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Tujuh Bukit Gold Mine

The Tujuh Bukit Gold Mine, managed by PT Bumi Suksesindo in Banyuwangi, East Java, Indonesia. [Photo: Candraning Dwi Sukmasari/BSI]
Operated by PT Bumi Suksesindo (BSI), the Tujuh Bukit Gold Mine is an open pit mine in Banyuwangi, East Java, which excavates mineral ores and extracts gold and silver deposits, using an efficient and environmentally friendly leaching method.

BSI operates the Tujuh Bukit Gold Mine based on the Mining Business License for Operation and Production obtained since 2012 on an area of 4,998 hectares in a production forest area in Sumberagung Village, Pesanggaran Sub-District, District of Banyuwangi, with only 992 hectares of the 4,998 hectares used by BSI for mining operations.

Commencing construction in 2014, the Tujuh Bukit Gold Mine began mining its first ore in 2016 and produced its first gold in 2017, becoming one of the largest primary gold mine in Indonesia. The Tujuh Bukit Gold Mine was designated as a National Vital Object in 2016 for the quality of its mineral resources which are recognized by the state as a strategic asset.

As part of the Merdeka group that is committed to sustainable mining, BSI protects the environment, minimizes and rehabilitates the environmental impact of its mining operations. As part of the implementation of international best practice mining standards, BSI carries out progressive reclamation – reclamation that starts immediately once one part of the land has been used – without waiting for the entire area to be mined. In addition, BSI also manages compensation land in Bondowoso, East Java and Sukabumi, West Java, covering an area of 2,038 hectares, or 54 hectares more than require. Compensation land is land that must be submitted to the government by the holder of the Borrow-to-Use Forest Area Permit (IPPKH) in a clear and clean form and has been reforested. BSI also monitors the quality of river and sea water biota and the diversity of flora and fauna.

In addition to being one of the biggest tax contributors for Banyuwangi and Indonesia, BSI fully contributes to social progress and community welfare in the area around the mine through employment, business opportunities for local entrepreneurs also community development and empowerment programs. More than 70% of BSI’s workforce comes from the Pesanggaran sub-district and District of Banyuwangi, which together produce metals and minerals that are essential for the advancement of human life.

Operational and Financial Performance
Unit2019202020211H-2022
Open Pit Mining
Ore minedMt7.46.76.54.6
Waste minedMt8.45.74.02.2
Heap Leach Production
Ore crushed and stackedMt7.45.86.34.2
Recovered metalAu oz223,042157,175124,73069,783
Financials
Cash costsUSD/oz409398611693
All-in sustaining costsUSD/oz620669860961
SalesUSD m312317218147
Operating EBITDAUSD m201176147129

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

Operated by:
PT Bumi Suksesindo

Merdeka share ownership:
BSI 99,89% (August 31, 2022)

Year of operation:
2017

Location:
Banyuwangi, East Java, Indonesia

Mining method:
Conventional open pit

Metals:
Gold and silver 

Mineralisation type:
High sulphidation epithermal

Process method:
Oxide heap leach

Recovery:
Gold 79% and silver 13%

Oxide Mineral Reserves:
0.6 million oz gold; 27 million oz silver*

Oxide Mineral Resources:
1.1 million oz gold; 6.1 million oz silver*

Workforces:
2,600 employees and contractors; 71.2% of employees from communities around the mine*

Safety:
10,981,619 man-hours without LTI (Lost Time Injury) and with zero fatality.**

Land rehabilitation:
1.77 hectares of land rehabilitated; 7,625 trees planted*

Notes:
* December 31, 2021
** December 2020 – September 2022

Investor Presentation

2018

Press Release

Information Disclosure

2022

Material Transaction between MDKA and MBM5.8 MBDisclosure of Information of Affiliated Transaction on Project Expansion Bridge Facility Agreement between MDKA and MTI959.1 KBDisclosure of Information of the Additional Capital Increase in HLN by BTA716.8 KBDisclosure of Information of Shares' Sale and Purchase Transaction of JPI between BTA and HLN460.3 KBSecond Amendment to the Conditional Advance of Capital Payment Agreement between the Company and BTA1.6 MBAmendment and/or Addition to the Disclosure of Information regarding Plan of Capital Increase without PreEmptive Rights Issuance321.2 KBFirst Amendment to the Conditional Advance of Capital Payment Agreement between the Company and BTA799.1 KBDisclosure of Information of Affiliated Transaction on Loan Agreement between MDKA and PPM296.9 KBInformation Disclosure: Affiliated and Material Transaction on Capex Facility and Put670.5 KBInformation Disclosure: Affiliated Transaction on Parent Support Facility Agreement between MDKA and MTI635.9 KBInformation Disclosure: Material Transaction on Amendment and Restatement of the Bridge Facility Agreement between MDKA and MTI680.0 KBDisclosure of Information of the Proposed Capital Increase Without Pre-Emptive Rights Issuance570.6 KBDisclosure of Information of the Proposed Buyback of the Issued Shares374.7 KBDisclosure of Information of Affiliated Transaction on Loan Agreement between MDKA and PBJ1.0 MBDisclosure of Information of Affiliated Transaction on Loan Agreement between MDKA and ABI1.0 MBDisclosure of Information of Transaction of the Conditional Advance of Capital Payment MDKA-BTA195.2 KBDisclosure of Information of Transaction of the Conditional Shares Subscription of HLN217.1 KBDisclosure of Information on The Purchase of Partial Shares Owned by Lion Selection Asia Limited Shares in PT Pani Bersama Jaya by the Company926.6 KBDisclosure of Information on Completion of Conditional Shares Subscription Agreement dated 28 December 20211.8 MBDisclosure of Information of Affiliated Transactions MDKA & MTI (CAPEX Facility)729.5 KBDisclosure of Information of Affiliated Transactions MDKA & MTI (Parent Facility)730.4 KB

2018

Announcement of Management Changes September 2018481.3 KBChange of the composition of Board of Directors and Board of Commissioners September 2018625.1 KBProspectus PUT I with Pre-Emptive Right August 20183.1 MBThe Additional Information and or the Revision on the Summary of the Prospectus PUT I August 20181,017.8 KBSummary of Prospectus of PUT I with Pre-Emptive Right June 2018706.7 KBDisclosure Information on The Affiliated Transaction - Novation of Saratoga May 2018202.9 KBDisclosure Information on The Affiliated Transaction - Novation of Provident May 2018202.1 KBDisclosure Information on The Affiliated Transaction - Assignment of Sponsor Loan May 2018204.0 KBDisclosure Information on The Material Transaction - Put Option April 2018425.1 KBDisclosure Information on The Change of Business Activities April 2018154.1 KBAnnouncement PANI Acquisition, November 20181.6 MBDisclosure Material Information with PT Bumi Suksesindo November 2018166.0 KBDisclosure Material Information - Acquisition of PANI Group, November 2018497.3 KBDisclosure Information in Relation to Affiliated Transaction November 2018 (1)497.3 KBDisclosure Information in Relation to Affiliated Transaction November 2018 (2)335.0 KBDisclosure Information in Relation to Affiliated Transaction October 2018557.2 KBThe Disclosure of Additional Information in Relation to The Proposed Capital Increase with Pre-emptive Right Issuance April 201896.6 KBDisclosure Information on The Affiliated Transaction April 2018191.3 KBThe Disclosure Information to the Shareholders of PT Merdeka Copper Gold Tbk in Relation to The Proposed Capital Increase with Pre-Emptive Rights Issuance March 2018134.6 KBTujuh Bukit Oxide Project Update February 20181.3 MB
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