The fund, Liberty Strategic Capital, will be backed by SoftBank's $40 billion second Vision Fund and Abu Dhabi-based sovereign wealth fund Mubadala, which said it will contribute roughly 2% of the total amount raised so far.

Liberty Strategic Capital was launched this year and is based in Israel, according to startup data platform PitchBook https://pitchbook.com/profiles/investor/469990-18#overview.

The Financial Times https://www.ft.com/content/24da1d88-8e63-4868-849f-3e3ecff1c39a had earlier reported that Saudi Arabia's Public Investment Fund (PIF) will also take part in the investment.

PIF did not immediately respond to Reuters' request for a comment, while Reuters could not immediately reach out to Liberty Strategic Capital.

Bloomberg News, which first reported about the Mnuchin fundraising this week, said https://www.bloomberg.com/news/articles/2021-09-20/trump-treasury-secretary-steven-mnuchin-raises-2-5-billion-fund?sref=SCAzRb9t most of the backing came from Middle Eastern investors including the PIF.

(Reporting by Aakriti Bhalla in Bengaluru, Davide Barbuscia in Dubai and Sam Nussey in Tokyo; Editing by Sherry Jacob-Phillips)