---
title: "Chang Tsai, A-Ching — Ownership Dossier"
canonical: https://whiteintel.dev/entity/9efe3718-c001-55bf-bd8d-d75a2401afbe
json: https://whiteintel.dev/api/public/dossier/9efe3718-c001-55bf-bd8d-d75a2401afbe
identifier: icij:icijol-71475
jurisdiction: TW
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Chang Tsai, A-Ching

**Type:** Organization  
**Jurisdiction:** TW  
**Identifier:** `icij:icijol-71475`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/9efe3718-c001-55bf-bd8d-d75a2401afbe  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/9efe3718-c001-55bf-bd8d-d75a2401afbe  

## Ownership & control

### Holdings / subsidiaries

- **PORTAL HOLDINGS LIMITED** (director of) — https://whiteintel.dev/entity/cd7654eb-8ad9-53a5-91cb-b817252b2281
- **PORTAL HOLDINGS LIMITED** (shareholder of) — https://whiteintel.dev/entity/cd7654eb-8ad9-53a5-91cb-b817252b2281

## Provenance

- ICIJ Offshore Leaks — https://offshoreleaks.icij.org/nodes/71475

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **Chang Tsai, A-Ching** — https://whiteintel.dev/entity/9efe3718-c001-55bf-bd8d-d75a2401afbe · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Chang Tsai, A-Ching**. Human view: https://whiteintel.dev/entity/9efe3718-c001-55bf-bd8d-d75a2401afbe · Structured JSON: https://whiteintel.dev/api/public/dossier/9efe3718-c001-55bf-bd8d-d75a2401afbe._

_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"._