Facebook's plan to introduce a cryptocurrency faces a key test Monday as the consortium of companies overseeing it gathers in Geneva.
It was originally made up of 28 so-called founding members, which would have invested $10 million each into the libra cryptocurrency to gain membership and associated voting rights.
But the coalition has been faced with something of an exodus with six key backers — Mastercard, Visa, PayPal, eBay, Stripe and Mercado Pago — abandoning the project amid mounting regulatory fears. Facebook could find comfort in the fact that IBM has said it's open to working with libra.
Facebook deferred to the Libra Association when contacted by CNBC for comment. A spokesperson for the Libra Association was not immediately available.
The libra cryptocurrency would be backed by a basket of currencies like the dollar, and is designed to be used in cross-border payments. But it's been faced with a backlash from global lawmakers and central banks over concerns it could heavily disrupt the financial system.
European heavyweights France and Germany last month threatened to block libra from the EU, while U.S. lawmakers grilled David Marcus, the executive leading Facebook's blockchain initiative, in July. Facebook CEO Mark Zuckerberg is due to face Congress to answer questions on libra next week.
In an interview Monday on CNBC's "Squawk Box," Treasury Secretary Steven Mnuchin said he had told libra representatives that he would take action if the cryptocurrency didn't meet regulatory standards.
Central bankers around the world have also issued warnings to Facebook over its digital currency ambitions. European Central Bank official Benoit Coeure has said the bar for approval of digital assets like libra "will be high," while Bank of England Governor Mark Carney earlier this year said that libra would be met with the "highest standards of regulations."