# Relationship history for MSHA mine 4608976

Current hierarchy: **Sev.en Global Investments a.s. → Rockhouse Creek Development, LLC → No. 9**

- 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:** International Industries Inc → No. 9; 1987-11-01 to 2011-04-17; source msha-controller-operator-history
- **controller_controls_mine:** International Industries Inc → No. 9; 1999-06-01 to 2007-07-15; source msha-controller-operator-history
- **operator_operates_mine:** Hampden Coal Company, Inc. → No. 9; 2002-11-01 to 2007-10-17; source msha-controller-operator-history
- **controller_controls_operator:** International Industries Inc → Hampden Coal Company, Inc.; 2002-11-01 to 2007-10-17; source msha-controller-operator-history
- **controller_controls_mine:** International Resources LLC → No. 9; 2007-07-16 to 2011-04-17; source msha-controller-operator-history
- **operator_operates_mine:** Rockhouse Creek Development, LLC → No. 9; 2007-10-18 to 2015-03-15; source msha-controller-operator-history
- **controller_controls_operator:** International Resources LLC → Rockhouse Creek Development, LLC; 2007-10-18 to 2011-04-17; source msha-controller-operator-history
- **controller_controls_operator:** International Industries Inc → Rockhouse Creek Development, LLC; 2007-10-18 to 2007-07-15; source msha-controller-operator-history
- **controller_controls_mine:** James River Coal Company → No. 9; 2011-04-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James River Coal Company → Hampden Coal Company, Inc.; 2011-04-18 to 2007-10-17; source msha-controller-operator-history
- **controller_controls_operator:** James River Coal Company → Rockhouse Creek Development, LLC; 2011-04-18 to 2015-03-15; source msha-controller-operator-history
- **controller_controls_mine:** Blackhawk Mining LLC → No. 9; 2014-09-01 to 2020-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Rockhouse Creek Development, LLC → No. 9; 2015-03-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Blackhawk Mining LLC → Rockhouse Creek Development, LLC; 2015-03-16 to 2020-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Sev.en Global Investments a.s. → No. 9; 2020-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sev.en Global Investments a.s. → Rockhouse Creek Development, LLC; 2020-06-01 to current/open; source msha-controller-operator-history