Borouge, a joint venture between Abu Dhabi National Oil Co., or ADNOC, and Borealis AS, granted a project management contract for its Ruwais petrochemicals complex in the United Arab Emirates to Australia's WorleyParsons Ltd. for an undisclosed amount, according to a March 20 release from the Australian Securities Exchange.

Under the deal, the Australian engineering services firm will help support the fourth phase of the petrochemicals complex.

The complex is said to contain "the world's largest" mixed feed cracker with an ethylene output capacity of 1.8 million tonnes per annum as well as an olefins and aromatics production capacity of 3.3 million tonnes per annum. Feedstocks used in the complex including ethane, butane and naphtha are sourced from ADNOC's refining and gas processing facilities.