# Relationship history for MSHA mine 0800111

Current hierarchy: **Valerie  Carnes → Edgar Minerals, Inc. → Edgar Minerals, Inc.**

- 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:** Zemex Corp → Edgar Minerals, Inc.; 1950-01-01 to 2003-03-02; source msha-controller-operator-history
- **operator_operates_mine:** Edgar Plastic Kaolin Company → Edgar Minerals, Inc.; 1950-01-01 to 1978-11-30; source msha-controller-operator-history
- **controller_controls_mine:** Nl Industries Inc → Edgar Minerals, Inc.; 1950-01-01 to 1978-11-30; source msha-controller-operator-history
- **controller_controls_operator:** Nl Industries Inc → Edgar Plastic Kaolin Company; 1950-01-01 to 1978-11-30; source msha-controller-operator-history
- **operator_operates_mine:** Zemex Industrial Minerals → Edgar Minerals, Inc.; 1978-12-01 to 2008-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Zemex Corp → Zemex Industrial Minerals; 1978-12-01 to 2003-03-02; source msha-controller-operator-history
- **controller_controls_mine:** Cementos Pacasmayo SSA → Edgar Minerals, Inc.; 2003-03-03 to 2007-09-04; source msha-controller-operator-history
- **controller_controls_operator:** Cementos Pacasmayo SSA → Zemex Industrial Minerals; 2003-03-03 to 2007-09-04; source msha-controller-operator-history
- **controller_controls_mine:** Imerys S A → Edgar Minerals, Inc.; 2007-09-05 to 2011-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Imerys S A → Zemex Industrial Minerals; 2007-09-05 to 2008-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Edgar Minerals, Inc. → Edgar Minerals, Inc.; 2008-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lemuel Baylis  Carnes III → Edgar Minerals, Inc.; 2008-07-01 to 2024-03-26; source msha-controller-operator-history
- **controller_controls_operator:** Lemuel Baylis  Carnes III → Edgar Minerals, Inc.; 2008-07-01 to 2024-03-26; source msha-controller-operator-history
- **controller_controls_mine:** Norsk Mineral AS  et al → Edgar Minerals, Inc.; 2011-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Norsk Mineral AS  et al → Zemex Industrial Minerals; 2011-04-01 to 2008-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Imerys S A  et al → Zemex Industrial Minerals; 2011-04-01 to 2008-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Valerie  Carnes → Edgar Minerals, Inc.; 2024-03-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Valerie  Carnes → Edgar Minerals, Inc.; 2024-03-27 to current/open; source msha-controller-operator-history