# Relationship history for MSHA mine 1200049

Current hierarchy: **Polycor Inc → IN Limestone Co → Adams Quarry**

- 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:** Tucker John D Et Al → Adams Quarry; 1986-01-06 to 2002-12-22; source msha-controller-operator-history
- **operator_operates_mine:** Indiana Limestone Company Inc → Adams Quarry; 1992-04-01 to 2017-09-24; source msha-controller-operator-history
- **controller_controls_operator:** Tucker John D Et Al → Indiana Limestone Company Inc; 1992-04-01 to 2002-12-22; source msha-controller-operator-history
- **controller_controls_mine:** Johnson Ventures II Incorporated → Adams Quarry; 2002-12-23 to 2010-11-14; source msha-controller-operator-history
- **controller_controls_operator:** Johnson Ventures II Incorporated → Indiana Limestone Company Inc; 2002-12-23 to 2010-11-14; source msha-controller-operator-history
- **controller_controls_mine:** Resilience Capital Partners → Adams Quarry; 2010-11-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Resilience Capital Partners → Indiana Limestone Company Inc; 2010-11-15 to 2017-09-24; source msha-controller-operator-history
- **controller_controls_mine:** Limestone Holdings Corporation → Adams Quarry; 2014-05-02 to 2014-05-12; source msha-controller-operator-history
- **controller_controls_mine:** Wynnchurch Capital → Adams Quarry; 2014-05-13 to 2018-10-10; source msha-controller-operator-history
- **operator_operates_mine:** IN Limestone Co → Adams Quarry; 2017-09-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Limestone Holdings Corporation → IN Limestone Co; 2017-09-25 to 2014-05-12; source msha-controller-operator-history
- **controller_controls_operator:** Wynnchurch Capital → IN Limestone Co; 2017-09-25 to 2018-10-10; source msha-controller-operator-history
- **controller_controls_mine:** Polycor Inc → Adams Quarry; 2018-10-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Polycor Inc → IN Limestone Co; 2018-10-11 to current/open; source msha-controller-operator-history