Macmahon Holdings Limited announced changes to its Board of Directors (Board). After six years of valuable service, Non-Executive Directors Mr. Alex Ramlie and Mr. Arief Sidarto will step down from the Board effective 13 July 2023 to concentrate on commitments related to the initial public offering and listing of PT Amman Mineral Internasional on the Indonesia Stock Exchange. Mr. Ramlie and Mr. Sidarto are Executives of AMI, the parent company of PT Amman Mineral Nusa Tenggara, Macmahon's largest shareholder, and were appointed as nominee Directors to the Board on 12 July 2017 following shareholder approval of the transaction which saw AMNT acquire its strategic share in Macmahon.

Details of the Transaction can be found in the Company's announcement `Notice of Extraordinary General Meeting/Proxy Form' released 13 June 2017. With the departures of Mr. Ramlie and Mr. Sidarto, AMNT proposed Mr. David Gibbs as its nominee Director pursuant to its rights to nominate up to two persons to be appointed as Directors of the Company under the Alliance Agreement between the Company, AMNT and AMNT's controllers (see the Company's announcement `Binding Documentation Signed for AMNT Transaction' released 8 May 2017). The Board considers Mr. Gibbs to be a suitable nominee and has resolved to appoint Mr. Gibbs effective 13 July 2023.

Mr. Gibbs is a Director at AMNT and has 40 years of international experience in large-scale mining operations with copper and gold, diamonds, uranium, coal (thermal and coke), talc andnickel laterite resources. His experience includes both underground and open pit mining, across South Africa, Namibia, Papua New Guinea, Australia, Thailand, and Indonesia. He holds a Bachelor of Science (Hons) degree in Mining Engineering, a Mine Manager Certificate First Class for Western Australia, and a Mine Manager Certificate from South Africa.

Mr. Gibbs is also a Fellow of The Royal School of Mines (ARSM) and a Chartered Engineer (C Eng). The Board will now consist of six Directors, reduced from seven, with AMNT choosing to appoint only one nominee Director at this time, while reserving all rights to appoint an additional nominee director at a later date.