---
title: "Mr Robert Antony Viana Tjia — Ownership Dossier"
canonical: https://whiteintel.dev/entity/8bc12fc6-e50e-5acb-8a72-e71c1790fa23
json: https://whiteintel.dev/api/public/dossier/8bc12fc6-e50e-5acb-8a72-e71c1790fa23
identifier: oo-person:GB-COH-PER-06637090-zAOZI10eTnSG1JGcJNOSgoaao8w
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr Robert Antony Viana Tjia

**Type:** Person  
**Jurisdiction:** GB  
**Identifier:** `oo-person:GB-COH-PER-06637090-zAOZI10eTnSG1JGcJNOSgoaao8w`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/8bc12fc6-e50e-5acb-8a72-e71c1790fa23  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/8bc12fc6-e50e-5acb-8a72-e71c1790fa23  

## Ownership & control

### Holdings / subsidiaries

- **GENGHIS OPTICAL SERVICES LIMITED** (beneficial owner) — 50% — https://whiteintel.dev/entity/09b3ba0b-c587-5534-b59e-e64ff0c17088

## Provenance

- OpenOwnership — https://www.openownership.org

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr Robert Antony Viana Tjia**. Human view: https://whiteintel.dev/entity/8bc12fc6-e50e-5acb-8a72-e71c1790fa23 · Structured JSON: https://whiteintel.dev/api/public/dossier/8bc12fc6-e50e-5acb-8a72-e71c1790fa23._

_Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._