20241010_AMMN_Laporan Bulanan Aktivitas Eksplorasi_31734942_lamp3.pdf

AMMAN

amman.co.id

Batu Hijau Block |

Expenditure:
e In pit resource drilling program costs, including core sample assay costs, and
mapping program costs, amounted to approximately USD $ 3.41 M.

Work areas:
e Batu Hijau Cu-Au mine.
e Batu Hijau Area of Interest (Aol) - Bersah.

Exploration parties:
e Manager (Resource drilling) - AMNT Mine Technical Service (MTS).
Drilling contractor - PT Minera Nusa Drillindo (PT MND).
Assay laboratory - Intertek Utama Service (ITS).
Umpire assay laboratory - PT Geoservices.
Manager (Mapping) - AMNT Exploration.

Assessment methods:
e Diamond drilling (12 rigs).
e Detailed geological mapping (including rock sampling).
e Alteration analyses using an ASD TerraSpec 4 Mineral Spectrometer.

Objectives:

e The aims of the on-going drill program are to increase the confidence level of the
ore reserve inphase-8 and the mineral resource classifications below the Batu Hijau
Phase-8 pit design.

e  Detailed geological mapping within the Batu Hijau Aol (Bersah areas) is a follow-up
to the previous guarter's mapping program. The aim is to improve geological
accuracy prior to the drill testing stage.

Exploration Results:
» 44 drill holes, completed or in progress, totaling 18,744.9 m (Figure 2).
e Core samples submitted to the assay lab amounted to 6,447.
e Batu Hijau Aol mappingarea - 29.2 Ha (Figure 3).

Forward Plan:
» The resource drilling program (7 rigs) will continue in A4 2024.
e Continue detailed geological mapping at Batu Hijau Aol (Bersah area).

PT AMMAN MINERAL INTERNASIONAL TBK
MENARA KARYA 6TH LEVEL, JALAN H.R. RASUNA SAID
BLOK X-5 KAV. 1-2 JAKARTA, INDONESIA 12950 T 4622157994600 F. 462 215296 4136

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Phase 8 Boundary

Figure 2. Batu Hijau Block 1 @3 2024 - In Pit Drill

amman.co.id

PT AMMAN MINERAL INTERNASIONAL TBK
MENARA KARYA 6TH LEVEL, JALAN H.R. RASUNA SAID
BLOK X-5 KAV. 1-2 JAKARTA, INDONESIA 12950 T 462215799 4600 F. 462 215296 4136 3

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Figure 3. Batu Hijau Block I 43 2024 - Exploration Mapping Area.

amman.co.id

PT AMMAN MINERAL INTERNASIONAL TBK
MENARA KARYA 6TH LEVEL, JALAN H.R. RASUNA SAID
BLOK X-5 KAV. 1-2 JAKARTA, INDONESIA 12950 T 4622157994600 F. 462 215296 4136 4

AMMAN NN

Elang Block II

Expenditure:

e# Exploration activities included drilling and geological mapping. Costs were circa USD
S3.74M.

Work Areas:
e# Elang Cu-Au Project.
e Gerbang East Cu-Au Prospect
e  Penungil Cu-Au Prospect.

Exploration Parties:
# Manager - AMNT Exploration.
e Drilling contractor - PT Minera Nusa Drillindo (PT MND).
e  Assay Laboratory (drill core, rock) - Intertek Utama Service (ITS).

Assessment Methods:
e Diamond drilling (6 rigs).
»  Geological mapping (including rock sampling).
e Alteration analyses using an ASD TerraSpec 4 Mineral Spectrometer.

Objectives:

# Geotechnical, hydrogeological and metallurgical drilling programs are supporting the
Elang DFS study. New geotechnical and hydrogeological data will be used to guide
the final Elang pit designs. New metallurgical data is for Elang South only.

e Resource development drilling continued at the Elang Cu-Au deposit (Figure 4). The
purpose of this infill program was to explore information gaps, improve the
geological model and to increase the confidence level of mineral resource
classifications within the latest Elang pit design.

# Detailed geological mapping at Gerbang East is testing for Cu-Au porphyry
mineralisation indicators within a lithocap (Figure 4).

»# Geological mapping at Penungil is testing northern extensions of the Sepekat Cu-Au
porphyry trend.

Exploration Results:
e Elang Cu-Au project diamond drilling (24 holes for 8,378.4 m):
o Geotechnical & hydrogeological - 14 holes (5,301.1 m) completed or in
progress,
o Metallurgical - 1 hole (285.5 m) in progress,
o Resource infill & exploration - 9 holes (2,791.8 m) completed or in progress,

e Core samples submitted to the assay lab amounted to 1,134.
e Geological mapping program - 122 rock and 22 soil samples were submitted to the
lab.

amman.co.id

Forward Plan:
e Elang deposit drilling (resource development, geotechnical, hydrogeological &
metallurgical), using nine (9) rigs, is planned for A4 2024.

PT AMMAN MINERAL INTERNASIONAL TBK
MENARA KARYA 6TH LEVEL, JALAN H.R. RASUNA SAID
BLOK X-5 KAV. 1-2 JAKARTA, INDONESIA 12950 T 4622157994600 F. 462 215296 4136 5

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Figure 4. Elang Block II @3 2024 - Exploration Locations.

PT AMMAN MINERAL INTERNASIONAL TBK
MENARA KARYA 6TH LEVEL, JALAN H.R. RASUNA SAID
BLOK X-5 KAV. 1-2 JAKARTA, INDONESIA 12950

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AMMAN NN

Rinti Block III

Expenditure:
» Geological mapping costs, including rock assay costs, amounted to approximately
USD $ 102.4 K.

Work Areas:
e  Rinti Cu-Au Project.

Exploration Parties:
# Manager - AMNT Exploration.
e  Assay Laboratory (rocks) - Intertek Utama Service (ITS).

Assessment Method:
e Geological mapping (including rock sampling).

Objectives:
e Detailed geological mapping was carried out over a significant IP chargeability
anomaly in the SW portion of the Rinti Block and South Sane area (Figure 5).

Exploration Results:
e Geological mapping program - 34 rock samples were submitted to the lab.

Forward Plan:
e Continue detailed geological mapping at SW Rinti and South Sane.

amman.co.id

PT AMMAN MINERAL INTERNASIONAL TBK
MENARA KARYA 6TH LEVEL, JALAN H.R. RASUNA SAID
BLOK X-5 KAV. 1-2 JAKARTA, INDONESIA 12950 T 4622157994600 F. 462 215296 4136 7

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amman.co.id

PT AMMAN MINERAL INTERNASIONAL TBK
MENARA KARYA 6TH LEVEL, JALAN H.R. RASUNA SAID

Figure 5. Rinti Block III 03 2024 - Exploration mapping area.

BLOK X-5 KAV. 1-2 JAKARTA, INDONESIA 12950 T 4622157994600 F. 462 215296 4136 8

AMMAN NN

amman.co.id

Lampui Block IV

Expenditure:
e  Explorationwas limited to geological mapping. Costs were circa USD $ 27.1 K.

Work Areas:
e  Lampui Prospect (Figure 6).

Exploration Parties:
# Manager - AMNT Exploration.
e  Assay Laboratory - Intertek Utama Service (ITS).

Assessment Methods:
»  Geological mapping (including rock sampling).
e Alteration analyses using an ASD TerraSpec 4 Mineral Spectrometer.

Objectives:
e Detailed geological mapping, over a significant potassium K-Th anomaly in NW and
NE corner of Lampui Block

Exploration Results:
» Geological mapping program - 12 rock samples were submitted to the lab.

Forward Plan:
e Review of previous exploration results.

PT AMMAN MINERAL INTERNASIONAL TBK
MENARA KARYA 6TH LEVEL, JALAN H.R. RASUNA SAID
BLOK X-5 KAV. 1-2 JAKARTA, INDONESIA 12950 T 4622157994600 F. 462 215296 4136 KJ

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E Figure 6. Lampui Block IV @3 2024 - Exploration Locations.

PT AMMAN MINERAL INTERNASIONAL TBK
MENARA KARYA 6TH LEVEL, JALAN H.R. RASUNA SAID
BLOK X-5 KAV. 1-2 JAKARTA, INDONESIA 12950 T 4622157994600 F. 462 215296 4136 10