Any person who provides, in the name of or on behalf of a customer, one or more of the following services:

• the exchange between virtual assets and fiat currencies, including the service of exchange between virtual currencies and fiat currencies;
  
• the exchange between one or more forms of virtual assets;
• the transfer of virtual assets;
• the safekeeping or administration of virtual assets or instruments enabling control over virtual assets, including the custodian wallet service;
  
• the participation in and provision of financial services related to an issuer’s offer or the sale of virtual assets.