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20260710_ANTM_Laporan Bulanan Aktivitas Eksplorasi_32110956_lamp1.pdf
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Exploration Report
Until June 30, 2026, ANTAM’s Jakarta, July 10, 2026
total exploration preliminary
unaudited cost of Rp72.60 PT ANTAM (Persero) Tbk (ANTAM; IDX: ANTM; ASX: ATM) is
billion focusing on gold, nickel pleased to announce its exploration report for periods ended
and bauxite. June 30, 2026 in accordance with the Indonesia Stock
Exchange listing rules.
ANTAM’s exploration activities until June 30, 2026 were
focused on gold, nickel and bauxite with total unaudited
preliminary cost of Rp72.60 billion.
GOLD
Until June 30, 2026, ANTAM conducted gold exploration
activities in Pongkor, West Java. In Pongkor, ANTAM
conducted in underground drilling, surface drilling, traverse
survey, geological mapping, sampling and geochemical
analysis and also laboratory analysis.
NICKEL
ANTAM's nickel exploration activities as of 30 June 2026, were
conducted in Southeast Sulawesi, specifically in Konawe Utara
and Pomalaa, in North Maluku, including Morimoi and the
Mining Business License Area (IUP) of ANTAM's subsidiary,
PT Sumberdaya Arindo (PT SDA), located in Buli.
In Konawe Utara, exploration activities included single-tube
drilling, geological mapping, grid surveying, core sampling,
and laboratory analysis. In Pomalaa, activities comprised
single-tube drilling, geological mapping, sampling, and
chemical analysis.
FOR MORE INFORMATION
PLEASE CONTACT: In Morimoi, exploration activities carried out included single-
tube drilling, geological mapping, sampling, and chemical
analysis. Meanwhile, within PT SDA's Production Operation
Wisnu Danandi Haryanto (OP) IUP area, exploration activities were primarily focused on
(Corporate Secretary) completing the forestry permitting process.
Tel : (6221) 789 1234
Email : corsec@antam.com
Website : www.antam.com
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Exploration Report
BAUXITE
ANTAM's bauxite exploration activities as of 30 June, 2026 were conducted in the Tayan and
Landak areas of West Kalimantan. In Tayan, exploration activities included land permit
identification, drilling, geological mapping, geodetic surveying, and geochemical analysis.
In Landak, exploration activities included drilling, geological mapping, geodetic and geochemical
surveys.
ANTAM through the Geomin Unit undertakes integrated mineral exploration activities which
include area survey activities, geological exploration, geophysical exploration, geodesy survey,
drilling, physical and chemical analysis, calculation of mineral reserves and resources supported by
integrated Geographic Information System (GIS). Exploration activities conducted to ensure the
adequacy of the Company's strategic mineral resources and reserves potential.
ANTAM’S EXPLORATION AREAS UNTIL JUNE 30, 2026
Bauxite: Nickel:
Tayan Marimoi
Nickel:
Buli
Bauxite: Nickel:
Landak North Konawe
Nickel:
Pomalaa
Gold:
Pongkor
The information in this report that relates to Exploration Results, Mineral Resources or Ore Reserves is based
on information compiled by Mr. Bronto Sutopo who is a Member of The Australasian Institute of Mining
and Metallurgy. Mr. Bronto Sutopo is a full-time employee of the company. Mr. Bronto Sutopo has sufficient
experience which is relevant to the style of mineralisation and type of deposit under consideration and to
the activity which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the
‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mr. Bronto
Sutopo consents to the inclusion in the report of the matters based on his information in the form and
context in which it appears.
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