# Relationship history for MSHA mine 4608399

Current hierarchy: **Brandon  Nguyen; Michael  Turner → Ambush Mining Inc → Caretta #1 Mine**

- 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:** Caretta Mining Inc → Caretta #1 Mine; 1994-04-01 to 1995-01-08; source msha-controller-operator-history
- **controller_controls_mine:** Ward Frankie T → Caretta #1 Mine; 1994-04-01 to 2004-07-25; source msha-controller-operator-history
- **controller_controls_operator:** Ward Frankie T → Caretta Mining Inc; 1994-04-01 to 1995-01-08; source msha-controller-operator-history
- **operator_operates_mine:** Cu Chi Mining Inc → Caretta #1 Mine; 1995-01-09 to 1998-07-31; source msha-controller-operator-history
- **controller_controls_mine:** Truong  Van Nguyen et al → Caretta #1 Mine; 1995-01-09 to 1999-02-28; source msha-controller-operator-history
- **controller_controls_operator:** Truong  Van Nguyen et al → Cu Chi Mining Inc; 1995-01-09 to 1998-07-31; source msha-controller-operator-history
- **operator_operates_mine:** Bar-Hop Mining Inc → Caretta #1 Mine; 1998-08-01 to 1998-08-25; source msha-controller-operator-history
- **controller_controls_mine:** Kristi L  Turner → Caretta #1 Mine; 1998-08-01 to 1998-08-25; source msha-controller-operator-history
- **controller_controls_operator:** Kristi L  Turner → Bar-Hop Mining Inc; 1998-08-01 to 1998-08-25; source msha-controller-operator-history
- **operator_operates_mine:** Cu Chi Mining Inc → Caretta #1 Mine; 1998-08-26 to 1999-02-28; source msha-controller-operator-history
- **controller_controls_operator:** Truong  Van Nguyen et al → Cu Chi Mining Inc; 1998-08-26 to 1999-02-28; source msha-controller-operator-history
- **operator_operates_mine:** Ambush Mining Inc → Caretta #1 Mine; 1999-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Michael D  Turner  et al → Caretta #1 Mine; 1999-03-01 to 2008-04-15; source msha-controller-operator-history
- **controller_controls_operator:** Michael D  Turner  et al → Ambush Mining Inc; 1999-03-01 to 2008-04-15; source msha-controller-operator-history
- **controller_controls_operator:** William  Haskins  et al → Ambush Mining Inc; 1999-03-01 to 2008-04-15; source msha-controller-operator-history
- **controller_controls_mine:** William F  Adams → Caretta #1 Mine; 2004-07-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William F  Adams → Caretta Mining Inc; 2004-07-26 to 1995-01-08; source msha-controller-operator-history
- **controller_controls_mine:** Brandon  Nguyen  et al → Caretta #1 Mine; 2008-04-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brandon  Nguyen  et al → Ambush Mining Inc; 2008-04-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael  Turner  et al → Ambush Mining Inc; 2008-04-16 to current/open; source msha-controller-operator-history