# Relationship history for MSHA mine 1701106

Current hierarchy: **Edward W Manter; Ann M Manter; Edward D Manter → Manter Construction of Maine, Inc. → MCM-ASHP**

- 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:** Manter Construction of Maine, Inc. → MCM-ASHP; 2023-10-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Edward W Manter et al → MCM-ASHP; 2023-10-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Edward W Manter et al → Manter Construction of Maine, Inc.; 2023-10-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Edward D Manter et al → Manter Construction of Maine, Inc.; 2023-10-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ann M Manter et al → Manter Construction of Maine, Inc.; 2023-10-23 to current/open; source msha-controller-operator-history