Announcement PDF Appendix 4G Key to Disclosures Corporate Governance Council Principles and Recommendations Appendix 4G — Pinnacle Minerals Limited Page 1 Rules 4.7.3 and 4.10.3 Appendix 4G Key to Disclosures Corporate Governance Council Principles and Recommendations Name of entity ABN / ARBN Financial year ended: Pinnacle Minerals Limited 52 655 033 677 30 June 2026 Our corporate governance statement for the period above can be found at: ☒ These pages of our annual report: pages 45 to 50 of our annual report for the year ended 30 June 2026 ☐ This URL on our website: ______________________________________________ The corporate governance statement is accurate and up to date as at 30 September 2026 and has been approved by the board. The annexure includes a key to where our corporate governance disclosures can be located. Date: 30 September 2026 Name of authorised officer authorising lodgement: Jay Stephenson, Company Secretary Notes 1 Listing Rule 4.10.3 requires an entity included in the official list as an ASX Listing to include in its annual report either a corporate governance statement meeting the requirements of that rule, or the URL of the page on its website where that statement is located. 2 The corporate governance statement must disclose the extent to which the entity has followed the recommendations set by the ASX Corporate Governance Council during the reporting period. Any recommendation not followed for any part of the period must be identified, together with the period during which it was not followed, the reasons for not following it and any alternative governance practices adopted in its place. 3 Listing Rule 4.7.3 requires a completed Appendix 4G to be lodged with ASX at the same time as the annual report. The Appendix 4G is a key to where the entity's governance disclosures are located and a verification tool; it is separate from, and not a substitute for, the corporate governance statement. 4 A box in the second column is ticked only where the recommendation has been followed in full for the whole of the period above. Where a recommendation carries a disclosure obligation, the location of that disclosure is inserted beneath the tick. 5 Where a recommendation has not been followed in full for the whole of the period, a box in the third column is ticked and the reasons are given in the corporate governance statement. Appendix 4G Key to Disclosures Corporate Governance Council Principles and Recommendations Appendix 4G — Pinnacle Minerals Limited Page 2 ANNEXURE — KEY TO CORPORATE GOVERNANCE DISCLOSURES Corporate Governance Council recommendation Where a box below is ticked, we have followed the recommendation in full for the whole of the period above. We have disclosed this in our corporate governance statement: Where a box below is ticked, we have NOT followed the recommendation in full for the whole of the period above. Our reasons for not doing so are: PRINCIPLE 1 — LAY SOLID FOUNDATIONS FOR MANAGEMENT AND OVERSIGHT 1.1 A listed entity should have and disclose a board charter setting out: (a) the respective roles and responsibilities of its board and management; and (b) those matters expressly reserved to the board and those delegated to management. ☒ and we have disclosed a copy of our board charter in our Corporate Governance Plan at www.pinnacleminerals.com.au ☐ set out in our corporate governance statement ☐ we are an externally managed entity and this recommendation is therefore not applicable 1.2 A listed entity should: (a) undertake appropriate checks before appointing a director or senior executive or putting someone forward for election as a director; and (b) provide security holders with all material information in its possession relevant to a decision on whether or not to elect or re-elect a director. ☒ ☐ set out in our corporate governance statement ☐ we are an externally managed entity and this recommendation is therefore not applicable 1.3 A listed entity should have a written agreement with each director and senior executive setting out the terms of their appointment. ☒ ☐ set out in our corporate governance statement ☐ we are an externally managed entity and this recommendation is therefore not applicable 1.4 The company secretary of a listed entity should be accountable directly to the board, through the chair, on all matters to do with the proper functioning of the board. ☒ ☐ set out in our corporate governance statement ☐ we are an externally managed entity and this recommendation is therefore not applicable 1.5 A listed entity should: (a) have and disclose a diversity policy; (b) through its board or a committee of the board set measurable objectives for achieving gender diversity in the composition of its board, senior executives and workforce generally; and (c) disclose in relation to each reporting period the measurable objectives set, progress towards them and the respective proportions of men and women on the board, in senior executive positions and across the whole workforce. ☐ ☒ set out in our corporate governance statement. We have and have disclosed a diversity policy in our Corporate Governance Plan at www.pinnacleminerals.com.au, but the board has not set measurable objectives for achieving gender diversity, having regard to the size and stage of development of the Company. ☐ we are an externally managed entity and this recommendation is therefore not applicable 1.6 A listed entity should: (a) have and disclose a process for periodically evaluating the performance of the board, its committees and individual directors; and (b) disclose for each reporting period whether a performance evaluation was undertaken in accordance with that process. ☒ and we have disclosed the evaluation process referred to in paragraph (a) in our Corporate Governance Plan at www.pinnacleminerals.com.au and whether a performance evaluation was undertaken for the reporting period in our corporate governance statement ☐ set out in our corporate governance statement ☐ we are an externally managed entity and this recommendation is therefore not applicable 1.7 A listed entity should: (a) have and disclose a process for periodically evaluating the performance of its senior executives; and (b) disclose for each reporting period whether a performance evaluation was undertaken in accordance with that process. ☒ and we have disclosed the evaluation process referred to in paragraph (a) in our Corporate Governance Plan at www.pinnacleminerals.com.au and whether a performance evaluation was undertaken for the reporting period in our corporate governance statement ☐ set out in our corporate governance statement ☐ we are an externally managed entity and this recommendation is therefore not applicable Appendix 4G Key to Disclosures Corporate Governance Council Principles and Recommendations Appendix 4G — Pinnacle Minerals Limited Page 3 Corporate Governance Council recommendation Where a box below is ticked, we have followed the recommendation in full for the whole of the period above. We have disclosed this in our corporate governance statement: Where a box below is ticked, we have NOT followed the recommendation in full for the whole of the period above. Our reasons for not doing so are: PRINCIPLE 2 — STRUCTURE THE BOARD TO BE EFFECTIVE AND ADD VALUE 2.1 The board of a listed entity should: (a) have a nomination committee which has at least three members, a majority of whom are independent directors, and is chaired by an independent director, and disclose the charter of the committee, its members and, as at the end of each reporting period, the number of meetings and individual attendances; or (b) if it does not have a nomination committee, disclose that fact and the processes it employs to address board succession issues and to ensure that the board has the appropriate balance of skills, knowledge, experience, independence and diversity. ☒ [paragraph (b) applies] and we have disclosed the fact that we do not have a nomination committee and the processes we employ in our corporate governance statement and a copy of the Nomination Committee Charter in our Corporate Governance Plan at www.pinnacleminerals.com.au ☐ set out in our corporate governance statement ☐ we are an externally managed entity and this recommendation is therefore not applicable 2.2 A listed entity should have and disclose a board skills matrix setting out the mix of skills and diversity that the board currently has or is looking to achieve in its membership. ☒ and we have disclosed our board skills matrix in our corporate governance statement ☐ set out in our corporate governance statement ☐ we are an externally managed entity and this recommendation is therefore not applicable 2.3 A listed entity should disclose: (a) the names of the directors considered by the board to be independent directors; (b) any interest, position, association or relationship of the type described in Box 2.3 that the board considers does not compromise independence, and why; and (c) the length of service of each director. ☒ and we have disclosed the names of the directors considered to be independent, and the length of service of each director, in our corporate governance statement and in the Directors' report in our 2026 annual report ☐ set out in our corporate governance statement ☐ we are an externally managed entity and this recommendation is therefore not applicable 2.4 A majority of the board of a listed entity should be independent directors. ☒ ☐ set out in our corporate governance statement ☐ we are an externally managed entity and this recommendation is therefore not applicable 2.5 The chair of the board of a listed entity should be an independent director and, in particular, should not be the same person as the CEO of the entity. ☒ ☐ set out in our corporate governance statement ☐ we are an externally managed entity and this recommendation is therefore not applicable 2.6 A listed entity should have a program for inducting new directors and for periodically reviewing whether there is a need for existing directors to undertake professional development to maintain the skills and knowledge needed to perform their role effectively. ☒ ☐ set out in our corporate governance statement ☐ we are an externally managed entity and this recommendation is therefore not applicable PRINCIPLE 3 — INSTIL A CULTURE OF ACTING LAWFULLY, ETHICALLY AND RESPONSIBLY 3.1 A listed entity should articulate and disclose its values. ☒ and we have disclosed our values in our Corporate Governance Plan at www.pinnacleminerals.com.au ☐ set out in our corporate governance statement 3.2 A listed entity should: (a) have and disclose a code of conduct for its directors, senior executives and employees; and (b) ensure that the board or a committee of the board is informed of any material breaches of that code. ☒ and we have disclosed our code of conduct in our Corporate Governance Plan at www.pinnacleminerals.com.au ☐ set out in our corporate governance statement 3.3 A listed entity should: (a) have and disclose a whistleblower policy; and (b) ensure that the board or a committee of the board is informed of any material incidents reported under that policy. ☒ and we have disclosed our whistleblower policy in our Corporate Governance Plan at www.pinnacleminerals.com.au ☐ set out in our corporate governance statement Appendix 4G Key to Disclosures Corporate Governance Council Principles and Recommendations Appendix 4G — Pinnacle Minerals Limited Page 4 Corporate Governance Council recommendation Where a box below is ticked, we have followed the recommendation in full for the whole of the period above. We have disclosed this in our corporate governance statement: Where a box below is ticked, we have NOT followed the recommendation in full for the whole of the period above. Our reasons for not doing so are: 3.4 A listed entity should: (a) have and disclose an anti-bribery and corruption policy; and (b) ensure that the board or a committee of the board is informed of any material breaches of that policy. ☒ and we have disclosed our anti-bribery and corruption policy in our Corporate Governance Plan at www.pinnacleminerals.com.au ☐ set out in our corporate governance statement PRINCIPLE 4 — SAFEGUARD THE INTEGRITY OF CORPORATE REPORTS 4.1 The board of a listed entity should: (a) have an audit committee which has at least three members, all of whom are non-executive directors and a majority of whom are independent directors, and is chaired by an independent director who is not the chair of the board, and disclose the charter of the committee, the relevant qualifications and experience of its members and, in relation to each reporting period, the number of meetings and individual attendances; or (b) if it does not have an audit committee, disclose that fact and the processes it employs that independently verify and safeguard the integrity of its corporate reporting, including the processes for the appointment and removal of the external auditor and the rotation of the audit engagement partner. ☒ [paragraph (b) applies] and we have disclosed the fact that we do not have an audit committee and the processes we employ in our corporate governance statement and a copy of the Audit and Risk Committee Charter in our Corporate Governance Plan at www.pinnacleminerals.com.au ☐ set out in our corporate governance statement 4.2 The board of a listed entity should, before it approves the entity's financial statements for a financial period, receive from its CEO and CFO a declaration that, in their opinion, the financial records have been properly maintained and the financial statements comply with the appropriate accounting standards and give a true and fair view, and that the opinion has been formed on the basis of a sound system of risk management and internal control which is operating effectively. ☒ ☐ set out in our corporate governance statement 4.3 A listed entity should disclose its process to verify the integrity of any periodic corporate report it releases to the market that is not audited or reviewed by an external auditor. ☒ and we have disclosed our verification process in our corporate governance statement and in our Corporate Governance Plan at www.pinnacleminerals.com.au ☐ set out in our corporate governance statement PRINCIPLE 5 — MAKE TIMELY AND BALANCED DISCLOSURE 5.1 A listed entity should have and disclose a written policy for complying with its continuous disclosure obligations under listing rule 3.1. ☒ and we have disclosed our continuous disclosure policy in our Corporate Governance Plan at www.pinnacleminerals.com.au ☐ set out in our corporate governance statement 5.2 A listed entity should ensure that its board receives copies of all material market announcements promptly after they have been made. ☒ ☐ set out in our corporate governance statement 5.3 A listed entity that gives a new and substantive investor or analyst presentation should release a copy of the presentation materials on the ASX Market Announcements Platform ahead of the presentation. ☒ ☐ set out in our corporate governance statement PRINCIPLE 6 — RESPECT THE RIGHTS OF SECURITY HOLDERS 6.1 A listed entity should provide information about itself and its governance to investors via its website. ☒ and we have disclosed information about us and our governance at www.pinnacleminerals.com.au ☐ set out in our corporate governance statement 6.2 A listed entity should have an investor relations program that facilitates effective two-way communication with investors. ☒ ☐ set out in our corporate governance statement Appendix 4G Key to Disclosures Corporate Governance Council Principles and Recommendations Appendix 4G — Pinnacle Minerals Limited Page 5 Corporate Governance Council recommendation Where a box below is ticked, we have followed the recommendation in full for the whole of the period above. We have disclosed this in our corporate governance statement: Where a box below is ticked, we have NOT followed the recommendation in full for the whole of the period above. Our reasons for not doing so are: 6.3 A listed entity should disclose how it facilitates and encourages participation at meetings of security holders. ☒ and we have disclosed how we facilitate and encourage participation in our corporate governance statement and in our Corporate Governance Plan at www.pinnacleminerals.com.au ☐ set out in our corporate governance statement 6.4 A listed entity should ensure that all substantive resolutions at a meeting of security holders are decided by a poll rather than by a show of hands. ☒ ☐ set out in our corporate governance statement 6.5 A listed entity should give security holders the option to receive communications from, and send communications to, the entity and its security registry electronically. ☒ security holders may elect to receive and send communications electronically through our share registry, Automic Registry Services, as disclosed in our corporate governance statement ☐ set out in our corporate governance statement PRINCIPLE 7 — RECOGNISE AND MANAGE RISK 7.1 The board of a listed entity should: (a) have a committee or committees to oversee risk, each of which has at least three members, a majority of whom are independent directors, and is chaired by an independent director, and disclose the charter of the committee, its members and, as at the end of each reporting period, the number of meetings and individual attendances; or (b) if it does not have a risk committee or committees that satisfy (a), disclose that fact and the processes it employs for overseeing the entity's risk management framework. ☒ [paragraph (b) applies] and we have disclosed the fact that we do not have a risk committee and the processes we employ in our corporate governance statement and a copy of the Audit and Risk Committee Charter in our Corporate Governance Plan at www.pinnacleminerals.com.au ☐ set out in our corporate governance statement 7.2 The board or a committee of the board should: (a) review the entity's risk management framework at least annually to satisfy itself that it continues to be sound and that the entity is operating with due regard to the risk appetite set by the board; and (b) disclose, in relation to each reporting period, whether such a review has taken place. ☒ and we have disclosed that a review took place during the reporting period in our corporate governance statement ☐ set out in our corporate governance statement 7.3 A listed entity should disclose: (a) if it has an internal audit function, how the function is structured and what role it performs; or (b) if it does not have an internal audit function, that fact and the processes it employs for evaluating and continually improving the effectiveness of its governance, risk management and internal control processes. ☒ [paragraph (b) applies] and we have disclosed the fact that we do not have an internal audit function and the processes we employ in our corporate governance statement ☐ set out in our corporate governance statement 7.4 A listed entity should disclose whether it has any material exposure to environmental or social risks and, if it does, how it manages or intends to manage those risks. ☒ and we have disclosed this in our corporate governance statement, in the Directors' report and in the financial statements in our 2026 annual report ☐ set out in our corporate governance statement PRINCIPLE 8 — REMUNERATE FAIRLY AND RESPONSIBLY 8.1 The board of a listed entity should: (a) have a remuneration committee which has at least three members, a majority of whom are independent directors, and is chaired by an independent director, and disclose the charter of the committee, its members and, as at the end of each reporting period, the number of meetings and individual attendances; or (b) if it does not have a remuneration committee, disclose that fact and the processes it employs for setting the level and composition of remuneration for directors and senior executives and ensuring that such remuneration is appropriate and not excessive. ☒ [paragraph (b) applies] and we have disclosed the fact that we do not have a remuneration committee and the processes we employ in our corporate governance statement and a copy of the Remuneration Committee Charter in our Corporate Governance Plan at www.pinnacleminerals.com.au ☐ set out in our corporate governance statement ☐ we are an externally managed entity and this recommendation is therefore not applicable Appendix 4G Key to Disclosures Corporate Governance Council Principles and Recommendations Appendix 4G — Pinnacle Minerals Limited Page 6 Corporate Governance Council recommendation Where a box below is ticked, we have followed the recommendation in full for the whole of the period above. We have disclosed this in our corporate governance statement: Where a box below is ticked, we have NOT followed the recommendation in full for the whole of the period above. Our reasons for not doing so are: 8.2 A listed entity should separately disclose its policies and practices regarding the remuneration of non-executive directors and the remuneration of executive directors and other senior executives. ☒ and we have disclosed these separately in the Remuneration Report in our 2026 annual report and in our corporate governance statement ☐ set out in our corporate governance statement ☐ we are an externally managed entity and this recommendation is therefore not applicable 8.3 A listed entity which has an equity-based remuneration scheme should: (a) have a policy on whether participants are permitted to enter into transactions (whether through the use of derivatives or otherwise) which limit the economic risk of participating in the scheme; and (b) disclose that policy or a summary of it. ☒ and we have disclosed our policy on this issue in the Securities Trading Policy in our Corporate Governance Plan at www.pinnacleminerals.com.au ☐ set out in our corporate governance statement ☐ we are an externally managed entity and this recommendation is therefore not applicable