Work in Progress, Net

12 Months Ended

Dec. 31, 2019

Text block [abstract]

Work in Progress, Net

11 WORK IN PROGRESS, NET

At December 31 this account comprises:

	Total				Current				Non-current
	2018		2019		2018		2019		2018		2019
Unbilled receivable concessions in progress		32,212		23,117		—		—		32,212		23,117
Work in progress		28,538		49,457		28,538		49,457		—		—
		60,750		72,574		28,538		49,457		32,212		23,117

The ongoing work costs include all expenses incurred by the Group under construction contracts currently in force. The Group estimates that all the cost incurred will be billed and collected.

Below is the work in progress grouped by the main projects:

	2018		2019
Infrastructure
Road operation and maintenance		32,212		23,117
		32,212		23,117
Engineering and construction
Engineering and Construction Works - GYM Chile S.p.A.		13,007		19,531
Talara Refinery		—		20,126
North Concentrator Plant of Quellaveco		—		1,033
Others		15,531		8,767
		28,538		49,457
		60,750		72,574