PT. Mills & Mines International — Prestressed Concrete Steel & Structural Systems
PT. Mills & Mines International
PT. Mills & Mines International

The strength inside every structure

Every bridge that carries a nation and every tower that shapes a skyline depends on steel it never shows. Since 2011, we have supplied that steel — and the systems that put it to work — across Indonesia and 63 countries beyond.

Explore the product range MCI Construction
2011
Incorporated in Jakarta
63
Countries reached by our PC strand
4
National rail & toll programmes served
5
International standards adhered to

Built on What Lasts

The Group / Since 2011

We began where structures begin — in the steel. Incorporated in Jakarta in 2011 as a supplier of PC bar, PC wire and PC strand, PT. Mills & Mines International grew from a materials house into a group that supports heavy construction at every stage: supplying prestressing systems, transferring the technical know-how to use them, and managing the flow of the raw commodities that construction consumes.

That breadth is deliberate. A partner backed by diversified operations does not disappear mid-project, and does not depend on a single commodity cycle. It is why the MRT Jakarta Railway, the Jakarta LRT, the Jakarta–Bandung High-Speed Rail and the Kualanamu Toll Road have all been built with our involvement.

Integrity
Professionalism
Ethics
Kindness
Accountability

Effective and efficient construction solutions, through superior products, to international standards.”

Our commitment since 2011
Vision
The leading corporation in infrastructural solutions, resources management and distribution.
Reach
Domestic and international heavy-construction markets.

Three Ways We Deliver

Operations
Macro of seven-wire PC strand cross-sections
01
Supply & Installation

Prestressing steel and complete structural systems — PC bar, wire and strand, post-tensioning, bearings, joints and cables — manufactured to grade and delivered to programme.

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Engineers supervising girder stressing works
02
Technical Support

Consulting and engineering know-how for the heavy-construction industry — from tendon design review to stressing supervision — carried on site by MCI Construction, our delivery division.

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Haul trucks moving material at a mine site
03
Distribution & Management

Natural-resources management and distribution for the commodities construction runs on — coal, sand and limestone — moved at the scale national programmes demand.

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Nine product categories, one discipline: steel and systems that hold their stated performance for the life of the structure. Manufactured to ASTM, EN, JIS, GB/T and CSA grades.

Trusted With National Work

Programmes / 2014—2024
High-speed rail track-slab production line
Rail / 2020
Jakarta–Bandung High-Speed Rail

One complete track-slab production line prepared and supplied; 100 sets of sleepers produced and delivered for the near-station segment.

Aerial view of the Medan–Kualanamu–Tebing Tinggi toll road interchange
Urban Rail & Road
MRT Jakarta · LRT · Kualanamu Toll

Prestressing supply and stressing supervision across the programmes that move Greater Jakarta and North Sumatra.

Our Partners

Delivered alongside since 2011

The contractors, precasters, state enterprises and manufacturers we have supplied and built with — across Indonesia and in partnership abroad.

Adhi Persada Beton
Adhi Karya
WIKA KOBE
Bukaka Teknik Utama
PS Construction
Taisei Corporation
Leviat
Nusa Raya Cipta
ESC Group
Silvery Dragon
Hutama Karya
HKSIS
Nindya Karya
WIKA Gedung
CSCEC
Mayora
OVM
Petrosea
Saipem
Colas
Waskita Precast
Adhimix PCI
Kerinci Hydropower
Poso Energy
Contact / The Group

Start the Conversation

Supply programmes, distribution partnerships, joint ventures and investment — one office, one accountable point of contact.

A.Sentra Industri Terpadu, Pantai Indah Kapuk
Blok E2 No. 25, Jakarta 14470, Indonesia
+62 811 9999 544 · Mon–Fri, 08.00–17.00 WIB
Building or bidding?

Construction and infrastructure procurement runs through our delivery division. MCI Construction answers for post-tensioning, seismic protection, cable systems and monitoring — on site, to standards.

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PT. MILLS & MINES INTERNATIONAL — Jakarta, Indonesia
We strive to deliver more for a better future.
© 2026