Company: WEBNF
Filing Date: 2025-06-26
Form Type: 424B5
Source: 0001104659-25-062718
Chunk: 112

Company: WESTPAC BANKING CORP
Filing Date: 2025-06-26
Form: 424B5
Chunk 112
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 New York Branch, 575 Fifth Avenue, 39th Floor, New York, New York 10017-2422, Attention: Branch Manager. Telephone requests may be directed to such person at +1 (212) 389-1269. Our website is available at www.westpac.com.au. Information contained in or accessible through the websites mentioned in this prospectus does not form part of this prospectus and all references in this prospectus to websites are inactive textual references and are for information only.

This prospectus is part of a registration statement that we have filed with the SEC relating to the Senior Debt Securities to be offered. This prospectus does not contain all of the information we have included in the registration statement and the accompanying exhibits and schedules in accordance with the rules and regulations of the SEC, and we refer you to the omitted information. The statements this prospectus makes pertaining to the content of any contract, agreement or other document that is an exhibit to the registration statement necessarily are summaries of their material provisions and do not describe all exceptions and qualifications contained in those contracts, agreements or documents. You should read those contracts, agreements or documents for information that may be important to you. The registration statement, exhibits and schedules are available through the SEC’s Internet site.

### INCORPORATION OF INFORMATION WE FILE WITH THE SEC
The SEC allows us to incorporate by reference the information we file with them, which means:

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incorporated documents are considered part of this prospectus;

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we can disclose important information to you by referring you to those documents;

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information that we file with the SEC will automatically update and supersede this prospectus and previously incorporated information.

We incorporate by reference the documents listed below which were filed with the SEC under the Exchange Act:

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our annual report on Form 20-F for the financial year ended September 30, 2024;

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the information contained in Exhibit 1 (2024 Pillar 3 Report) to our report on Form 6-K dated November 4, 2024;

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the information contained in our report on Form 6-K (Retirement of Group Executive, HR), excluding Exhibit 1, dated November 5, 2024; and

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the information contained in our report on Form 6-K (Retirement of Non-Executive Directors), excluding Exhibit 1, dated November 5, 2024.

We also incorporate by reference each of the following documents that we file with the SEC after the date of this prospectus until this offering is completed