Yemen has been divided by nearly three years of civil war between an internationally recognised government based in the south and the Iran-aligned Houthi movement which controls the north including the capital Sanaa.
The conflict has unleashed a humanitarian crisis, including a deadly cholera epidemic, and economic collapse which the United Nations says has the potential to cause one of the deadliest famines of modern times.
Authorities sought to boost liquidity by printing money, but the rial plunged from 250 to the dollar to 350 after the first batch of newly printed notes was rolled out last year. The rial traded for 440 to the dollar by year's end and this week crashed to around 500.
A large deposit from Saudi Arabia would give the authorities the financial means to stabilise the currency and make it possible for people to buy food, the government says.
"First and foremost is saving the Yemeni riyal from total collapse, now and tomorrow. Saving the riyal means saving Yemenis from inevitable hunger," Prime Minister Ahmed Obeid bin Daghr said on Twitter.
State news agency Saba quoted government spokesman Rajeh Badi as saying on Monday that the authorities were "intensifying communication" with the Saudis, to "expedite the completion of the Saudi depository procedures".
Saudi officials did not immediately respond to a request for comment about the funds.
Hadi's government officially moved the central bank in 2016 from Sanaa to Hadi's base in the southern port city of Aden. A separate branch still operates in Sanaa under the Houthis.
Both branches suffer from depleted reserves, but they have played a role in mitigating economic pain by paying some public sector salaries, as soaring prices threaten to push basic commodities out of reach for many Yemenis.
The Aden authorities accuse the Houthis of plundering the bank's foreign reserves in Sanaa to fund their war effort, charges the Houthis and the Sanaa bank deny.
(Reporting By Mohammed Ghobari and Noah Browning; Editing by Larry King and Peter Graff)
(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)