# Relationship history for MSHA mine 1519707

Current hierarchy: **Alex  Brown; Pam  Brown → CARBON TRADING INC. → FIRST CREEK/HARVEYTON AML REFUSE REMOVAL**

- 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:** CARBON TRADING INC. → FIRST CREEK/HARVEYTON AML REFUSE REMOVAL; 2013-06-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Pam  Brown et al → FIRST CREEK/HARVEYTON AML REFUSE REMOVAL; 2013-06-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pam  Brown et al → CARBON TRADING INC.; 2013-06-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alex  Brown et al → CARBON TRADING INC.; 2013-06-07 to current/open; source msha-controller-operator-history