# Relationship history for MSHA mine 1202471

Current hierarchy: **The Heritage Group → Heritage Aggregates, LLC → Midwest Calcium Carbonates**

- 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:** The Heritage Group → Midwest Calcium Carbonates; 1989-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** MCC → Midwest Calcium Carbonates; 2015-11-05 to 2019-05-31; source msha-controller-operator-history
- **controller_controls_mine:** NALC LLC et al → Midwest Calcium Carbonates; 2015-11-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** NALC LLC et al → MCC; 2015-11-05 to 2019-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Payson Capital Partners LLC et al → MCC; 2015-11-05 to 2019-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Heritage Aggregates, LLC → Midwest Calcium Carbonates; 2019-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** The Heritage Group → Heritage Aggregates, LLC; 2019-06-01 to current/open; source msha-controller-operator-history