# Relationship history for MSHA mine 2601503

Current hierarchy: **AngloGold Ashanti Ltd → AngloGold Ashanti Sterling Inc. → Sterling 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

- **operator_operates_mine:** Sterling Gold Mining Corp → Sterling Mine; 1978-12-01 to 2017-05-29; source msha-controller-operator-history
- **controller_controls_mine:** Imperial Metals Corp → Sterling Mine; 1978-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Imperial Metals Corp → Sterling Gold Mining Corp; 1978-12-01 to 2017-05-29; source msha-controller-operator-history
- **operator_operates_mine:** AngloGold Ashanti Sterling Inc. → Sterling Mine; 2017-05-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Northern Empire Resources Corp → Sterling Mine; 2017-05-30 to 2018-10-03; source msha-controller-operator-history
- **controller_controls_operator:** Northern Empire Resources Corp → AngloGold Ashanti Sterling Inc.; 2017-05-30 to 2018-10-03; source msha-controller-operator-history
- **controller_controls_mine:** Coeur Mining, Inc. → Sterling Mine; 2018-10-04 to 2022-11-03; source msha-controller-operator-history
- **controller_controls_operator:** Coeur Mining, Inc. → AngloGold Ashanti Sterling Inc.; 2018-10-04 to 2022-11-03; source msha-controller-operator-history
- **controller_controls_mine:** AngloGold Ashanti Ltd → Sterling Mine; 2022-11-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** AngloGold Ashanti Ltd → AngloGold Ashanti Sterling Inc.; 2022-11-04 to current/open; source msha-controller-operator-history