ADDING VALUE TO INDONESIA’S VAST BAUXITE RESERVESTATO MIRAZA| President Director of PT ANTAM (Persero) Tbk2nd Annual Smelter Summit | Miami, 24-26 February 2015

Chemical Grade Alumina Project Tayan, West Kalimantan

IDX: ANTM | ASX: ATM

Outline

• Latest Market Updates

• ANTAM at a glance

• Project updates: SGA Mempawah Project and CGA Tayan

Project

• Closing remark

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Latest Market Updates

Macro Events Affecting Aluminum Price in 2014

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ANTAM at a glance

COAL MINESarolangun, Jambi(PT Indonesia Coal

Resources)

CHEMICAL GRADE ALUMINA PLANTTayan, West Kalimantan

(PT Indonesia Chemical Alumina)

NICKEL MINETanjung Buli & PakalIsland, North Maluku

NICKEL MINE & FERRONICKEL PLANTPomalaa, Southeast

Sulawesi

BAUXITE MINE

Tayan, West Kalimantan

GEOMIN EXPLORATION UNITPulogadung, Jakarta

LOGAM MULIA PRECIOUS METALS PROCESSING & REFINERY BUSINESS UNITPulogadung, Jakarta

GOLD MINEPongkor, West Java

GOLD MINECibaliung, Banten

(PT Cibaliung Sumberdaya)

SPONGE IRON SMELTERBatulicin, South Kalimantan(PT Meratus Jaya Iron &

Steel)

GOLD MINEGosowong

(PT Nusa Halmahera Minerals)

Operations area

• Indonesia’s leading natural-resources based company• Diversified & vertically integrated: nickel, gold, alumina, bauxite and coal• Vast, high quality reserves & resources• Strong corporate governance practice

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COAL Jambi

NICKELTanjung Buli & Pakal Island,

North Maluku

NICKEL Pomalaa,

Southeast Sulawesi

BAUXITE Tayan, Landak, Munggu

Pasir, Meliau and Mempawah, West

Kalimantan

NICKELGag Island, Papua

GOLDPongkor, West

Java

GOLDCibaliung, Banten

LEAD/ZINCPT Dairi Prima Minerals

GOLDPT Gorontalo Minerals

GOLDPapandayan, West Java

GOLDPT Sumbawa Timur

Mining

GOLDJambi

GOLDPT SorikmasMining

GOLDPT Pelsart Tambang

Kencana

Exploration area and JVs

NICKEL PT Weda Bay

Nickel

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Mineral reserves and resources

CommodityTotal reserves and ore resources 2012

Total reserves and ore resources 1H13

Total reserves and ore resources 2013

∆2013/1H13

Nickel saprolite

361,300,000 wmt 379,000,000 wmt 436,300,000 wmt 15%

Nickel limonite

463,950,000 wmt 476,900,000 wmt 537,900,000 wmt 13%

Gold ore 9,000,000 dmt 9,500,000 dmt 11,224,000 dmt 18%

Bauxite 473,900,000 wmt 546,800,000 wmt 699,500,000 wmt 28%

Based on Competent Person’s Report per 31 December 2013; JORC Compliant

• Nickel and bauxite are current focus for growth• Corporate actions and aggressive exploration activities to enhance existing gold reserves and resources

RESERVES AND RESOURCES TABLE

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Our main development projects

FERRONICKEL EAST HALMAHERA

► Nickel ore processing to produce ferronickel

► Project value estimation : US$1.6 billion, including CFPP

► Capacity: 40,000 Tni per year► Status: construction in progress

EXPANSION OF FERRONICKEL PLAN POMALAA (P3FP)

► Expansion of ferronickel production capacity in Pomalaa from 18,000-20,000 TNi per year up to 27,000-30,000 TNi per year

► Project value estimation : US$600 million► Status: construction in progress

NICKEL PIG IRON & STAINLESS STEEL

► Nickel ore processing into nickel pig iron and produce stainless steel

► Project value estimation : TBA► Capacity: 40,000 ton NPI per year

(10% Ni)2 millions ton SS per year

► Status: Internal study and strategic partner selection

MEMPAWAH SMELTER GRADE ALUMINA

► Bauxite processing project to produce smelter grade alumina (SGA)

► Project value estimation: US$1.7–1.8 billion

► Capacity: 1.6 milions tons SGA per year

► Status: Internal study and strategic partner selection

TAYAN CHEMICAL GRADE ALUMINA

► Bauxite processing project to producechemical grade alumina (CGA)

► Project value estimation: US$490 million► Capacity: 300,000 tons CGA per year► Ownership: ANTAM (80%) & SDK Japan

(20%)► Status: Commercial operations

ANODE SLIME

► Anode slime processing► Capacity: 2,000 ton per

year► 1st phase: 500 ton

per year► 2nd phase: 1,500 ton

per year► Status: Construction

NICKEL MIXED HYDROXIDE

► Nickel ore processing into nickel mixed hydroxide

► Project value estimation : TBA► Capacity: 30,000 tons per year► Status: Joint study with strategic partner

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Project Updates

Added value of SGA

Project updates: SGA Mempawah Project

Pioneer industry in development of smelter grade alumina (SGA), integration of ANTAM’s bauxite business and synergy between SOEs (ANTAM and Inalum)

Smelter grade alumina

Capacity:

1.6 mtpaSGAStatus:

Review with strategic partnerEstimated project cost:

US$1.7-1.8BEstimated Completion:

TBA

Project updates: CGA Tayan Project

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Capacity:

300,000 tpaCGAStatus:

Commercial OperationsEstimated project cost:

US$490 million

Tayan chemical grade alumina plantSanggau, West Kalimantan

• The Tayan CGA plant is developed by PT Indonesia Chemical Alumina, a jointly controlled entity between ANTAM (80%) and Showa Denko K.K. (SDK) of Japan (20%).

• The CGA products will be sold to the Indonesian domestic market as well as exported to Japan and other international market.

Project location

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Workforce

42

113212 Staff/Engineer

Foreman/Svp

Operator/Tech

50%30%

20%

Origin of workforce

Tayan-Toba-Meliau (Ring-1)

Kalimantan Barat (Ring-2)

Non Kalbar(Ring-3)

Workforce breakdown by level

ANTAM recruits local workforce to enhance the local competencies and lower local unemployment rate

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Construction of Tayan ChemicalGrade Alumina project commenced. Groundbreaking by Minister of Industry

Snapshots (1)

PT Indonesia Chemical Alumina and JBIC, commercial banks consortium signed credit facility of Tayan

Chemical Grade Alumina project

Construction 2012 - 2014

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Snapshots (2)

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Alumina plant site

ATH product ATH packaging

Rotary kiln areaBauxite feeding area

Snapshots (3)

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Thickener

Rod mil area

Closing remarks

The key advantages of Indonesia bauxite/alumina industry to compete are:

1. Vast and high quality reserves and resources - low temperature process

2. Energy resources

3. Strategic location

4. Competitive human resources with strong technical and engineering

background to support project development

5. Domestic market potential to grow in the future

6. Potential to expand capacity and develop alumina-aluminum integrated

plants

Thank you

PT ANTAM (Persero) TbkGedung Aneka Tambang. Jl. Letjen TB Simatupang No. 1Lingkar Selatan, Tanjung Barat. Jakarta 12530, IndonesiaTel. : (62-21) 789 1234, 781 2635Fax. : (62-21) 789 1224Email: corsec@antam.com

DisclaimerThis presentation and/or other documents have been written and presented by ANTAM. The

materials and information in the presentation 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 on information 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 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 2004 Edition of the

‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’.

Mr. Lukman Effendi consents to the inclusion in the presentation of the matters based on his

information in the form and context in which it appears