TETRATHERIX LIMITED — Major Shareholding Notification 2025

Jun 30, 2025

603 Page 1 of 4 15 July 2001

Form 603

Corporations Act 2001

Section 671B

Notice of initial substantial holder

To Company Name/Scheme Tetratherix Limited

ACN/ARSN 607 771 077

1. Details of substantial holder (1)

RADAR VENTURES LIMITED PARTNERSHIP (Limited Partnership registered in Name New Zealand)

ACN/ARSN (if applicable)

The holder became a substantial holder on 30 / 06 / 2025

2. Details of voting power

The total number of votes attached to all the voting shares in the company or voting interests in the scheme that the substantial holder or an associate (2) had a relevant interest (3) in on the date the substantial holder became a substantial holder are as follows:

Class of securities (4)	Number of securities	Person's votes (5)	Voting power (6)
Ordinary Shares	6,691,217	6,691,217	13.3

3. Details of relevant interests

The nature of the relevant interest the substantial holder or an associate had in the following voting securities on the date the substantial holder became a substantial holder are as follows:

Holder of relevant interest	Nature of relevant interest (7)	Class and number of securities
RADAR VENTURES LIMITED PARTNERSHIP	Section 608(1)(a) - registered holder of securities	6,691,217 Ordinary Shares
RADAR VENTURES GP LIMITED	Section 608(1)(b) being that Radar Ventures GP Limited has the power to exercise, or control the exercise of, a right to vote attached to the securities Section 608(1)(c) being the Radar Ventures GP Limited has the power acting with Radar Ventures Pty Ltd and the 0to60 Investment Trust to dispose of, or control the exercise of a power to dispose of, the securities. Section 608(3)(b) being that Radar Ventures GP Limited has the power to control Radar Ventures Limited Partnership.	6,691,217 Ordinary Shares
RADAR VENTURES PTY LIMITED	Section 608(1)(c) being that Radar Ventures Pty Ltd has the power acting jointly with the 0to60 Investment Trust and Radar Ventures GP Limited to dispose of, or control the exercise of a power to dispose of, the securities. Section 608(3)(a) being that	6,691,217 Ordinary Shares

603 Page 2 of 4 15 July 2001

	Radar Ventures Pty Ltd has voting power above 20% in Radar Ventures Limited Partnership.
ATLANTA MILNER ONEILL DANIEL	Section 608(3)(b) being that Atlanta Daniel controls Radar Ventures Pty Ltd.	6,691,217 Ordinary Shares
0TO60 INVESTMENT TRUST	Section 608(1)(c) being that the 0to60 Investment Trust has the power acting jointly with Radar Ventures Pty Ltd and Radar Ventures GP Limited to dispose of, or control the exercise of a power to dispose of, the securities. Section 608(3)(a) being that the 0to60 Investment Trust has voting power above 20% in Radar Ventures Limited Partnership.	6,691,217 Ordinary Shares

4. Details of present registered holders

The persons registered as holders of the securities referred to in paragraph 3 above are as follows:

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Holder of relevant Registered holder of Person entitled to be Class and number of securities
interest securities registered as holder (8)
RADAR
VENTURES
LIMITED
PARTNERSHIP
RADAR
VENTURES GP
LIMITED
RADAR
RADAR VENTURES RADAR VENTURES 2,083,333 Ordinary
VENTURES PTY
LIMITED PARTNERSHIP LIMITED PARTNERSHIP Shares
LTD
ATLANTA
MILNER
DANIEL
0TO60
INVESTMENT
TRUST
RADAR
VENTURES
LIMITED
PARTNERSHIP
RADAR
VENTURES GP
LIMITED RADAR VENTURES GP
RADAR LIMITED (as general
RADAR VENTURES 4,607,884 Ordinary
VENTURES PTY partner of RADAR
LIMITED PARTNERSHIP Shares
LTD VENTURES LIMITED
ATLANTA PARTNERSHIP)
MILNER
DANIEL
0TO60
INVESTMENT
TRUST
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5. Consideration

The consideration paid for each relevant interest referred to in paragraph 3 above, and acquired in the four months prior to the day that the substantial holder became a substantial holder is as follows:

Holder of relevant interest	Date of acquisition	Consideration (9)		Class and number of securities
		Cash	Non-cash

603 Page 3 of 4 15 July 2001

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Radar Ventures GP
Limited as general 571 preference A
AU$250,313.93
partner of Radar 14/08/2023 shares (subject to
in aggregate
Ventures Limited share split in 2025)
Partnership
Radar Ventures GP
Limited as general 571 preference A
AU$250,313.93
partner of Radar 14/11/2023 shares (subject to
in aggregate
Ventures Limited share split in 2025)
Partnership
Radar Ventures GP
Limited as general $1,500,000 Converted into
partner of Radar 6/11/2024 face value, 731,707 ordinary
Ventures Limited in aggregate. shares on IPO
Partnership
Radar Ventures GP
Limited as general $7,000,000 Converted into
partner of Radar 3/12/2024 face value, 3,156,087 ordinary
Ventures Limited in aggregate shares on IPO
Partnership
$2.878 per
Radar Ventures 2,083,333 ordinary
30/06/2025 ordinary
Limited Partnership shares
share
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6. Associates

The reasons the persons named in paragraph 3 above are associates of the substantial holder are as follows:

Name and ACN/ARSN (if applicable)	Nature of association
Radar Ventures GP Limited	General Partner of Radar Ventures Limited Partnership
Radar Ventures Pty Ltd	Limited Partner of Radar Ventures Limited Partnership.
Daniel	Sole shareholder of Radar Ventures Pty Ltd
0to60 Investment Trust	0to60 Nominee Limited is bare trustee for the 0to60 Investment Trust. 0to60 Nominee is a Limited Partner of Radar Ventures Limited Partnership.

7. Addresses

The addresses of persons named in this form are as follows:

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Name Address
Radar Ventures Limited C/O MoranLaw Limited, Level 1, 40 Lady Elizabeth Lane,
Partnership Wellington 6011, New Zealand.
C/O MoranLaw Limited, Level 1, 40 Lady Elizabeth Lane,
Radar Ventures GP Limited
Wellington 6011, New Zealand.
Radar Ventures Pty Ltd C/O Krigsman Partners, suite 502, level 5, 140 Bourke
Street, Melbourne, Victoria 3000.
C/O MoranLaw Limited, Level 1, 40 Lady Elizabeth Lane,
Daniel Wellington 6011, New Zealand.
C/O MoranLaw Limited, Level 1, 40 Lady Elizabeth Lane,
0to60 Investment Trust
Wellington 6011, New Zealand.
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Signature

ure
print name sign here		capacity Director of Radar Ventures GP Limited
		date 01/07/2025

DIRECTIONS

603 Page 4 of 4 15 July 2001

• (1) If there are a number of substantial holders with similar or related relevant interests (eg. a corporation and its related corporations, or the manager and trustee of an equity trust), the names could be included in an annexure to the form. If the relevant interests of a group of persons are essentially similar, they may be referred to throughout the form as a specifically named group if the membership of each group, with the names and addresses of members is clearly set out in paragraph 7 of the form.

• (2) See the definition of "associate" in section 9 of the Corporations Act 2001.

• (3) See the definition of "relevant interest" in sections 608 and 671B(7) of the Corporations Act 2001.

• (4) The voting shares of a company constitute one class unless divided into separate classes.

• (5) The total number of votes attached to all the voting shares in the company or voting interests in the scheme (if any) that the person or an associate has a relevant interest in.

• (6) The person's votes divided by the total votes in the body corporate or scheme multiplied by 100.

• (7) Include details of:

• (a) any relevant agreement or other circumstances by which the relevant interest was acquired. If subsection 671B(4) applies, a copy of any document setting out the terms of any relevant agreement, and a statement by the person giving full and accurate details of any contract, scheme or arrangement, must accompany this form, together with a written statement certifying this contract, scheme or arrangement; and

• (b) any qualification of the power of a person to exercise, control the exercise of, or influence the exercise of, the voting powers or disposal of the securities to which the relevant interest relates (indicating clearly the particular securities to which the qualification applies).

• See the definition of "relevant agreement" in section 9 of the Corporations Act 2001.

• (8) If the substantial holder is unable to determine the identity of the person ( eg. if the relevant interest arises because of an option) write "unknown".

• (9) Details of the consideration must include any and all benefits, money and other, that any person from whom a relevant interest was acquired has, or may, become entitled to receive in relation to that acquisition. Details must be included even if the benefit is conditional on the happening or not of a contingency. Details must be included of any benefit paid on behalf of the substantial holder or its associate in relation to the acquisitions, even if they are not paid directly to the person from whom the relevant interest was acquired.