You cannot actively apply for a Citi Black Card. Only users actively invited by Citibank can apply for a Citi Black Card. The Citi Black Card is Citibank's highest-level credit card, with credit card limits starting at RMB 1 million. The primary and secondary cards receive eight free express international airport customs clearance services per year, and enjoy the buy-one-get-one-free gift for airline business cars on international routes and aviation accidents worth RMB 16 million. In addition, Citibank will also equip black card users with a personal advisory team to meet the various needs of users.