# Relationship history for MSHA mine 2003628

Current hierarchy: **Thaddeus J  Bessinger; Bryan  Slott → C & E Excavating, Inc. → C&E Portable Plant 1**

- 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:** C & E Excavating, Inc. → C&E Portable Plant 1; 2022-03-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bryan  Slott et al → C&E Portable Plant 1; 2022-03-09 to 2023-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Bryan  Slott et al → C & E Excavating, Inc.; 2022-03-09 to 2023-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Jennifer L  Clark et al → C & E Excavating, Inc.; 2022-03-09 to 2023-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Thaddeus J  Bessinger et al → C & E Excavating, Inc.; 2022-03-09 to 2023-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Thaddeus J  Bessinger et al → C&E Portable Plant 1; 2024-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Thaddeus J  Bessinger et al → C & E Excavating, Inc.; 2024-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bryan  Slott et al → C & E Excavating, Inc.; 2024-01-01 to current/open; source msha-controller-operator-history