A Joint venture company between PT Krakatau Steel (Persero) Tbk & PT Antam Tbk

Product IRK 1

is sponge iron with 3~22 mm of size as PT.MJIS main product as a result of iron ore processing with Rotary Kiln technology with Coal as reductor.

product irk1 sponge iron
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Product IRK 2

is sponge iron with -3 mm of size as PT.MJIS main product as a result of iron ore processing with Rotary Kiln technology with Coal as reductor.

product irk2 sponge iron
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Our customers

Until now, there are several Partner PT Meratus Jaya Iron & Steel, which has been using the product IRK 1 & IRK 2 of our company, which are:

  • Krakatau Steel, PT
  • Multi Kreasindo Gemilang, PT
  • Asian Prima Indosteel, PT
  • Ispat Indo, PT
  • Red Ore Mineral Resources, PT

Company Profile

PT MJIS is processing Iron ore with Rotary Kiln technology to produce Sponge Iron, named as Iron Rotary Kiln, as a raw material of steel making.

MJIS At Brief

PT MJIS was established in June 9, 2008. It is a joint venture between PT Krakatau Steel and PT Aneka Tambang.

Business Venture

PT MJIS is a company basis in processing iron ore using Rotary Kiln Technology with coal as energy which is specially designof processing local raw materials.


Main Product of MJIS is Sponge Iron, named as Iron Rotary Kiln (IRK). This IRK have 2 specification, IRK 1 with product size 3~25 mm, and IRK 2 with product size < 3 mm. Others product are Return Char and Fly Ash.


MJIS IRK product is intended to meet the raw material needs of PT Krakatau Steel, Domestic & International market.


Uphold impartiality, commitment to rules and regulations, loyalty and sincerity in championing the interests of the company.


Reflects the belief in self-ability and passion for improving knowledge, skills, skills, and mental attitude for sustained performance improvement.


Reflects a strong will and determination to create new ideas and better implementation in improving the quality of work processes and results above the standards.

Our Team

Team Sales Product Iron Rotary Kiln (IRK) Meratus Jaya Iron & Steel, PT

We make the process of selling products easier.

With competitive prices and reliable products, it gives confidence to cooperate with our company from now until the future.

Our Office

We have several offices, namely head office, product processing factory, and marketing representative office

Head Office

ADB Krakatau Steel Jl. Industri No. 5 Cilegon, Banten, Indonesia 42435
Telp: (0254) 372069 / (0254) 372198
Fax : (0254) 372039


Jl.KODECO Km.10, Sari Gadung Village,
Subdistrict. Simpang Empat, Tanah Bumbu, South Kalimantan, Indonesia.

Reprentative Office

Krakatau Steel Building, Lt.2, Jl. Gatot Subroto Kav 54 Jakarta, Indonesia
Telp: (021) 5200688 / (021) 5200962
Fax : (021) 5200747

Contact Us

if you want to contact us, then you can send using the form below,

or you can directly contact us via:
WhatsApp +6281311271770
e-Mail :

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To be the frontline and integrated iron & steel company of international standards using all available local resources to create a competitive advantage in the global market.

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