Engineering group DRA has won a contract with Saudi Arabia's mining group Ma'aden Gold and Base Metals (MGBM) for the Ad Duwayhi gold mine, according to a report.

The mining project, located 450km southwest of Riyadh, will be performed using open-pit methods, said the Saudi Gazette report.

The operation will have a conventional gold extraction process plant with crushing and milling facilities, and gravity concentration, as well as smelting facilities to produce gold doré on site, it said.

MGBM has opted to engage the services of the minerals processing company DRA to operate and maintain the plant.

DRA is set to deploy specialists to Saudi Arabia whose responsibilities will include pre-commissioning the plant, said the report.

The company's operations team will take responsibilities for process engineering, specialist maintenance, asset management safety as well as training, it added.