# Relationship history for MSHA mine 2402816

Current hierarchy: **Levi  Thompson → Granite Concrete Products LLC → GCP Mobile 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

- **controller_controls_mine:** Richard  Thompson → GCP Mobile 2; 2020-02-04 to 2021-03-15; source msha-controller-operator-history
- **controller_controls_mine:** Levi  Thompson → GCP Mobile 2; 2021-03-16 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Granite Concrete Products LLC → GCP Mobile 2; 2025-04-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard  Thompson → Granite Concrete Products LLC; 2025-04-16 to 2021-03-15; source msha-controller-operator-history
- **controller_controls_operator:** Levi  Thompson → Granite Concrete Products LLC; 2025-04-16 to current/open; source msha-controller-operator-history