Mengutip Investopedia, Head of Agreement merupakan perjanjian dasar terkait kerja sama maupun transaksi. Head of Agreement dikenal pula dengan istilah heads of terms atau letter of lawsuit. Inalum, Rio Tinto`s stake in PT-FI, which will expand PT-FI`s asset base, in exchange for a 40% interest in PT-FI, in accordance with agreements that allow FCX and current PT-FI shareholders to maintain the economic viability of the revenue and cost-sharing agreements under the joint venture. After the closing of the transaction, Inalum s. 51 per cent of PT-FI (subject to an agreement between shareholders to re-issue the joint venture`s economy) and fcX owners will be approximately 49 per cent. Richard C. Adkerson, Vice-President, President and Chief Executive Officer, said: “This agreement is an important step towards establishing a new long-term partnership with the Republic of Indonesia to make PT Freeport Indonesia`s activities more stable in the long term. This transaction will enable the government to achieve its ownership objectives in order to maintain long-term value for FCX shareholders and the Indonesian people until 2041. We thank Rio Tinto for its support during more than 20 years of successful partnership. We look forward to a mutually positive and beneficial partnership with Inalum, which will continue to bring significant benefits to the citizens of Papua; Republic of Indonesia; and to get attractive returns for our shareholders. Ada tiga kesepakatan dari HoA tersebut, pertama adalah perjanjian pengikatan jual beli atau sales and purchase agreement (SPA), selanjutnya adalah shareholders agreement atau seperti perjanjian kesepakatan antara pemegang saham dengan pemegang saham baru. The transaction, which is expected to close in the second half of 2018, is subject to the negotiation and documentation of final agreements, including purchase and sale agreements, the extension and stability of PT-FI`s long-term mineral rights until 2041, in an acceptable form for FCX and Inalum, a shareholder agreement between FCX and Inalum , which provides for the continuity of MANAGEMENT of PTX for THE PTX business. , and solving environmental regulatory problems that are satisfactory to the Indonesian government, FCX and Inalum.