File Photo: A Subway train waiting in Nasser Station on the third line Phase. Photo courtesy of The Arab Contractors website.
The decree was published in the Official Gazette on Thursday.
The loan agreement, signed in December 2022, was approved by parliament in April 2023.
Under the agreement, the loan will be repaid at a 0.1 percent annual interest rate over 30 years with a 10-year grace period.
Upon completion, the 42-kilometre fourth line will have the capacity to transport 2 million passengers daily.
It will run through 38 stations including between 6 October city and the Great Pyramids area.
The fourth line is scheduled to start operating in February 2028.