The European Commission, the executive arm of the European Union, has called on member states to fully implement the new tax transparency and information exchange rules on crypto-assets, saying it will send formal notices to 12 countries for failing to do so, which came into force on January 1.

Meanwhile, in a separate notice, the Commission requested a response from Hungary on its failure to comply with the EU’s Markets in Crypto-Assets (MiCA) regulation, after the country passed an amendment…