Opthea Ltd — Capital/Financing Update 2023

Aug 23, 2023

Market Announcement

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24 August 2023

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Opthea Limited (ASX: OPT) – Trading Halt

Description

The securities of Opthea Limited (‘OPT’) will be placed in trading halt at the request of OPT, pending it releasing an announcement. Unless ASX decides otherwise, the securities will remain in trading halt until the earlier of the commencement of normal trading on Monday, 28 August 2023 or when the announcement is released to the market.

Issued by

Melissa Kostopoulos

Adviser, Listings Compliance

Market Announcement 1/1 ASX Customer Service Centre 131 279 | asx.com.au

24 August 2023 ASX Limited

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24 August 2023

Melissa Kostopoulos Compliance Adviser, Listings Compliance (Melbourne) ASX Compliance Pty Ltd 525 Collins Street North Tower Level 4 Melbourne VIC 3000

By email: melissa.kostopoulos@asx.com.au tradinghaltsmelbourne@asx.com.au

Dear Melissa

Opthea Limited (ASX: OPT)

Request for Trading Halt

Pursuant to Listing Rule 17.1, Opthea Limited (ACN 006 340 567) ( Opthea ) requests an immediate trading halt in its quoted securities (ASX Code: OPT), to apply from the open of trading today, Thursday August 24, 2023.

In accordance with Listing Rule 17.1, Opthea provides the following information:

• the trading halt is requested pending an announcement by Opthea in relation to funding arrangements and a proposed equity raising;

• Opthea requests that the trading halt remain in place until the earlier of a further announcement to the market by Opthea in relation to completion of the institutional component of the equity raising or the commencement of trading on Monday, August 28, 2023; and

• Opthea is not aware of any reason why the trading halt should not be granted or any other information necessary to inform the market about the trading halt.

Yours sincerely

Karen Adams Company Secretary

Opthea Limited, Suite 0403, Level 4, 650 Chapel Street, South Yarra, Victoria 3141, Australia A.C.N. 006 340 567 l Telephone: +61 3 9826 0399 l Website: www.opthea.com