# Relationship history for MSHA mine 1601604

Current hierarchy: **Chris  McDaniel → KMAC Aggregates LLC → KMAC/Madden 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:** Richard R Dawson et al → KMAC/Madden Plant; 2018-11-15 to 2021-02-28; source msha-controller-operator-history
- **controller_controls_mine:** Richard R Dawson et al → KMAC/Madden Plant; 2021-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Pioneer Mining LLC → KMAC/Madden Plant; 2021-08-24 to 2022-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Richard R Dawson et al → Pioneer Mining LLC; 2021-08-24 to 2021-02-28; source msha-controller-operator-history
- **controller_controls_operator:** Christopher B McDaniel et al → Pioneer Mining LLC; 2021-08-24 to 2021-02-28; source msha-controller-operator-history
- **controller_controls_operator:** Michael L Busby et al → Pioneer Mining LLC; 2021-08-24 to 2021-02-28; source msha-controller-operator-history
- **controller_controls_operator:** Richard R Dawson et al → Pioneer Mining LLC; 2021-08-24 to 2022-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Christopher B McDaniel et al → Pioneer Mining LLC; 2021-08-24 to 2022-01-31; source msha-controller-operator-history
- **operator_operates_mine:** KMAC Aggregates LLC → KMAC/Madden Plant; 2022-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Chris  McDaniel → KMAC/Madden Plant; 2022-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Chris  McDaniel → KMAC Aggregates LLC; 2022-02-01 to current/open; source msha-controller-operator-history