Quotation Notice - Rua Bioscience Limited (“RUARC") Rights

22/09/2026 17:30 NZST, OFFER

QUOTATION NOTICE: NZX MAIN BOARD RUA BIOSCIENCE LIMITED (“RUA”) RIGHTS

Issuer: Rua Bioscience Limited (“RUA”)

Ticker Code: RUARC

ISIN: NZRUAE0007S4

Details of Issue: A pro-rata renounceable rights issue of 1 New Share for every 3 Existing Shares held on the Record Date, with fractional Entitlements being rounded down to the nearest share.

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

Settlement Status: NZCDC Settlement System

Key Dates

Ex Rights Date: Monday, 28 September 2026

Rights Commence Trading: Monday, 28 September 2026

Record Date: Tuesday, 29 September 2026

Letters of Entitlement mailed to Shareholders: Wednesday, 30 September 2026

Offer Opens: Wednesday, 30 September 2026

Rights Quotation Ceases: Friday, 9 October 2026

Offer Closes: Thursday, 15 October 2026

Allotment and commencement of trading of New Shares: Wednesday, 21 October 2026

Hishaam Mirza

Chief Executive Officer

NZX Limited

22 September 2026