# Relationship history for MSHA mine 5100267

Current hierarchy: **Nan Chul Patrick"  Shin" → Nan, Inc. → Mobile One Cone 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:** Christian D  Twigg Smith → Mobile One Cone Plant; 2003-05-14 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** CTS Earthmoving Inc → Mobile One Cone Plant; 2006-02-06 to 2012-09-19; source msha-controller-operator-history
- **controller_controls_operator:** Christian D  Twigg Smith → CTS Earthmoving Inc; 2006-02-06 to 2012-09-19; source msha-controller-operator-history
- **operator_operates_mine:** Nan, Inc. → Mobile One Cone Plant; 2012-09-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Fooney  Freestone et al → Mobile One Cone Plant; 2012-09-20 to 2022-08-18; source msha-controller-operator-history
- **controller_controls_operator:** Fooney  Freestone et al → Nan, Inc.; 2012-09-20 to 2022-08-18; source msha-controller-operator-history
- **controller_controls_operator:** Lane  Uchimura et al → Nan, Inc.; 2012-09-20 to 2022-08-18; source msha-controller-operator-history
- **controller_controls_mine:** Nan Chul Patrick"  Shin" → Mobile One Cone Plant; 2022-08-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Nan Chul Patrick"  Shin" → Nan, Inc.; 2022-08-19 to current/open; source msha-controller-operator-history