"The company is ready for listing in 2018 when the decision is taken on the listing venue," Nasser told reporters at the company's headquarters.

"We want to see if there is going to be a listing in another market (in addition to the Saudi Tadawul). There is a committee that is formed that looks into it and whenever the decision is taken the company is ready to implement."

The sale of up to 5 percent of Saudi Aramco [IPO-ARMO.SE], is a centrepiece of Vision 2030, an ambitious reform plan to reduce the economy's dependence on oil.

Nasser said the plan remains to list the whole company rather than creating a subsidiary to IPO.

(Reporting by Reem Shamseddine and Stephen Kalin; writing by Rania El Gamal; editing by Jason Neely)