controls_mine:** Jonathan E Champagne et al → Portable Crusher; 2022-04-04 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Champagne Quality Aggregates LLC → Portable Crusher; 2025-07-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jonathan E Champagne et al → Champagne Quality Aggregates LLC; 2025-07-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joane E Champagne et al → Champagne Quality Aggregates LLC; 2025-07-02 to current/open; source msha-controller-operator-history