# Relationship history for MSHA mine 4703107

Current hierarchy: **Tod  Pauly; Anthony  Konya → Aggrecon, Ltd. → Aggrecon, Ltd.**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Aggrecon Ltd → Aggrecon, Ltd.; 1997-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** D Tod  Pauly → Aggrecon, Ltd.; 1997-05-01 to 2023-03-01; source msha-controller-operator-history
- **controller_controls_operator:** D Tod  Pauly → Aggrecon Ltd; 1997-05-01 to 2023-03-01; source msha-controller-operator-history
- **controller_controls_mine:** Tod  Pauly et al → Aggrecon, Ltd.; 2023-03-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tod  Pauly et al → Aggrecon Ltd; 2023-03-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Anthony  Konya et al → Aggrecon Ltd; 2023-03-02 to current/open; source msha-controller-operator-history