Rua Bioscience Limited — Share Issue/Capital Change 2026

May 21, 2026

RUA

BIOSCIENCE

Capital Change Notice

Section 1: Issuer information
Name of issuer	Rua Bioscience Limited
NZX ticker code	RUA
Class of financial product	Ordinary shares
ISIN (If unknown, check on NZX website)	NZRUAE0004S1
Currency	NZ$
Section 2: Capital change details
Number issued/acquired/redeemed	1,400,000 ordinary shares
Nominal value (if any)	N/A
Issue/acquisition/redemption price per security	$0.00
Nature of the payment (for example, cash or other consideration)	Zero cash – provision of $0 options to CEO
Amount paid up (if not in full)	N/A
Percentage of total class of Financial Products issued/acquired/redeemed/ (calculated on the number of Financial Products of the Class, excluding any Treasury Stock, in existence)¹	Rua currently has 338,041,705 ordinary shares on issue and 5,926,673 warrants on issue. This issue of ordinary shares represents 0.41% of the total ordinary shares plus warrants on issue (being the percentage should all warrants vest and be exercised).
For an issue of Convertible Financial Products or Options, the principal terms of Conversion (for example the Conversion price and Conversion date and the ranking of the Financial Product in relation to other Classes of Financial Product) or the Option (for example, the exercise price and exercise date)	Issue of Options at a Nill Issue and Exercise Price for ordinary shares which rank equally with all other fully paid ordinary shares.
Reason for issue/acquisition/redemption and specific authority for issue/acquisition/redemption/ (the reason for change must be identified here)	Placement of new ordinary shares to CEO as part of a long-term incentive plan.
Total number of Financial Products of the Class after the issue/acquisition/redemption/Conversion (excluding Treasury Stock) and the total number of Financial Products of the Class held as Treasury Stock after the issue/acquisition/redemption.	Total ordinary shares on issue: 339,441,705 ordinary shares
Total warrants on issue: 5,926,673 warrants
In the case of an acquisition of shares, whether those shares are to be held as treasury stock	N/A
Specific authority for the issue, acquisition, or redemption, including a reference to the rule pursuant to which the issue, acquisition, or redemption is made	Agreement with Board and Listing Rule 4.6.1

¹ The percentage is to be calculated immediately before the issue, acquisition, redemption or Conversion.

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Terms or details of the issue, acquisition, or redemption (for example: restrictions, escrow arrangements)	Issue of Options at a Nill Issue and Exercise Price for ordinary shares which rank equally with all other fully paid ordinary shares
Date of issue/acquisition/redemption	21/05/2026
Section 3: Authority for this announcement and contact person
Name of person authorised to make this announcement	Paul Naske
Contact person for this announcement	Paul Naske
Contact phone number	021 445 154
Contact email address	Paul.naske@ruabio.com
Date of release through MAP	21/05/2026