# Relationship history for MSHA mine 4602050

Current hierarchy: **Rasnake Joyce E → Guyan Management Inc → No 1 Plant**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Chafin Coal Company Inc → No 1 Plant; 1950-01-01 to 1986-12-28; source msha-controller-operator-history
- **controller_controls_mine:** Chafin John C Sr → No 1 Plant; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Chafin John C Sr → Chafin Coal Company Inc; 1950-01-01 to 1986-12-28; source msha-controller-operator-history
- **operator_operates_mine:** L A Mine Service Inc → No 1 Plant; 1986-12-29 to 1987-08-23; source msha-controller-operator-history
- **controller_controls_mine:** Ellis Ermal → No 1 Plant; 1986-12-29 to 1987-08-23; source msha-controller-operator-history
- **controller_controls_operator:** Ellis Ermal → L A Mine Service Inc; 1986-12-29 to 1987-08-23; source msha-controller-operator-history
- **operator_operates_mine:** Silvertree Consulting Inc → No 1 Plant; 1987-08-24 to 1989-01-17; source msha-controller-operator-history
- **controller_controls_mine:** Jeff  Chillag et al → No 1 Plant; 1987-08-24 to 1989-01-17; source msha-controller-operator-history
- **controller_controls_operator:** Jeff  Chillag et al → Silvertree Consulting Inc; 1987-08-24 to 1989-01-17; source msha-controller-operator-history
- **controller_controls_mine:** Brown Gary M Jr → No 1 Plant; 1988-11-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Cindy B Coal Inc → No 1 Plant; 1989-01-18 to 1995-10-31; source msha-controller-operator-history
- **controller_controls_operator:** Brown Gary M Jr → Cindy B Coal Inc; 1989-01-18 to 1995-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Brown Jimmy Lee → No 1 Plant; 1995-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Okemo Corp → No 1 Plant; 1995-11-01 to 1996-09-02; source msha-controller-operator-history
- **controller_controls_operator:** Brown Jimmy Lee → Okemo Corp; 1995-11-01 to 1996-09-02; source msha-controller-operator-history
- **operator_operates_mine:** Guyan Management Inc → No 1 Plant; 1996-09-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Rasnake Joyce E → No 1 Plant; 1996-09-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rasnake Joyce E → Guyan Management Inc; 1996-09-03 to current/open; source msha-controller-operator-history