Qatar Railways Company (Qatar Rail) has received final prices from the groups bidding for the contract to supply and install the systems, rolling stock and track work for the first phase of the Doha metro network.

The revised prices include a lump sum price for the depot. Earlier bids included a provisional sum for these works.

The groups competing for the deal are Germany’s Siemens; a team of Italy’s Ansaldo STS and Spain’s CAF; a group of three Japanese companies – Mitsubishi, Hitachi and Kinkyshario, and France’s Thales. The initial prices were submitted in March.

The six-year contract covers the design, integration, manufacturing, supply, delivery, testing and commissioning of the trains and other required equipment.

In late April, Qatar Rail formally awarded the estimated QR12bn ($3.3bn) deal to build the underground sections of the Doha Metro’s Gold Line to a consortium of Greece’s Aktor, Turkey’s Yapi Merkezi and STFA, India’s Larsen & Toubro and the local Aljaber Engineering.

Earlier in March, Qatar Rail awarded a $700m contract to build a section of the Doha Metro’s Red Line to a consortium of Spain’s FCC, Geneva-registered Archirodon Construction, Turkey’s Yuksel, and the local Petroserv .

The work includes building three stations at Barwa Village, Al-Wakrah and Qatar Economic Zone, and a 7-kilometre-long section of elevated metro line. The contract duration is 31 months.

The Doha Metro was one of the region’s most active projects for contract awards in 2013. In late May and early June, Qatar Rail awarded construction deals for underground sections and two stations.

The estimated QR8bn Red Line South underground sections construction package was awarded to a consortium of the local/French QDVC, South Korea’s GS Engineering & Construction and the local Darwish Engineering.

A team of Austria’s Porr, Saudi Binladin Group and the local HBK Contracting Company won the estimated QR8bn deal to build the underground sections for the Green Line.

The estimated QR8bn contract for the Red Line North underground sections was secured by a consortium of Italy’s Impregilo, South Korea’s SK Engineering & Construction and the local Galfar al-Misnad Engineering & Contracting.

South Korea’s Samsung C&T, Spain’s OHL and Qatar Building Company won the estimated QR4bn deal to build two major stations at Msheireb and Education City.