Ade Kadarusman Implementasi KCMI 16 Mei 2013 -Perhapi

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Agenda

Slide 1

Implementasi Kode JORC/KCMI

Untuk Pelaporan Sumberdaya dan Cadangan

Mineral Nikel di PT Antam

Ade Kadarusman PhD, MAusIMMRomzy Rio Wibowo, MAusIMM- Unit Geomin -

16 Mei 2013

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Materi:

• Sekilas PT Antam

• Sekilas Eksplorasi Nikel PT Antam

• Data Geologi and Eksplorasi, protokol sampling

• Estimasi Sumberdaya Nikel

• Pelaporan Hasil Eksplorasi dan Sumberdaya

May 2009 –

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Sekilas AntamSekilas Antam Antam merupakan perusahaan

berbasis pertambangan terkemuka

dengan kegiatan operasi yang

terintegrasi secara vertikal

Antam merupakan perusahaan

berorientasi ekspor dengan pasar

utampa Asia dan Eropa

Antam merupakan perusahaan

berbasis pertambangan dengan

komoditas yang terdiversifikasi

Komoditas utama Antam adalah

feronikel, emas, bijih nikel, perak,

bauksit, batubara, dan jasa pemurnian

logam mulia

Wilayah operasi dan eksplorasi Antam

tersebar di seluruh Indonesia

Penjualan Bersih 1Penjualan Bersih 1HH 2012: Rp2012: Rp44,,55 TriliunTriliunPenjualan Bersih 1Penjualan Bersih 1HH 2012: Rp2012: Rp44,,55 TriliunTriliun

Destinasi Destinasi Penjualan Penjualan 11HH 20122012Destinasi Destinasi Penjualan Penjualan 11HH 20122012

Batubara dan

bauksit

3%

Feronikel

26%

Emas, Perak dan

Jasa Pemurnian

44%

Bijih Nikel

27%

Ekspor

55%

Domestik

45%

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Visi dan Misi ANTAM

Vision : a World Class Mining Company

Mission : Implemented World Class / Best Practice in

in Mining & Exploration

Antam registered in IDX and ASX :

Follow Indonesian (KCMI) and Australian (JORC)

regulations for Public Reporting of Exploration

result, Mineral Resources and Ore Reserves

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Wilayah Wilayah EksplorasiEksplorasi AntamAntam

Lokasi: Tayan, Munggu Pasir dan

Mempawah, Kalimantan Barat

Aktivitas: pengukuran grid, test-

pitting, dan percontoan

BAUKSITLokasi: Tayan, Munggu Pasir dan

Mempawah, Kalimantan Barat

Aktivitas: pengukuran grid, test-

pitting, dan percontoan

BAUKSIT

NIKELNIKEL

Lokasi: Sungai Keruh, Jambi;

Sintang, Kalimantan Barat dan

Barito Selatan, Kalimantan

Tengah

Aktivitas: drilling, dll.

BATUBARA

Lokasi: Sungai Keruh, Jambi;

Sintang, Kalimantan Barat dan

Barito Selatan, Kalimantan

Tengah

Aktivitas: drilling, dll.

BATUBARA

Lokasi: Mao, Batuisi dan Karosa,

Sulawesi Barat

Aktivitas: drilling, pemetaan, dll.

EMAS

Lokasi: Mao, Batuisi dan Karosa,

Sulawesi Barat


EMASLokasi: Oksibil, Pegunungan

Bintang, Papua

Aktivitas: eksplorasi awal dan

pemetaan

EMASLokasi: Oksibil, Pegunungan

Bintang, Papua

Aktivitas: eksplorasi awal dan

pemetaan

EMAS

Lokasi: Batang Asai, Sarolangun,

Jambi

Aktivitas: pemetaan geologi

detail, singkapan, pecontoan

batu dan XRD, dll.

EMASEMASLokasi: Batang Asai, Sarolangun,

Jambi

Aktivitas: pemetaan geologi

detail, singkapan, pecontoan

batu dan XRD, dll.

EMASEMAS

Pomalaa, Lalindu, Mandiodo

dan Lasolo, Tapunopaka ,

Sulawesi Tenggara;

Buli ,Maluku Utara dan Gag,

Papua Barat


Lokasi: Pongkor dan Papandayan,

Jawa Barat dan Cibaliung, Banten

Aktivitas: pemetaan geologi dan

pecontoan, dll.

EMASLokasi: Pongkor dan Papandayan,

Jawa Barat dan Cibaliung, Banten

Aktivitas: pemetaan geologi dan

pecontoan, dll.

EMAS

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Kegiatan Eksplorasi Nikel

Kegiatan Eksplorasi Nikel

2012-2013 berlangsung di:

- Pulau Pakal dan Sangaji

Kab. Halmahera Timur,

Propinsi halmahera Utara

- Pulau Gag Kabupaten Raja

Ampat, propinsi Papua

Barat

- Pomalaa, Kab. Kolaka,

Propinsi Sulawesi Tenggara

Kegiatan Eksplorasi PT Antam

dilakukan oleh Unit Geologi-

Eksplorasi yg dikenal sebagai

Unit Geomin

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Wilayah Eksplorasi Sangaji-Buli

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Wilayah Eksplorasi

Pomalaa

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TOP SOILTOP SOIL

BOULDERBOULDER

SAPROLITESAPROLITEBOULDERBOULDER

SAPROLITESAPROLITESAPROLITESAPROLITE

PProfilrofil GGeologieologiNikelNikel LateritLaterit PomalaaPomalaa

LIMONITELIMONITE

SAPROLITESAPROLITE

BEDROCKBEDROCK

Silica Boxwork Silica Boxwork

LIMONITE

SAPROLITE

Tambang UtaraTambang Utara

Tambang TengahTambang Tengah

Tambang SelatanTambang Selatan

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Samples Collections

(drilling, testpitting etc)

Samples Preparations

Laboratory Analyses

Data validation-verification, database, evaluation,

Resources Estimation

- Sampling method- QAQC- Samples type

- Sample reduction (quantity & grain size)- Tools selection (reduction/splitting)- QAQC- Mix-up + contamination

-Analytical Instruments selection-Lab QAQC-Analytical error

-Statistical analyses / EDA-Geological domaining-Data transfer/security

Sam

plin

g p

roto

col QAQC

Proses Pengambilan Data dan Teknik

Pengambilan Conto

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SAMPLING AND QAQC PROTOCOL FOR NICKEL EXPLORATION

CORE DRILLING ACTIVITIES Drilling sampling per meter progress, core recovery recorded satker pemboran

Sample put into a core tray with 1 m length

CORE DRILLING SAMPLES 117.103.135

CHIP SAMPLE FOR DENSITY Logging using available form and conducting after 5 meter samples

collected in one 5 meter core box 117.103.134

Core Phote is taken two times before and after core splitting

200/100 m spacing SAMPLES PACKING & NUMBERING Densityis measured based on Archimedes Law 117.103.135

Back up Half Core Sample

FIELD WEIGHING Retained half core / back up samples per 100 m spacing 117.103.135

PACKAGING & ADMINISTRATION (Surat) "Surat" contains 10-20 holes / 100-500 samples 117.103.135

DELIVERY SAMPLES TO SAMPLEHOUSE

UNPACKING & CHECKING number of samples, code of samples, location compare with

delivery documents

WET WEIGHING

OVEN

DRYING 12 HOURS

Temperature = 100±5°C

DRY WEIGHING MC is recorded after obtaining dry weight

1:50

JAW CRUSHER Blank Sample (Silica Sand) Blank Sample inserted in every 50 Samples sequences to measure

(-2 inch / 5 mm Grain Product) contaminations and continue to pulverizer process

Jaw Crusher Product 1:50

Grain Size -5mm 5 mm Screen Test

HOMOGENEOUS / MIXING

(Manually)

Splitting in Matrix 2x5 (depends on kg samples from the field)

Splitting Product

aprox. 600 gr 1:50 Sample Duplicate is taken at every 50 samples

Duplicate Samples (JC) sequences of jaw crusher products

PULVERIZER

(-200 mesh Grain) 1:50

Blank Bowl Sample (Silica Sand)

Pulverizer Product

Grain Size -200 mesh

Sample selection for check assay is provided by Exploration Project

HOMOGENEOUS

(Manually)

Pulp for back up/duplo 1:50

1:50 Coning / Quartering in exploration site (300 gr) Check Assay to External Lab

Duplicate Samples (PV) 50 gr Divide into 4 portion Pulverizer product samples grain size must be a minimum 95%

Disposal 1:50 passed screen test -200mesh at every 50 samples sequences

Pulp Product for assaying 250 gr 200 mesh Screen Test if fail those samples in the sequence must be process to re-pulverize

50 gr

Packing and administration shipping to Jakarta 1:50

(Surat) Exploration Standard (CRM)

Unpacking and Checking in Laboratory

Geomin Jakarta

Spooning for take ±10 gram Geomin Lab Pulp Back Up 1:70

Keep the rest (back up) 40 gr Repetition Samples (Repeat)

PRESSING (press pellet)

1:70 1:70

ReplicateSamples (Re-Reading) Standard Sample (in house & CRM)

Lab Product Assay

Ni,Co,Fe2O3,SiO2,CaO,MgO,MnO,Al2O3,CR2O3,TiO2,P2O5,SO3

Document / Data Acqusition

QC Samples

Back Up / Storage Sample

273.101.104

273.101.138

Flow Chart / Alur Kerja List of SOP/ PK / IK

satker laboratorium

273.101.104

Explanation / Penjelasan

Package of Lab Standard Samples is inseerted in every 70 samples

sequences of XRF analyzer

273.101.111

satker laboratorium

DR

ILLI

NG

(O

N S

ITE)

PR

EPA

RA

TIO

N L

AB

- B

ULI

,KEN

DA

RI,

GA

G, P

OM

ALA

ALA

B G

EOM

IN J

AK

AR

TA

ANALYSING (XRF)

REJECT samples First Reduction

LOGGING

CORE PHOTO

Homogenous (Manually)

273.101.137

Disposal

273.101.104

273.101.104

273.101.104

273.101.104

273.101.104Surat contains 3-4 titik bor (BHID) / 50-100 samples

Sample Repetition (Repeat) is inserted int every 70 samples sequence

of press pellets preparation

Sample Replicate (ReReading) is inserted in every 70 samples sequence

of XRF analyzer

Sample Duplicate is taken at every 50 samples sequence of Pulverizers

product

273.101.139

273.101.141

Exploration CRM standard inserted in package sample send to Geomin

Lab Jakarta and recorded in Surat

273.101.104

273.101.104

273.101.104

Implementasi – Sampling and QAQC Protocol

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Data AcquisitionData Acquisition

Geological Mapping

•Regional

•Semi Detail

•Detail

Sampling Type

•Drilling

•Test pits

Survey data

•Collar Plan

•Collar GPS

•Collar Pre Drill (Grid)

•Collar Post Drill (Re-Ukur)

Sampling & Analytical Procedures

•Logging

•Sampling

•Assaying

Quality Control & Quality

Assurance

•External check

•Sample blank & standard

•Bias, Precision & Accuracy

•QAQC reports of process & result

Physical Parameters

•Density

•Moisture Content

•Size Distribution

•Geophysics

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Implementasi Sistem Validasi Data, Otomisasi dan Database

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Database Database -- EDPSEDPS

Database Build

Raw Assay

Geology Logs

Moisture Content

Density

Collar Survey

Data Validation

Collar Survey

Raw Assay

Geology Logs

Moisture Content

Density

Data Confidence Coding

Data Quality

Data Preparation

Database SummaryNo PROBLEM BHID FROM TO

1 TO < FROM CII/i10-10/29 23 22.5

2 TO < FROM CII/i10-12/29 19 18.5

3 TO < FROM CIII/i2-23/27 5 1

4 TO < FROM CIII/i4-33/27 5 1

5 TO < FROM CIII/i5-40/4 8 1

6 TO < FROM CII/i9-28/29 22 0

7 TO < FROM CII/i9-28/29 23 0

8 TO < FROM CII/i9-28/29 24 22

9 TO < FROM CII/i9-28/29 25 23

10 TO < FROM CII/i9-28/29 26 24

11 TO < FROM CII/i9-28/29 27 25

12 TO < FROM CII/i9-27.5/29 15 0

13 TO < FROM CII/i9-27.5/29 16 0

14 TO < FROM CII/i9-27.5/29 17 15

15 TO < FROM CII/i9-27.5/29 18 16

16 TO < FROM CII/i9-27.5/29 19 0

17 TO < FROM CII/i9-27.5/29 20 0

18 TO < FROM CII/i9-27.5/29 21 17

19 TO < FROM CII/i9-27.5/29 22 0

20 TO < FROM CII/i9-27.5/29 23 0

21 TO < FROM CII/i9-27.5/29 24 18

22 TO < FROM CII/i9-27.5/29 25 19

23 TO < FROM CII/i9-27.5/29 26 0

24 TO < FROM CII/i9-27.5/29 27 0

25 TO < FROM CII/i9-27.5/29 28 20

26 TO < FROM CII/i9-27.5/29 29 0

27 TO < FROM CII/i9-27.5/29 30 0

28 TO < FROM CII/i9-27.5/29 31 21

29 TO < FROM CII/i9-27.5/29 32 22

30 TO < FROM CII/i9-27.5/29 33 23

31 TO < FROM CII/i9-27.5/29 34 24

32 TO < FROM CII/i9-27.5/29 35 0

33 TO < FROM CII/i9-27.5/29 36 0

34 TO < FROM CII/i9-27.5/29 37 25

35 TO < FROM CII/i9-27.5/29 38 0

36 TO < FROM CII/i9-27.5/29 39 0

37 TO < FROM CIII/j4-29 A/1 5 0

38 TO < FROM CIII/j4-29 A/1 6 0

39 TO < FROM CIII/j4-29 A/1 7 5

40 TO < FROM CIII/j4-29 A/1 8 6

No PROBLEM BHID FROM TO

1 TO < FROM CII/i10-10/29 23 22.5

2 TO < FROM CII/i10-12/29 19 18.5

3 TO < FROM CIII/i2-23/27 5 1

4 TO < FROM CIII/i4-33/27 5 1

5 TO < FROM CIII/i5-40/4 8 1

6 TO < FROM CII/i9-28/29 22 0

7 TO < FROM CII/i9-28/29 23 0

8 TO < FROM CII/i9-28/29 24 22

9 TO < FROM CII/i9-28/29 25 23

10 TO < FROM CII/i9-28/29 26 24

11 TO < FROM CII/i9-28/29 27 25

12 TO < FROM CII/i9-27.5/29 15 0

13 TO < FROM CII/i9-27.5/29 16 0

14 TO < FROM CII/i9-27.5/29 17 15

15 TO < FROM CII/i9-27.5/29 18 16

16 TO < FROM CII/i9-27.5/29 19 0

17 TO < FROM CII/i9-27.5/29 20 0

18 TO < FROM CII/i9-27.5/29 21 17

19 TO < FROM CII/i9-27.5/29 22 0

20 TO < FROM CII/i9-27.5/29 23 0

21 TO < FROM CII/i9-27.5/29 24 18

22 TO < FROM CII/i9-27.5/29 25 19

23 TO < FROM CII/i9-27.5/29 26 0

24 TO < FROM CII/i9-27.5/29 27 0

25 TO < FROM CII/i9-27.5/29 28 20

26 TO < FROM CII/i9-27.5/29 29 0

27 TO < FROM CII/i9-27.5/29 30 0

28 TO < FROM CII/i9-27.5/29 31 21

29 TO < FROM CII/i9-27.5/29 32 22

30 TO < FROM CII/i9-27.5/29 33 23

31 TO < FROM CII/i9-27.5/29 34 24

32 TO < FROM CII/i9-27.5/29 35 0

33 TO < FROM CII/i9-27.5/29 36 0

34 TO < FROM CII/i9-27.5/29 37 25

35 TO < FROM CII/i9-27.5/29 38 0

36 TO < FROM CII/i9-27.5/29 39 0

37 TO < FROM CIII/j4-29 A/1 5 0

38 TO < FROM CIII/j4-29 A/1 6 0

39 TO < FROM CIII/j4-29 A/1 7 5

40 TO < FROM CIII/j4-29 A/1 8 6

KODE SAMPLE XCOLLAR YCOLLAR ZCOLLAR FROM TO ZONE NI CO FE

A.02 424702.3 86074.55 100.19 0 1 0B 0.87 0.17 44.34

A.02 424702.3 86074.55 99.19 1 2 L 1.21 0.31 60.78

A.03 424702.3 86074.55 97.19 2 3 L 1.21 0.31 60.78

A.02 424712.3 86074.55 94.19 4 5 S 1.95 0.03 10.3

A.02 424712.3 86094.55 89.19 5 6 S 2.22 0.03 9.4

A.02 424702.3 86094.55 83.19 6.5 7.5 S 1.47 0.02 9.26

A.02 424702.3 86094.55 75.69 7 8 B 0.3 0.02 6.09

KODE SAMPLE XCOLLAR YCOLLAR ZCOLLAR FROM TO ZONE NI CO FE

A.02 424702.3 86074.55 100.19 0 1 0B 0.87 0.17 44.34

A.02 424702.3 86074.55 99.19 1 2 L 1.21 0.31 60.78

A.03 424702.3 86074.55 97.19 2 3 L 1.21 0.31 60.78

A.02 424712.3 86074.55 94.19 4 5 S 1.95 0.03 10.3

A.02 424712.3 86094.55 89.19 5 6 S 2.22 0.03 9.4

A.02 424702.3 86094.55 83.19 6.5 7.5 S 1.47 0.02 9.26

A.02 424702.3 86094.55 75.69 7 8 B 0.3 0.02 6.09

BHID FROM TO

BI/j9-17/16 0 1

BI/j9-17/16 1 2

BI/j9-17/16 2 3

BI/j9-17/16 3 4

BI/j9-17/16 5 6

BI/j9-17/16 6 7

BI/j9-17/16 7 8

BI/j9-17/16 8 9

BI/j9-17/16 9 10

BHID FROM TO

BI/j9-17/16 0 1

BI/j9-17/16 1 2

BI/j9-17/16 2 3

BI/j9-17/16 3 4

BI/j9-17/16 5 6

BI/j9-17/16 6 7

BI/j9-17/16 7 8

BI/j9-17/16 8 9

BI/j9-17/16 9 10

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Drill Hole Description form - Automation

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SScreen creen Test Test

Uji Kelayakan Keseragaman Ukuran Conto di Lab. Preparasi Uji Kelayakan Keseragaman Ukuran Conto di Lab. Preparasi di Sitedi Site

Lolos >85% = 84,30% Lolos >85% = 91,49%

Assay QAssay QA/QC A/QC

Quality Assurance & Quality Quality Assurance & Quality ControlControl PerformancePerformance

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y = 0,9894x + 0,0002R² = 0,9442

0

1

2

3

4

5

6

0 1 2 3 4 5 6

Pomalaa Pulverizer Duplicate - Ni

y = 0,975x + 0,022R² = 0,9498

0

1

2

3

4

5

6

0 1 2 3 4 5 6

Pomalaa Jaw Crusher Duplicate - Ni

Duplo Sample Duplo Sample Untuk Menguji Hasil dari Proses Reduksi Conto di Lab. Preparasi Untuk Menguji Hasil dari Proses Reduksi Conto di Lab. Preparasi

JC PV

Precision: 3% (95% CL)

Presisi XRF di Lab Geomin

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HHistogram istogram -- NiNi

Cog 1,5%

Cog 1,2%

Cog 1,2%

Cog 1,5%

Mean=1,12

Mean=0,81

Exploratory Data Analyses

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-25

-23

-21

-19

-17

-15

-13

-11

-9

-7

-5

-3

-1

1

3

5

7

9

11

13

15

17

19

0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50

Elements (%)

Laterite Profile (Lim & Sap Zone)Tambang Utara and Tambang Tengah

Depth vs MgO, Fe & SiO2MgO Tambang Utara MgO Tambang Tengah

Fe Tambang Utara Fe Tambang Tengah

SiO2 Tambang Utara SiO2 Tambang Tengah

-25

-23

-21

-19

-17

-15

-13

-11

-9

-7

-5

-3

-1

1

3

5

7

9

11

13

15

17

19

0,0 0,4 0,8 1,2 1,6 2,0 2,4 2,8 3,2 3,6 4,0 4,4 4,8 5,2 5,6 6,0 6,4

Elements (%)

Laterite Profile (Lim & Sap Zone)Tambang Utara dan Tambang Tengah

Depth vs Ni, Co, Cr and AlNi Tambang Utara Ni Tambang Tengah

Co Tambang Utara Co Tambang Tengah

Cr Tambang Utara Cr Tambang Tengah

Al Tambang Utara Al Tambang Tengah

CChemistry Profilehemistry Profile

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Ternary Diagram Ternary Diagram Plot_99Plot_99

Silica Boxwork di

Lim & BRK

Silica boulder di

LIM

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Geological Interpretation

& Data Analysis

Statistics

Domaining

High Grade Cuts

Variography

Resource EstimationResource Estimation

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Modelling

Drillhole

Transformation

Wireframe Models

Block Model

Ordinary Kriging

Estimations

Ordinary Kriging

Results

Resource EstimationResource Estimation

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2D RESOURCE ESTIMATION

Database Updating

Plotting of Drill holes data

Create polygon area of

influence

Define Domaining

Resource Classification

based on area of influence

(drill spacing)

Define Cut of Grade

Estimate ResourcesCLASSIFICATION DRILL SPACING Area of Influence (LP)

MEASURED 25m x 25m LP <= 1000

INDICATED 50m x 50m & 100m x 100m 1000 < LP <= 15000

INFERRED 200m x 200m & 400m x 400m LP > 15000

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• Resource Classification

• Mineral Resource Statement

• Resource Model Files

Resource StatementResource Statement

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Technical Report and follow the JORC / KCMI

standard

MR & OR Tech Report -

Nickel

MR & OR Tech Report -

Bauxite

MR & OR Tech report -

Gold

Feasibility Study

Report

Competent

Person Report

(consolidated

report)

Mineral Reserve

Development (MRD) and

Geomin Unit

Antam Annual Report

JORC–CIM-KCMI

Laporan proyek (LA)

Laporan resource

Laporan Petrografi

Laporan khusus

Laporan semester

Laporan assay

Studi2 khusus

dll

documentation

IDX + ASX

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Contents of Technical Report for Public Reporting (MR & OR Tech Report)

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Competent Person Report

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Executive Summary

Introduction

Tenure

Geology

Data Acquisition

Resource Estimation

Resource Statement

Risk

Assessment

External Resources AssessmentsExternal Resources Assessments

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JORC Compliance Report

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Resources Statement

at Annual Report with

JORC / KCMI

Compliance

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THANK YOU

Visit our website www.antam.comVisit our website www.antam.com

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This presentation and/or other documents have been written and presented by Antam. The materials and information

in the presentations and other documents are for informational purposes only, and are not an offer or solicitation for

the purchase or sale of any securities or financial instruments or to provide any investment service or investment

advice.

This presentation is for discussion purposes only and is incomplete without reference to, and should be viewed solely

in conjunction with, the oral briefing provided by Antam. Neither this presentation nor any of its contents may be

disclosed or used for any other purpose without the prior written consent of Antam.

The information in this presentation is based upon forecasts and reflects prevailing conditions and our views as of this

date, all of which are accordingly subject to change. Actual results could differ materially from forecasts. Antam’s

opinions and estimates constitute Antam’s judgment and should be regarded as indicative, preliminary and for

illustrative purposes only.

The information in this presentation that relates to Exploration Results, Mineral Resources or Ore Reserves is based oninformation compiled by Mr. Lukman Effendi, who is a Member of The Australasian Institute of Mining and Metallurgy.Mr. Lukman Effendi is a full-time employee of the company. Mr. Lukman Effendi has sufficient experience which isrelevant to the style of mineralisation and type of deposit under consideration and to the activity which he isundertaking to qualify as a Competent Person as defined in the 2004 Edition of the ‘Australasian Code for Reporting ofExploration Results, Mineral Resources and Ore Reserves’. Mr. Lukman Effendi consents to the inclusion in thepresentation of the matters based on his information in the form and context in which it appears.

Slide 32

DisclaimerDisclaimer

Ade Kadarusman Implementasi KCMI 16 Mei 2013 -Perhapi

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Transcript of Ade Kadarusman Implementasi KCMI 16 Mei 2013 -Perhapi