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Exhibit 8.1

GROUP SUBSIDIARIES*

​

At December 31, 2021

    

Country

    

Percentage of voting
share capital held

Wholly owned subsidiaries

 

 

Alexion Pharmaceuticals, Inc.

​

United States

​

100

Alexion Pharma International Operations Unlimited Company

​

Ireland

​

100

AstraZeneca AB

​

Sweden

​

100

AstraZeneca Biotech AB

​

Sweden

​

100

AstraZeneca Dunkerque Production SCS

​

France

​

100

AstraZeneca Finance and Holdings, Inc.

​

United States

​

100

AstraZeneca Intermediate Holdings Limited

​

England

​

100

AstraZeneca Pharmaceuticals Co., Limited

China

100

AstraZeneca Pharmaceutical (China) Co. Limited

​

China

​

100

AstraZeneca Treasury Limited

England

100

AstraZeneca UK Limited

England

100

AstraZeneca (Wuxi) Trading Co. Ltd

China

100

IPR Pharmaceuticals, Inc.

​

Puerto Rico

​

100

KuDOS Pharmaceuticals Limited

​

United Kingdom

​

100

MedImmune, LLC

United States

100


* Subsidiary companies which would be deemed to be a “significant subsidiary” in accordance with rule 1-02(w) of Regulation S-X as at December 31, 2021.