June 13, 2011

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Japan Oil, Gas and Metals National Corporation
Division in Charge
Metals Finance Department: Mr. Nishikawa
TEL: +81-3-6758-8425

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Public Relation Division: Mr.Uematsu
TEL: +81-3-6758-8106

JOGMEC Makes Financial Assist to Alumina Project in Indonesia- Contributes to Stable Supply of Alumina to Japan -On June 13th 2011, Japan Oil, Gas and Metals National Corporation (“JOGMEC”,President: Hirobumi Kawano) provided a liability guarantee to support financing foralumina project promoted by Showa Denko K. K. (“SDK”, President: Hideo Ichikawa) inIndonesia.
Approximately 26.3 billion yen out of total fund necessary for the project will be financedby the loans from Japan Bank for International Cooperation (JBIC) and private financial
institutions (Mizuho Corporate Bank, Ltd. and The Sumitomo Trust and Banking Co.,
Ltd.). JOGMEC will guarantee 80 % (approx.8.4 billion yen) of approximately 10.5 billion
yen to be financed by private financial institutions. It is the second case where JOGMEC
1and JBIC carry cooperating financing support to a metal resource development project.
The project is a joint venture of SDK and Antam Tbk (“Antam”, President: Alwin SyahLoebis). The joint venture company is constructing a plant in Tayan District of West
Kalimantan, Indonesia, planning to produce chemical alumina, and the raw material
bauxite will be supplied from a mine operated by Antam nearby the plant. The
production capacity is 300,000t /y and it is expected to start operation in the beginningof 2014.
While alumina is commonly used for smelting of aluminum, aluminum hydroxide andalumina to be produced in the new plant are important raw materials for Japaneseindustries, which are widely used for various products such as water purification,functional materials (ceramics, abrasives, fire-resistant materials, heat-emission

materials, etc.) and electronic products depending on its characteristics. This is
JOGMEC’s first financial assistance to alumina project and is expected to contribute to
the stable supply of alumina to Japan.
JOGMEC will proactively assist companies which endorse exploration development
overseas for stable supply of overall metal resources.
1The first case was Esperanza copper development project in Chile in September 2009.

■ An Outline of the Project
The project is run by PT Indonesia Chemical Alumina (“ICA”, President: HendraSantika) which is 80% owned by Antam and 20% by SDK, which constructs the plantand produces chemical alumina in Tayan District, West Kalimantan, Indonesia.
Raw material to produce alumina is stably supplied by the project partner Antam from abauxite mine nearby the plant via supply agreement between ICA and Antam. It will
become the world’s biggest production plant which integrates from the mining ofmaterial bauxite ore to the production of final products.
The plant will have the capacity to produce 300,000 t/y of chemical alumina, and SDK
will off-take 200,000t for sales to customers in Japan. It is planned to start operation inthe beginning of 2014.
While SDK is currently producing 200,000 t/y of chemical alumina at Yokohama Plant,
the company has decided to withdraw from the chemical alumina production in
Yokohama by the end of 2015. SDK will use the 200,000 t/y of products from the newplant to substitute the current production in its Yokohama Plant.

○Tayan District■ Corporate Profile(1) P.T. Indonesia Chemical Alumina
Established in February 2007
President: Mr. Hendra Santika
Shareholders: PT ANTAM (Persero) Tbk (80%); SDK (20%)(2) PT ANTAM (Persero) Tbk
Head office: Jakarta, Indonesia
Established in July 1968
President: Mr. Alwin Syah Loebis
Shareholders: The Indonesian Government (65%) and public
Scope of business: Mining, processing and exporting of gold, nickel, bauxite and otherminerals.