Spain has mandated banks to help it place a new 30-year bond via a syndication, according to a lead manager memo seen by Reuters on Monday.

Last month, Spain raised 15 billion euros from a 10-year bond sale with a record investor demand exceeding 130 billion euros.

The new transaction will be launched in the near future subject to market conditions, the memo said. BBVA, Citi, J.P. Morgan, Morgan Stanley, Santander and Societe Generale have been picked to sell the bond.

(Reporting by Yoruk Bahceli in Amsterdam, writing by Emma Pinedo in Madrid,)