Japan’s JGC Corp said it has been awarded a contract to build an aromatics plant for Sadara Chemical Co, a joint venture between Saudi Aramco and Dow Chemical Co.

“The lump-sum turnkey contract calls for engineering, procurement and construction services for an aromatics plant in Saudi Arabia’s Jubail region,” the Japanese engineering firm said in a statement.

The company declined to disclose the value of the deal to provide the plant, which is set for completion in the second half of 2014.

JGC is also among a 20-strong pack of international engineering firms bidding to build a multi-billion-dollar refinery for Saudi Aramco in Jizan province, sources close to the bidding have said.

Sadara will construct, own and operate a world-scale integrated chemicals complex in Jubail Industrial City II in Saudi Arabia’s Eastern Province. Once completed, it will represent the largest petrochemical facility ever built in a single phase. Sadara’s world-scale integrated complex will produce over 3 million tonnes of performance, value-added chemical and plastics products. The key product families are amines glycol ethers, isocyanates, polyether polyols, polyethylene, polyolefin elastomers and propylene glycol.

The complex will consist of 26 manufacturing units with all units operational in 2016.

Sadara and the adjoining PlasChem Park will establish a world-scale manufacturing footprint that delivers a full range of value-added, performance products destined for the emerging markets of Asia Pacific, the Middle East, Eastern Europe and Africa.

Last June, Jacobs Engineering Group won an EPC management contract for three polyethylene trains for Sadara.

Also recently, German Linde Group announced plans to invest around $380 million into the complex. It recently signed a long-term contract to supply Sadara with carbon monoxide, hydrogen and ammonia at the upcoming complex.

It will build a facility for the production of CO and H2 plus an ammonia plant.