The Italian-Thai Industrial Complex, located at Wihan Daeng in Saraburi Province, about 110 km from Bangkok, was established in 1993 to provide various support facilities to the construction projects of ITD. The Complex's production processes for precast concrete and granite were certified to ISO 9001 in 1997. In addition, all of the production processes of the Complex were certified to ISO 14001, Environmental Management, in May 2001 and also were certified to OHSAS 18001, occupational Health and Safety in April 2008.



  • The Viaduct Segment Factory

    produces precast reinforced concrete box segments for viaducts. Production rate is 10,000 m3 per month.

  • The Tunnel Segment Factory

    produces precast reinforced concrete tunnel segments. Production rate is 5,800 m3 per month.

  • The Reinforced Concrete Pipe Factory

    produces precast reinforced concrete pipes. These pipes were certified to the TIS standard in January 2003. Production rate is 1,000 m3 per month.

  • The Concrete Block Factory

    produces both standard concrete blocks and special blocks, such as ground face concrete blocks. Production rate is 100,000 blocks per month.


Compound B incorporates several factories producing various products for specific construction work requirements. The area of Compound B is 66 ha and it houses the following factories:

  • The Precast Prestressed Concrete Factory

    produces a wide range of precast prestressed concrete elements using both pre - and post - tensioned systems. Production rate is 7,500 m3 per month.

  • The Precast Reinforced Concrete Factory

    produces a range of precast concrete elements for various construction projects. Production rate is 2,500 m3 per month.

  • The Precast Concrete Prefabrication Factory

    produces precast concrete building components such as prefabricated columns, beams, floor slabs, walls and sta irs. Production rate is 400,000 m2 of house floor slabs per year.

  • Formwork shop produces steel formwork, scaffolding, handrail, roof structure and grafing

  • The Glassfibre Reinforced Concrete (GRC) Factory

    produces glassfibre reinforced concrete material for noise barriers and architectural finishes for buildings. Production rate is 170 m3 per month.

  • The Steel Fabrication Shop

    fabricates structural steel components and accessories for construction projects, including high voltage electricity transmission towers and the structural trusses for the Suvarnabhumi Airport Concourse, using Computer Numerically Controlled machinery. Production rate is 1,500 tons per month.

Plant Nursery

The plant nursery located near Compound B, provides trees, shrubs and ground cover plants for environmental and eautification work on ITD construction projects.


Compound C houses the following factories:

  • The Concrete Sleeper Factory produces reinforced concrete sleepers for railway projects. Production rate is 50,000 units per month.
  • the Asia Turnout Factory

The Asia Turnout Factory, a Joint Venture company between Vossloh Cogifer and Italian-Thai Development Public Company Limited produces turnouts for railway project supply in Thailand and the Southeast Asia region. Production rate is 35 sets per month.

Quarry and Material
Processing Plant

The quarry located at Khao Noi in the Wihan Daeng district supplies good quality rhyolite for railway ballast and concrete aggregates for construction projects. Production rate is 120,000 m3 per month.