# Relationship history for MSHA mine 3402189

Current hierarchy: **Kenneth K  Wert → General Materials, Inc. → General Materials MacArthur 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Larry H  Lemon  et al → General Materials MacArthur Plant; 1979-05-01 to 2009-12-03; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth K  Wert → General Materials MacArthur Plant; 2009-12-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lansing Trade Group LLC → General Materials MacArthur Plant; 2014-11-18 to 2018-12-31; source msha-controller-operator-history
- **controller_controls_mine:** The Andersons, Inc → General Materials MacArthur Plant; 2019-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Titan Lansing, LLC → General Materials MacArthur Plant; 2019-02-28 to 2022-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Lansing Trade Group LLC → Titan Lansing, LLC; 2019-02-28 to 2018-12-31; source msha-controller-operator-history
- **controller_controls_operator:** The Andersons, Inc → Titan Lansing, LLC; 2019-02-28 to 2022-04-30; source msha-controller-operator-history
- **operator_operates_mine:** General Materials, Inc. → General Materials MacArthur Plant; 2022-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth K  Wert → General Materials, Inc.; 2022-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Larry H  Lemon  et al → General Materials, Inc.; 2022-05-01 to 2009-12-03; source msha-controller-operator-history