# Relationship history for MSHA mine 3402058

Current hierarchy: **Cornelio P  Enns; Steven  Rempel → Enrem Materials LLC → Enrem Materials**

- 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:** Enrem Materials LLC → Enrem Materials; 2007-12-04 to 2008-07-31; source msha-controller-operator-history
- **controller_controls_mine:** Michael P  Rempel  et al → Enrem Materials; 2007-12-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael P  Rempel  et al → Enrem Materials LLC; 2007-12-04 to 2008-07-31; source msha-controller-operator-history
- **controller_controls_operator:** Cornelio P  Enns  et al → Enrem Materials LLC; 2007-12-04 to 2008-07-31; source msha-controller-operator-history
- **operator_operates_mine:** Enrem Materials LLC → Enrem Materials; 2008-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Steven  Rempel et al → Enrem Materials; 2008-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steven  Rempel et al → Enrem Materials LLC; 2008-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cornelio P  Enns et al → Enrem Materials LLC; 2008-08-01 to current/open; source msha-controller-operator-history