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More than 50 Years of Steel Making


Overview About Us

Inter World Steel Mills Indonesia was founded 50 years ago as the first steel company to produce strip plates in Indonesia. Our first factory was located in North Jakarta, occupying a land area of 4.6 hectares. With this development in production, we continue to commit to becoming the best supplier of steel to various government construction industry projects and famous high-rise buildings in the metropolitan city of Jakarta and around Indonesia.

As a trusted steel supplier, our team of experts can help recommend all the needs that are suitable for you.

  1. 1971

    Establishment of Inter World Steel Mills Indonesia

    One of the earliest fully operating steel mill in Indonesia. 

  2. 1975

    The second Rolling Mills was comissioned in North Jakarta factory, producing the first angle bar in Indonesia.

  3. 1982

    Inter World Mills again pioneered the Indonesian steel industry by starting production of steel channel bars.

  4. 1990

    Acquired 150,000 square meters of new land in Tangerang and installation of the first Electric Arc Furnace in Indonesia, with a inital steel making capacity of 25MT per heat, designed by NKK Japan and Continuous casting machine by Danieli, Italy. 

  5. 1994

    New state of the art Rolling Mill from Danieli, Italy was comissioned, propelling Inter World Steel Mill to be one of the largest Steel Mill in Indonesia with total steel rebar production capacity of 300,000 MT per year.

  6. 2001

    The EAF steelmaking capacity was increased from 25 MT to 30 MT, resulting in total steel Billet production of 200,000 MT per annum. 

  7. 2012

    Successfully commissioned the second high frequency Rolling Mill in Inter World's Tangerang factory. 

  8. 2013

    Purchased 23,000 square meters of additional land adjacent to the Tangerang factory for future production need. To date Inter World Steel Mill have production capacity of up to 800,000 MT per year.


Produce world class steel products that surpass our customers’ need today and for the future.


Provide high quality steel solutions for our customers in a safe, reliable and valuable manner.

We build on a longstanding heritage of innovation to create high-quality steel solutions that surpass our customers’ needs.

To attract and nurture the best people to deliver superior steel products to our customers.


Our sales team will happily discuss your needs.

address icon KEM Tower 18th floor
Jl. Landasan Pacu Barat Blok B10 Kav.2
Kota Baru Bandar Kemayoran
Jakarta 10610, Indonesia
phone icon (+62 21) 6570 3888 / 6570 3988
mail icon sales@iwsteel.com