# Relationship history for MSHA mine 0900684

Current hierarchy: **First Bauxite LLC → FBX Ceramics Holdings nka US Ceramics, LLC → Andersonville 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Cytec Industries Inc → Andersonville Plant; 1950-01-01 to 1996-12-04; source msha-controller-operator-history
- **controller_controls_mine:** American Cyanamid Company → Andersonville Plant; 1950-01-01 to 1996-12-04; source msha-controller-operator-history
- **controller_controls_operator:** American Cyanamid Company → Cytec Industries Inc; 1950-01-01 to 1996-12-04; source msha-controller-operator-history
- **controller_controls_mine:** Asea Brown Boveri Ltd (ABB) → Andersonville Plant; 1950-01-01 to 2004-01-04; source msha-controller-operator-history
- **operator_operates_mine:** Mullite Company Of America → Andersonville Plant; 1996-12-05 to 2013-01-07; source msha-controller-operator-history
- **controller_controls_operator:** Asea Brown Boveri Ltd (ABB) → Mullite Company Of America; 1996-12-05 to 2004-01-04; source msha-controller-operator-history
- **controller_controls_mine:** Imerys S A → Andersonville Plant; 2004-01-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Imerys S A → Mullite Company Of America; 2004-01-05 to 2013-01-07; source msha-controller-operator-history
- **operator_operates_mine:** Imerys Oilfield Minerals, Inc → Andersonville Plant; 2013-01-08 to 2022-03-28; source msha-controller-operator-history
- **controller_controls_mine:** Imerys S A → Andersonville Plant; 2013-01-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Imerys S A → Imerys Oilfield Minerals, Inc; 2013-01-08 to 2022-03-28; source msha-controller-operator-history
- **operator_operates_mine:** FBX Ceramics Holdings nka US Ceramics, LLC → Andersonville Plant; 2022-03-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** First Bauxite LLC → Andersonville Plant; 2022-03-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** First Bauxite LLC → FBX Ceramics Holdings nka US Ceramics, LLC; 2022-03-29 to current/open; source msha-controller-operator-history