---
title: "Microbase Biotech Co. Ltd — Ownership Dossier"
canonical: https://whiteintel.dev/entity/efa4039f-5727-52de-9f12-e2ff9616e4cf
json: https://whiteintel.dev/api/public/dossier/efa4039f-5727-52de-9f12-e2ff9616e4cf
identifier: icij:icijol-168564
jurisdiction: WS
risk: High
source: WhiteIntel corporate-ownership graph
---

# Microbase Biotech Co. Ltd

**Type:** Company  
**Jurisdiction:** WS  
**Identifier:** `icij:icijol-168564`  
**Risk level:** High  
**Canonical dossier:** https://whiteintel.dev/entity/efa4039f-5727-52de-9f12-e2ff9616e4cf  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/efa4039f-5727-52de-9f12-e2ff9616e4cf  

## Ownership & control

### Owners / controllers

- **Lin Cheng Shan-Shan** (shareholder of) — https://whiteintel.dev/entity/77300e42-f3d2-5691-8df9-207a61685d6e
- **Lin Tyn-Chang** (shareholder of) — https://whiteintel.dev/entity/ee723ecc-aba2-513d-a2ce-61ae30962656
- **Portcullis TrustNet (Samoa) Limited** (shareholder of) — https://whiteintel.dev/entity/4be6a0d9-dbc6-5010-8e4f-af054f26fda9

### UBO chain (walk to the ultimate owner)

A **6-step** ownership/control chain to the ultimate beneficial owner is resolved for this entity. The full cited chain unlocks with a paid API key or a one-off dossier — https://whiteintel.dev/pricing.

## Exposure (derived from the ownership graph)

**1** owner upstream in this entity's ownership/control chain is flagged — a sanctions hit or a secrecy jurisdiction — an investigative lead by resolved identity, not a legal determination. The contributing parties and the hop-by-hop path unlock with a paid API key or a one-off dossier — https://whiteintel.dev/pricing.

## Provenance

- ICIJ Offshore Leaks — https://offshoreleaks.icij.org/nodes/168564

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Microbase Biotech Co. Ltd**. Human view: https://whiteintel.dev/entity/efa4039f-5727-52de-9f12-e2ff9616e4cf · Structured JSON: https://whiteintel.dev/api/public/dossier/efa4039f-5727-52de-9f12-e2ff9616e4cf._

_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"._