# Relationship history for MSHA mine 0801300

Current hierarchy: **Titan Cement International S A → Titan Florida, LLC. → Corkscrew**

- 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:** Corkscrew Mining & Excavating Inc → Corkscrew; 2001-06-01 to 2004-12-09; source msha-controller-operator-history
- **controller_controls_mine:** Asa  Candler  et al → Corkscrew; 2001-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Asa  Candler  et al → Corkscrew Mining & Excavating Inc; 2001-06-01 to 2004-12-09; source msha-controller-operator-history
- **controller_controls_operator:** William  Fitzgerald  et al → Corkscrew Mining & Excavating Inc; 2001-06-01 to 2004-12-09; source msha-controller-operator-history
- **controller_controls_mine:** Titan Cement International S A → Corkscrew; 2003-07-14 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Westwind-Corkscrew Mining, LLC → Corkscrew; 2004-12-10 to 2008-01-31; source msha-controller-operator-history
- **controller_controls_mine:** Corkscrew Mining Ventures Ltd et al → Corkscrew; 2004-12-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Corkscrew Mining Ventures Ltd et al → Westwind-Corkscrew Mining, LLC; 2004-12-10 to 2008-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Westwind Resources LLC et al → Westwind-Corkscrew Mining, LLC; 2004-12-10 to 2008-01-31; source msha-controller-operator-history
- **operator_operates_mine:** Preferred Rocks of Corkscrew LLC → Corkscrew; 2008-02-01 to 2017-07-29; source msha-controller-operator-history
- **controller_controls_mine:** Mike  O'Neill et al → Corkscrew; 2008-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mike  O'Neill et al → Preferred Rocks of Corkscrew LLC; 2008-02-01 to 2017-07-29; source msha-controller-operator-history
- **operator_operates_mine:** Titan Florida, LLC. → Corkscrew; 2017-07-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Titan Cement International S A → Titan Florida, LLC.; 2017-07-30 to current/open; source msha-controller-operator-history