Announcement PDF 1 March 2024 ASX Limited Level 40, Central Park 152-158 St George’s Terrace Perth WA 6000 By Email: tradinghaltsperth@asx.com.au Dear Sir/Madam Response to Price – Query In response to your correspondence dated 28 February 2024 regarding the increase in price and volume of Horizon Minerals Limited (HRZ or Horizon) traded securities, please see the following responses: 1. Is HRZ aware of any information concerning it that has not been announced to the market which, if known by some in the market, could explain the recent trading in its securities? Horizon is not aware of any information concerning it that has not been announced to the market which, if known by some in the market, could explain the recent trading in Horizon’s securities. 2. If the answer to question 1 is “yes”. (a) Is HRZ relying on Listing Rule 3.1A not to announce that information under Listing Rule 3.1? Please note that the recent trading in HRZ’s securities would suggest to ASX that such information may have ceased to be confidential and therefore HRZ may no longer be able to rely on Listing Rule 3.1A. Accordingly, if the answer to this question is “yes”, you need to contact us immediately to discuss the situation. Not applicable. (b) Can an announcement be made immediately? Please note, if the answer to this question is “no”, you need to contact us immediately to discuss requesting a trading halt (see below). Not applicable. (c) If an announcement cannot be made immediately, why not and when is it expected that an announcement will be made? Not applicable. 3. If the answer to question 1 is “no”, is there any other explanation that HRZ may have for the recent trading in its securities? 163 Stirling Hwy Nedlands WA 6009 PO Box 1104 Nedlands WA 6909 T: +61 8 9386 9534 F: +61 8 9389 1597 E: info@horizonminerals.com.au horizonminerals.com.au ACN 007 761 186 ABN 88 007 761 186 Horizon is not aware of any other explanation for the recent trading in its securities. However, the Board of Horizon notes the following which may be contributing to the increase in Horizon’s share price: • • As announced on 13 February 2024, Horizon has entered into a Scheme Implementation Deed with Greenstone Resources Limited. If implemented, the merger would bring together complementary assets with both near-term small mining opportunities and larger baseload deposits with potential to develop into long-life cornerstone operations. Horizon has become aware that, on 28 February 2024 an analyst report was released on Horizon. As set out in further detail in Horizon’s announcement titled “Lithium Exploration Update” dated 1 March 2024, Horizon has carried out further preliminary lithium exploration work on the Bridgetown-Greenbrushes and Yarmany East projects. These exploration results do not relate to a material mining project and the Horizon Board does not consider that these exploration results explain, or have contributed to, the recent trading in its securities. 4. Please confirm that HRZ is complying with the Listing Rules and, in particular, Listing Rule 3.1. The Company confirms that it is in compliance with the Listing Rules, and in particular Listing Rule 3.1. 5. Please confirm that HRZ’s responses to the questions above have been authorised and approved under its published continuous disclosure policy or otherwise by its board or an officer of HRZ with delegated authority from the board to respond to ASX on disclosure matters. The Company confirms that the above responses have been authorised and approved in accordance with its published continuous disclosure policy and by the Horizon Board. Yours sincerely ______________________ Julian Tambyrajah Chief Financial Officer & Company Secretary Horizon Minerals Limited 163 Stirling Hwy Nedlands WA 6009 PO Box 1104 Nedlands WA 6909 T: +61 8 9386 9534 F: +61 8 9389 1597 E: info@horizonminerals.com.au horizonminerals.com.au ACN 007 761 186 ABN 88 007 761 186 28 February 2024 Mr Julian Tambyrajah Company Secretary Horizon Minerals Limited By email Dear Mr Tambyrajah Horizon Minerals Limited (‘HRZ’): Price - Query ASX refers to the following: A. The change in the price of HRZ’s securities from an intraday low of $0.032 to an intraday high of $0.043 today. B. The significant increase in the volume of HRZ’s securities traded today. Request for information In light of this, ASX asks HRZ to respond separately to each of the following questions and requests for information: 1. Is HRZ aware of any information concerning it that has not been announced to the market which, if known by some in the market, could explain the recent trading in its securities? 2. If the answer to question 1 is “yes”. (a) Is HRZ relying on Listing Rule 3.1A not to announce that information under Listing Rule 3.1? Please note that the recent trading in HRZ’s securities would suggest to ASX that such information may have ceased to be confidential and therefore HRZ may no longer be able to rely on Listing Rule 3.1A. Accordingly, if the answer to this question is “yes”, you need to contact us immediately to discuss the situation. (b) Can an announcement be made immediately? Please note, if the answer to this question is “no”, you need to contact us immediately to discuss requesting a trading halt (see below). (c) If an announcement cannot be made immediately, why not and when is it expected that an announcement will be made? 3. If the answer to question 1 is “no”, is there any other explanation that HRZ may have for the recent trading in its securities? 4. Please confirm that HRZ is complying with the Listing Rules and, in particular, Listing Rule 3.1. 5. Please confirm that HRZ’s responses to the questions above have been authorised and approved under its published continuous disclosure policy or otherwise by its board or an officer of HRZ with delegated authority from the board to respond to ASX on disclosure matters. When and where to send your response This request is made under Listing Rule 18.7. Your response is required as soon as reasonably possible and, in any event, by no later than 6.30 AM AWST Thursday, 29 February 2024. You should note that if the information requested by this letter is information required to be given to ASX under Listing Rule 3.1 and it does not fall within the exceptions mentioned in Listing Rule 3.1A, HRZ’s obligation is to disclose the ASX Limited [[Listings]] ASX Customer Service Centre 131 279 | asx.com.au information ‘immediately’. This may require the information to be disclosed before the deadline set out in the previous paragraph and may require HRZ to request a trading halt immediately. Your response should be sent to me by e-mail at ListingsCompliancePerth@asx.com.au. It should not be sent directly to the ASX Market Announcements Office. This is to allow me to review your response to confirm that it is in a form appropriate for release to the market, before it is published on the ASX Market Announcements Platform. Trading halt If you are unable to respond to this letter by the time specified above, or if the answer to question 1 is “yes” and an announcement cannot be made immediately, you should discuss with us whether it is appropriate to request a trading halt in HRZ’s securities under Listing Rule 17.1. If you wish a trading halt, you must tell us:  the reasons for the trading halt;  how long you want the trading halt to last;  the event you expect to happen that will end the trading halt;  that you are not aware of any reason why the trading halt should not be granted; and  any other information necessary to inform the market about the trading halt, or that we ask for. We require the request for a trading halt to be in writing. The trading halt cannot extend past the commencement of normal trading on the second day after the day on which it is granted. You can find further information about trading halts in Guidance Note 16 Trading Halts & Voluntary Suspensions. Suspension If you are unable to respond to this letter by the time specified above, ASX will likely suspend trading in HRZ’s securities under Listing Rule 17.3. Listing Rules 3.1 and 3.1A In responding to this letter, you should have regard to HRZ’s obligations under Listing Rules 3.1 and 3.1A and also to Guidance Note 8 Continuous Disclosure: Listing Rules 3.1 – 3.1B. It should be noted that HRZ’s obligation to disclose information under Listing Rule 3.1 is not confined to, nor is it necessarily satisfied by, answering the questions set out in this letter. Release of correspondence between ASX and entity ASX reserves the right to release all or any part of this letter, your reply and any other related correspondence between us to the market under Listing Rule 18.7A. Yours sincerely ASX Compliance 2/2 ASX Customer Service Centre 131 279 | asx.com.au