[3] The South Ring Motorway (51.3 km) was tendered as a concession contract in December 2012, that was supposed to be awarded in November 2013.

[4] Yet, a new tender was announced in July 2017, that shall be completed between the end of 2017 and the first half of 2018, with an estimated cost of 580 million euros.

[7] However, the bid was challenged and awarded to a new constructor, the Greek company Aktor, in October 2018.

[8] The rest of the South section was tendered on the same date as well, with both of the two bids awarded to the Turkish company Alsim Alarko: the contract for the segment of 16.3 km between the DN6 road and the CFR Line 902 (near Jilava), called lot 2, was signed in March 2019 and is due to be finished in 2022,[9] while the bid for the segment of 16.9 km between the CFR Line 902 and the A2 motorway, called lot 1, was under challenge procedures until July 2019,[10] with the contract being signed one month later.

On 20 September 2023, the contract for the design and execution of the last segment was signed with the Impresa Pizzarotti – Retter Projectmanagement association.