The prospective bidders are: Japan’s JGC Corporation; Italy’s Snamprogetti; Paris-based Technip-Coflexip; Canada’s SNC Lavalin; Germany’s Uhde; and Spain’s Tecnicas Reunidas.

The Yanbu unit, which is expected to cost $250 million-300 million, will have a capacity of 95,000 barrels a day (b/d). The smaller Riyadh hydrotreater, priced at $150 million-200 million, will have a capacity of 45,000 b/d.

The client is Saudi Aramcoand the consultant is the US’ Foster Wheeler.