# Relationship history for MSHA mine 4003067

Current hierarchy: **Vulcan Materials Company → Vulcan Constr. Materials, L.P. → South Friendsville Quarry**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Legacy Vulcan Corp (Form:Vulcan Materials Co) → South Friendsville Quarry; 1950-01-01 to 2007-11-15; source msha-controller-operator-history
- **operator_operates_mine:** Friendsville Crushed Stone Inc → South Friendsville Quarry; 1992-11-01 to 1998-08-16; source msha-controller-operator-history
- **controller_controls_mine:** Stanley  Mc Call  et al → South Friendsville Quarry; 1992-11-01 to 1998-08-16; source msha-controller-operator-history
- **controller_controls_operator:** Stanley  Mc Call  et al → Friendsville Crushed Stone Inc; 1992-11-01 to 1998-08-16; source msha-controller-operator-history
- **operator_operates_mine:** 321 Stone → South Friendsville Quarry; 1998-08-17 to 2000-07-23; source msha-controller-operator-history
- **controller_controls_mine:** John  Di Giulan  et al → South Friendsville Quarry; 1998-08-17 to 2000-07-23; source msha-controller-operator-history
- **controller_controls_operator:** John  Di Giulan  et al → 321 Stone; 1998-08-17 to 2000-07-23; source msha-controller-operator-history
- **operator_operates_mine:** Champion Rock Products Of Tennessee → South Friendsville Quarry; 2000-07-24 to 2002-01-06; source msha-controller-operator-history
- **controller_controls_mine:** James D  Uhlinger Sr → South Friendsville Quarry; 2000-07-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James D  Uhlinger Sr → Champion Rock Products Of Tennessee; 2000-07-24 to 2002-01-06; source msha-controller-operator-history
- **operator_operates_mine:** Titan Construction Materials LLC → South Friendsville Quarry; 2002-01-07 to 2004-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Dave  Rifenburg et al → South Friendsville Quarry; 2002-01-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dave  Rifenburg et al → Titan Construction Materials LLC; 2002-01-07 to 2004-06-30; source msha-controller-operator-history
- **controller_controls_operator:** James  Uhlinger Jr et al → Titan Construction Materials LLC; 2002-01-07 to 2004-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Vulcan Constr. Materials, L.P. → South Friendsville Quarry; 2004-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Legacy Vulcan Corp (Form:Vulcan Materials Co) → Vulcan Constr. Materials, L.P.; 2004-07-01 to 2007-11-15; source msha-controller-operator-history
- **controller_controls_mine:** Vulcan Materials Company → South Friendsville Quarry; 2007-11-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Vulcan Materials Company → Vulcan Constr. Materials, L.P.; 2007-11-16 to current/open; source msha-controller-operator-history