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Tujuh Bukit Copper Project

The Tujuh Bukit Copper Project workers drilled and took rock samples for analysis. (Photo: Anggung Setiawan/BSI)

The Tujuh Bukit Copper Project is one of the world’s largest pre-production copper projects, located beneath the operating TB Gold Mine. Merdeka owns a 100% interest in the project.

TB Copper Project contains mineral resources of 1.71 billion tonnes at a grade of 0.47% copper and 0.50 g/t gold, containing approximately 8.1 million tonnes of copper and 27.4 million ounces of gold (including an indicated resource of 443 million tonnes at a grade of 0.60% copper and 0.66 g/t gold).

Since 2018, Merdeka has invested US$176 million on detailed feasibility work to advance the project, including a 1,890-metre exploration decline, resource definition drilling, geological modelling, technical studies, and a pre-feasibility study (PFS), completed in May 2023.

The PFS confirms attractive project economics for developing a globally significant, long-life, underground mine adopting a phased approach. At full production, TB Copper Project will process 24Mtpa of ore to produce more than 110,000 tonnes of copper and 350,000 ounces of gold per annum for a mine life of more than 30 years. For further details on the PFS, please refer to this link.

Recent drilling related to the extension of the TB Gold Mine has identified copper-gold mineralisation extending from below the TB Gold Mine open pits to the underground indicated resource. The potential mining of this copper-gold mineralisation from an open pit is a low-risk, brownfield expansion of the existing mining operations. It would potentially increase, accelerate and de-risk the initial production profile of the TB Copper Project. Preliminary drilling of this potential open-pit copper-gold resource and other high-priority open-pit prospects within the concession area is ongoing.

Following the completion of the PFS and the discovery of a potential open pit copper-gold resource, Merdeka is focusing on project enhancement work, before commencing with a bankable feasibility study. The optimisation work includes the potential for improved metallurgical recoveries, higher underground production throughput and open pit mining of additional copper ore.

Underground resource definition drilling has progressed well in 2023, with 26,290 metres completed as of the end of September 2023. Drilling will continue throughout the rest of the year with a further 10,375 metres of resource definition drilling planned. The next mineral resource update, targeted for Q1 2024, is expected to deliver significant additional indicated resource tonnage.

The Tujuh Bukit Copper Project is located beneath the surface of the Tujuh Bukit Gold Mine in Banyuwangi, East Java; about 65 km to the southeast of Banyuwangi City, precisely in Sumberagung Village, Pesanggaran District, Banyuwangi Regency, East Java Province, Indonesia.

Merdeka share ownership: 99.89%

Proposed mining method: Underground sub-level cave/block cave development

Mineralization type: Copper-gold porphyry mineralization

Group Mineral Resources: as of 31 December 2022

Activities Report Q4 2023

Investor Presentation

2018

Prospectus

Exploration Report

2024

Press Release

2022

Pani December-2022 Drill Results2.2 MB31 December 2022Press Release: Merdeka Announces 9M 2022 Results211.6 KB16 December 2022Tujuh Bukit Copper Project Update1.1 MB17 October 2022Wetar Oct 2022 Exploration Results Release1.8 MB5 October 2022Merdeka Battery Materials Senior Leadership Appointments221.6 KB21 September 2022Press Release: Merdeka Announces 1H 2022 Results202.4 KB12 September 2022New Drilling Results from Tujuh Bukit Gold Mine Extend Known Mineralisation - 1 September 20221.5 MB1 September 2022Pani August 2022 Drill Results1.1 MB2 August 2022TB CP June 2022 Results Release2.0 MB4 July 2022Press Release: Merdeka Completes Pre-emptive Rights Issue – 19 May 2022159.9 KB19 May 2022Press Release: Merdeka Completes Investment in New RKEF Smelter – 19 May 2022160.3 KB19 May 2022Press Release: Merdeka Q1 2022 Results Recorded all-time high quarterly EBITDA – 17 May 2022196.4 KB17 May 2022Pani April 2022 Drill Results2.2 MB26 April 2022Press Release: Major Nickel Acquisition – 28 March 2022278.7 KB28 March 2022Press Release: PT Merdeka Copper Gold Tbk Successfully Issues a 3 Trillon Rupiah Bond – 15 March 2022141.9 KB15 March 2022Press Release: PT Merdeka Copper Gold Tbk Moves to 70% Economic Interest in the Pani Gold Project – 4 March 2022771.8 KB4 March 2022Siaran Pers: Hasil PT Merdeka Copper Gold Tbk 2021 Melampaui Target – 23 Februari 2022661.4 KB23 February 2022Press Release: Further Strong Drilling Results from Tujuh Bukit Copper Project – 11 February 20222.0 MB11 February 2022Press Release: Further Strong Drilling Results from the Wetar Copper Project, Partolang Barat Deposit – 2 February 20222.2 MB2 February 2022

2021

Press Release: Acquire Majority Interest in Pani Gold Project – 30 December 2021271.2 KB30 December 2021Press Release: Strategic Partnership with BRUNP CATL – 21 December 2021178.6 KB21 December 2021Siaran Pers: Hasil 9M 2021 – Peningkatan Produksi Peningkatan Keuangan – 30 November 2021630.2 KB30 November 2021Siaran Pers: Hasil H1 2021 – Peningkatan Produksi Peningkatan Keuangan – 25 Agustus 2021195.8 KB25 August 2021Press Release: Further Strong Drilling Results from Tujuh Bukit Copper Project – 4 August 20212.0 MB4 August 2021Press Release: Latest Drilling from Tujuh Bukit Copper Project – 14 June 20212.0 MB14 June 2021Press Release: Moves to 100% Ownership of the Wetar Copper Mine – 2 June 2021728.4 KB2 June 2021Siaran Pers: Hasil Q1 2021 – Posisi Keuangan Kuat dan Sehat – 19 Mei 2021628.4 KB19 May 2021Announcement: Update on Heap Leach Pad Incident and Reinstatement at Tujuh Bukit Gold Mine – 28 April 2021676.5 KB28 April 2021Press Release: Further Strong Drilling Results from Tujuh Bukit Copper Project – 30 March 20211.7 MB30 March 2021Siaran Pers: Perjanjian Usaha Patungan dengan Eternal Tsingshan Group Limited700.9 KB16 February 2021Tujuh Bukit Copper Drill Results Released – February 20211.9 MB3 February 2021Pemeringkatan Obligasi Berkelanjutan I Tahap I dan II Tahun 2020 – 7 Januari 2021146.1 KB8 January 2021Press Release: Continued Strong Drilling Results from Tujuh Bukit Copper Project – 3 February 20201.9 MB3 February 2020MDKA and PSAB Joint Announcement: Pani Gold Project477.0 KB6 January 2020

Information Disclosure

2022

Affiliated Transaction of the Deed of the Merger between PBJ and ABI1.5 MB20 December 2022Affiliated Transaction of Conditional Shares Subscription Agreement between BPI and MBM1.0 MB12 December 2022Affiliated Transaction of Conditional Shares Subscription Agreement between MEN and MBM1.0 MB12 December 2022Affiliated Transaction of Services Provision Agreement between MMS and GSM908.3 KB3 November 2022Affiliated Transaction of Contract of Design Engineering and Mining Construction Services between SCM and MMS991.5 KB21 October 2022Announcement of Management Changes481.3 KB28 September 2022Affiliated and Material Transaction of Capex Facility and Put Option670.5 KB2 September 2022Affiliated Transaction of Parent Support Facility Agreement between MDKA and MTI635.9 KB25 August 2022Material Transaction of Amendment and Restatement of the Bridge Facility Agreement between MDKA and MTI680.0 KB18 August 2022Material Transaction between MDKA and MBM5.8 MB2 August 2022Affiliated Transaction of Project Expansion Bridge Facility Agreement between MDKA and MTI959.1 KB1 August 2022Additional Capital Increase in HLN by BTA716.8 KB1 July 2022Affiliated Transaction of Shares' Sale and Purchase of JPI between BTA and HLN460.3 KB1 July 2022Second Amendment to the Conditional Advance of Capital Payment Agreement between the Company and BTA1.6 MB30 June 2022Amendment and/or Addition to the Disclosure of Information regarding Plan of Capital Increase without Pre-Emptive Rights Issuance321.2 KB7 June 2022First Amendment to the Conditional Advance of Capital Payment Agreement between the Company and BTA799.1 KB24 May 2022Affiliated Transaction of Loan Agreement between MDKA and PPM296.9 KB19 May 2022Proposed Buyback of the Issued Shares374.7 KB4 May 2022Proposed Capital Increase Without Pre-Emptive Rights Issuance570.6 KB4 May 2022Affiliated Transaction of Loan Agreement between MDKA and ABI1.0 MB12 April 2022Affiliated Transaction of Loan Agreement between MDKA and PBJ1.0 MB12 April 2022Material Transaction of the Conditional Shares Subscription of HLN217.1 KB28 March 2022Material Transaction of the Conditional Advance of Capital Payment MDKA and BTA195.2 KB28 March 2022Disclosure of Information on Completion of Conditional Shares Subscription Agreement1.8 MB4 March 2022Disclosure of Information on The Purchase of Partial Shares Owned by Lion Selection Asia Limited Shares in PT Pani Bersama Jaya by the Company926.6 KB4 March 2022Affiliated Transactions of Parent Support Facility Agreement between MDKA and MTI730.4 KB7 February 2022Disclosure of Information of Affiliated Transactions between MDKA and MTI (CAPEX Facility)729.5 KB7 February 2022

2018

Announcement Acquisition between PANI and Lion1.6 MB9 November 2018Disclosure of Material Information of Loan Agreement between MDKA and BSI166.0 KB5 November 2018Affiliated Transaction of Amendment I Facility Agreement between MDKA and EFDL335.0 KB5 November 2018Affiliated Transation of Loan Agreeement between BSI and MMS (2)497.3 KB5 November 2018Affiliated Transation of Loan Agreeement between BSI and MMS (1)497.3 KB5 November 2018Affiliated Transaction between MDKA and BSI557.2 KB22 October 2018Change of the composition of Board of Directors and Board of Commissioners625.1 KB24 September 2018Disclosure Information on The Affiliated Transaction Novation between MDKA, EFDL and SRTG202.9 KB2 May 2018Disclosure Information of Affiliated Transaction of Assignment of Sponsor Loan204.0 KB2 May 2018Disclosure Information on The Affiliated Transaction Novation between MDKA, EFDL and Provident202.1 KB2 May 2018Disclosure Information on The Material Transaction Put Option425.1 KB18 April 2018Disclosure Information on The Change of Business Activities154.1 KB12 April 2018The Disclosure of Additional Information in Relation to The Proposed Capital Increase with Pre-emptive Right Issuance96.6 KB12 April 2018Disclosure Information of Affiliated Transaction of Facility Agreement by EFDL191.3 KB3 April 2018The Disclosure Information to the Shareholders of PT Merdeka Copper Gold Tbk in Relation to The Proposed Capital Increase with Pre-Emptive Rights Issuance134.6 KB22 March 2018Tujuh Bukit Oxide Project Update1.3 MB27 February 2018
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