# Relationship history for MSHA mine 4607960

Current hierarchy: **Charles  Adkins → West Virginia-Tennessee Coal Sales Inc → Long Branch 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

- **controller_controls_mine:** Charles  Adkins → Long Branch Mine; 1989-06-19 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** West Virginia-Tennessee Coal Sales Inc → Long Branch Mine; 1990-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles  Adkins → West Virginia-Tennessee Coal Sales Inc; 1990-10-01 to current/open; source msha-controller-operator-history