Construction of Karbala oil refinery in South Karbala province, around 100km away from Iraq's capital Baghdad, started in February 2014. The refinery, being built on a 6km² plot of land, will produce liquefied gas, gasoline, gas oil, fuel oil, jet fuel and asphalt. The oil produced at the refinery will meet international standards equivalent to European production, and will serve the growing domestic demand for oil in Iraq.

The State Company for Oil Project (SCOP) appointed Refinery of Karbala Corporation (RKC) to execute the project under Build, Own and Operate (BOO) terms in July 2011.

The oil refinery is being developed as part of a joint collaboration between ATCONZ and Invest International, as well as the joint development agreements signed by the Italian and Iraqi governments. The facility will have a refinery capacity of 140,000 barrels of crude oil per day (bpd) when it opens in 2019. The refinery's construction is expected to be completed in 54 months with an estimated investment of $6.04bn.

The joint venture led by Hyundai Engineering & Construction (HEC) with GS Engineering & Construction and SK Engineering & Construction was awarded the engineering, procurement & construction contract to build the refinery in April 2013. GS Construction is responsible for chemical equipment including vacuum distillation units, while SK Construction will be in charge of utilities. The Hyundai subsidiaries will be responsible for providing petroleum processing facilities.

Since then, KMSK worked with the EPC awarded joint venture led by Hyundai Engineering & Construction (HEC) with GS Engineering & Construction and SK Engineering & Construction.

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Some of the main projects that KMSK constructed and working on are:

•PKG 6 buildings construction;

•24 and 18 waste water GRE pipelines;

•Temporary facilities, camps;

•Temporary facilities, warehouse;

•Temporary facilities, workshops;

•Storage facilities.

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KMSK holds established facilities within the project area an involved many other projects with the JV.