FRN Variable Rate Fix

As Agent Bank, please be advised of the following rate determined on: 1/5/2026
Issue	¦ Westpac Banking Corporation - Series 2023-C1 GBP 750,000,000 FRN due in Jan 2028
ISIN Number	¦ XS2573686883
ISIN Reference	¦ 257368688
Issue Nomin GBP	¦ 750000000
Period	¦ 10/14/2025 to 1/12/2026						Payment Date 1/12/2026
Number of Days	¦ 90
Rate	¦ 4.7008
Denomination GBP	¦ 1000			¦ 750000000					¦
Amount Payable per Denomination	¦ 11.59			¦ 8692500					¦
Bank of New York
Rate Fix Desk	Telephone						¦ 44 1202 689580
Corporate Trust Services		Facsimile					¦ 44 1202 689601

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