Westpac Self-Funding Instalments over securities in OSH

Structured Investments
Level 11, Tower Two
International Towers Sydney
200 Barangaroo Avenue
Barangaroo NSW 2000

Telephone: 1800 990 107
www.westpac.com.au/structuredinvestments

9 December 2021


Mr Martin Dinh
Warrant Administration
Australian Securities Exchange
Level 6, 20 Bridge St
Sydney NSW 2000


Dear Mr Dinh

Re: Westpac Self-Funding Instalments over securities in Oil Search Limited (OSH)

Westpac Banking Corporation (“Westpac”) is the issuer of the following series of Westpac Self-
Funding Instalments (“Westpac SFIs”) over securities in OSH:

OSHSWB
OSHSWC

On 9 December 2021, Oil Search Limited (“Oil Search”) announced that the National Court of Papua
New Guinea had made orders approving the scheme of arrangement (“Scheme”) under which Santos
Limited (“Santos”) will acquire all of the shares in Oil Search in return for the issue of new Santos
shares to Oil Search shareholders. This follows approval of the Scheme by Oil Search shareholders
at the Scheme meeting on 7 December 2021.

Oil Search expects to lodge a certified copy of the orders with the Papua New Guinea Registrar of
Companies, in accordance with the merger implementation deed between Oil Search and Santos
dated 10 September 2021, on 10 December 2021, at which time the Scheme will become effective. If
this occurs, Oil Search will apply for its shares to be suspended from trading on the PNGX and ASX
with effect from close of trade on 10 December 2021.

Consequently, pursuant to clause 12.1(a)(iv) of the Terms of Issue, Westpac has determined to fix an
Accelerated Completion Date for the above series of Westpac SFIs of 30 December 2021.

As a consequence of the above, Westpac requests a suspension from trading for the above series of
Westpac SFIs from close of trading 9 December 2021 until close of trading of the Accelerated
Completion Date of 30 December 2021 at which time they will be delisted.

Should you require us to make a manual market in the above series of Westpac SFIs, please contact
Westpac Structured Investments on 1800 990 107.

For further information please contact Westpac Structured Investments on 1800 990 107.

Capitalised terms not otherwise defined in this announcement have the same meaning as given in the
Westpac SFIs Product Disclosure Statement.

This document has been authorised for release by Tim Hartin, General Manager & Company
Secretary.