# Relationship history for MSHA mine 5100292

Current hierarchy: **David  Hulihee; Leonard KP  Leong → Royal Contracting Co. Ltd → Pegson 1**

- 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:** Royal Contracting Co. Ltd → Pegson 1; 2008-04-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** David  Hulihee et al → Pegson 1; 2008-04-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David  Hulihee et al → Royal Contracting Co. Ltd; 2008-04-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Leonard KP  Leong et al → Royal Contracting Co. Ltd; 2008-04-22 to current/open; source msha-controller-operator-history