# Relationship history for MSHA mine 4104209

Current hierarchy: **Vulcan Materials Company → Vulcan Construction Materials, LLC → Chatfield S&G**

- 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:** Legacy Vulcan Corp (Form:Vulcan Materials Co) → Chatfield S&G; 1950-01-01 to 2007-11-15; source msha-controller-operator-history
- **operator_operates_mine:** Go-Crete → Chatfield S&G; 2000-08-01 to 2005-12-04; source msha-controller-operator-history
- **controller_controls_mine:** John  Yowell Jr → Chatfield S&G; 2000-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John  Yowell Jr → Go-Crete; 2000-08-01 to 2005-12-04; source msha-controller-operator-history
- **operator_operates_mine:** Beall Concrete Enterprises LLC → Chatfield S&G; 2005-12-05 to 2010-05-26; source msha-controller-operator-history
- **controller_controls_mine:** US Concrete → Chatfield S&G; 2005-12-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** US Concrete → Beall Concrete Enterprises LLC; 2005-12-05 to 2010-05-26; source msha-controller-operator-history
- **controller_controls_mine:** Vulcan Materials Company → Chatfield S&G; 2007-11-16 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Redi-Mix, LLC → Chatfield S&G; 2010-05-27 to 2021-10-31; source msha-controller-operator-history
- **controller_controls_mine:** US Concrete → Chatfield S&G; 2010-05-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** US Concrete → Redi-Mix, LLC; 2010-05-27 to 2021-10-31; source msha-controller-operator-history
- **operator_operates_mine:** Vulcan Construction Materials, LLC → Chatfield S&G; 2021-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Vulcan Materials Company → Vulcan Construction Materials, LLC; 2021-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Legacy Vulcan Corp (Form:Vulcan Materials Co) → Vulcan Construction Materials, LLC; 2021-11-01 to 2007-11-15; source msha-controller-operator-history