The third train facility would be located next to existing NGL trains at Ruwais, it said, adding that the entire project facility includes a process train, product storage tanks, a jetty with two berths as well as utilities.
"While the products - propane, butane and pentane-plus - would be exported, ethane shall be transported to the nearby petrochemical complex as feedstock," the firm said.
GASCO, a unit of Abu Dhabi National Oil Co (ADNOC), is leading a drive to boost gas production from the oil-rich Gulf Arab state of the United Arab Emirates.