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Exhibit 17.1

Subsidiary Guarantors and Issuers of Guaranteed Registered Securities

Registered U.S. Bonds

Subsidiary Issuer

Parent Guarantor

1.200% Notes due 2026

AstraZeneca Finance LLC

AstraZeneca PLC

4.800% Notes due 2027

AstraZeneca Finance LLC

AstraZeneca PLC

1.750% Notes due 2028

AstraZeneca Finance LLC

AstraZeneca PLC

4.875% Notes due 2028

AstraZeneca Finance LLC

AstraZeneca PLC

4.850% Notes due 2029

AstraZeneca Finance LLC

AstraZeneca PLC

4.900% Notes due 2030

AstraZeneca Finance LLC

AstraZeneca PLC

2.250% Notes due 2031

AstraZeneca Finance LLC

AstraZeneca PLC

4.900% Notes due 2031

AstraZeneca Finance LLC

AstraZeneca PLC

4.875% Notes due 2033

AstraZeneca Finance LLC

AstraZeneca PLC

5.000% Notes due 2034

AstraZeneca Finance LLC

AstraZeneca PLC