# Relationship history for MSHA mine 3901653

Current hierarchy: **Berg Family Investments, LLC; BDG, LLC; Steve  Burns → Pacer Minerals → Pink Monster Mine**

- 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:** BDG, LLC et al → Pink Monster Mine; 2018-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Pacer Minerals → Pink Monster Mine; 2021-01-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** BDG, LLC et al → Pacer Minerals; 2021-01-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Berg Family Investments, LLC et al → Pacer Minerals; 2021-01-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steve  Burns et al → Pacer Minerals; 2021-01-05 to current/open; source msha-controller-operator-history