# Relationship history for MSHA mine 2103359

Current hierarchy: **Linus  Thull; Wayne  Thull → Thull Construction → JCI Screen 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

- **controller_controls_mine:** Wayne  Thull et al → JCI Screen Plant; 2000-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Thull Construction → JCI Screen Plant; 2003-07-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wayne  Thull et al → Thull Construction; 2003-07-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Linus  Thull et al → Thull Construction; 2003-07-10 to current/open; source msha-controller-operator-history