Exhibit 17

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List of Subsidiary Issuers of Guaranteed Securities

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Each of the following subsidiaries of Haleon plc., a public limited company incorporated under the laws of England and Wales (the “Guarantor”), is issuer of the following outstanding securities, which are fully and unconditionally guaranteed by the Guarantor:

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Haleon US Capital LLC

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3.375% Fixed Rate Senior Notes due 2027

3.375% Fixed Rate Senior Notes due 2029

3.625% Fixed Rate Senior Notes due 2032

4.000% Fixed Rate Senior Notes due 2052

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Haleon UK Capital plc

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3.125% Fixed Rate Senior Notes due 2025