Amended: Updated Quotation Notice - RUARB

20/11/2025 15:29 NZDT, OFFER3

This is an amended release of the recently announced updated quotation notice for RUARB. The date mentioned in the text is the rights trading close date instead of closing date of the offer. Refer below for the corrected text.

Following the announcement from RUA regarding the extension of closing date for the rights offer from Friday, 28 November 2025 to Friday, 12 December 2025, please see attached an updated Quotation Notice.

UPDATED QUOTATION NOTICE: NZX MAIN BOARD

RUA BIOSCIENCE LIMITED (“RUARB”) RIGHTS

Issuer: Rua Bioscience Limited (“RUA”)

Ticker Code: RUARB

ISIN: NZRUAE0006S6

Details of Issue: A pro-rata renounceable rights issue of 1 new share for every 3 existing shares held on the Record Date.

Ratio (New: Existing): 1 : 3

Exercise Price: NZ$0.025 per new share

Reference Price: Calculated as head share price prior to quotation minus the Exercise Price

Issue Price Payable: In full on application

Registrar: Computershare Investor Services Limited (“RMLT”)

Settlement Status: NZCDC Settlement System

Key Dates

Ex Rights Date: Friday, 7 November 2025

Rights Commence Trading: Friday, 7 November 2025

Record Date: 5pm, Monday, 10 November 2025

Letters of Entitlement sent to Shareholders: Tuesday, 11 November 2025

Offer Opens: Tuesday, 11 November 2025

Rights Quotation Ceases: Monday, 8 December 2025

Offer Closes: Friday, 12 December 2025

Allotment and commencement of trading of New Shares (retail offer): Thursday, 18 December 2025

Mark Peterson

Chief Executive Officer

NZX Limited

20 November 2025