Crypto exchange Bitpanda said it had secured a Markets in Crypto Assets (MiCA) license from Germany’s Federal Financial Supervisory Authority (BaFin), and rivals OKX and Crypto.com said they received accreditation from Malta as the EU’s licensing scheme opens the doors to the 30 nations that make up the European Economic Area (EEA).

The MiCA rules came into effect at the end of last year and allow licensees to operate across the EEA without having to secure approval from all countries. The area includes the 27 EU nations with Iceland, Liechtenstein and Norway.

Austria-based Bitpanda had 6 million users in December and will use the license to accelerate its growth, it said.

“This milestone enables us to bring easy and secure investment to over 450 million people and unlock unparalleled growth potential in a market we are poised to fully conquer,” Eric Demuth, CEO and co-founder of Bitpanda, said in a statement .

The companies join Boerse Stuttgart Digital, which was awarded the first license by the German regulator. MoonPay, BitStaete, ZBD and prime brokerage and clearing firm Hidden Road have also received MiCA licenses.

The approval means “we can streamline operations to ensure both compliance and seamless cross-border activity,” Crypto.com COO Eric Anziani said in an emailed statement.

UPDATE (January 27, 10:33 UTC): Adds description below the title.

UPDATE (January 27, 12:53 UTC): Rewrites heading, second bullet and first paragraph to add OKX.

UPDATE (January 27, 13:19 UTC): Adding Crypto.com, the European Economic Area.