Announcement PDF 603 Page 1 of 2 Form 603 Corporations Act 2001 Section 671B Notice of initial substantial holder To Company Name/Scheme Ardiden Limited ACN/ARSN ACN 110 884 252 1. Details of substantial holder (1) Name Matthew Keegan and his associate ACN/ARSN (if applicable) The holder became a substantial holder on 04 / 12 / 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 Number of securities Person's votes Voting power Fully paid ordinary shares (Shares) 38,000,000 38,000,000 17.68% 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 Class and number of securities Matthew Keegan Relevant interest under section 608(1)(a) of the Corporations Act 2001 (Cth) (Corporations Act) as the registered holder of the Shares. 32,519,280 Shares Victoria Road Holdings Pty Ltd Relevant interest under section 608(3)(b) of the Corporations Act, by virtue of Matthew Keegan controlling Victoria Road Holdings Pty Ltd. 5,480,720 Shares 4. Details of present registered holders The persons registered as holders of the securities referred to in paragraph 3 above are as follows: Holder of relevant interest Registered holder of securities Person entitled to be registered as holder Class and number of securities Matthew Keegan Matthew Keegan Matthew Keegan 32,519,280 Shares Matthew Keegan Victoria Road Holdings Pty Ltd Victoria Road Holdings Pty Ltd 5,480,720 Shares 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 Class and number of securities Cash Non-cash Matthew Keegan 4 December 2025 Issued as consideration under the share sale agreements between the Company, Matthew Joseph Keegan and LAC Gold Limited. 32,519,280 Shares Victoria Road Holdings Pty Ltd 4 December 2025 Issued as consideration under the share sale agreements between the Company, Victoria Road Holdings and LAC Gold Limited. 3,118,286 Shares Victoria Road Holdings Pty Ltd 4 December 2025 $472,486.80 2,362,434 Shares 603 Page 2 of 2 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 Victoria Road Holdings Pty Ltd (ACN 158 232 127) Matthew Keegan is the sole director and shareholder of Victoria Road Holdings Pty Ltd. 7. Addresses The addresses of persons named in this form are as follows: Name Address Matthew Keegan Roach & Bruce Consulting Pty Ltd, Suite 7, Level 55, 66 Hunter Street, Sydney NSW 2000 Victoria Road Holdings Pty Ltd Roach & Bruce Consulting Pty Ltd, Suite 7, Level 55, 66 Hunter Street, Sydney NSW 2000 Signature Print name Matthew Joseph Keegan Capacity Director and Company Secretary Sign here Date 05/12/2025 DIRECTIONS (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.