How to enable TDE configuration for new PDB only

Hi Team

I have a container database with 1 pluggable database where TDE is already configured on Oracle Key Vault appliance. I recently added a new pluggable database (PDB2). How to configure or sync TDE configure to the new pluggable database. The status show as "OPEN_NO_MASTER_KEY" for new PDB as marked below.

SQL> show pdbs

  CON_ID CON_NAME            OPEN MODE RESTRICTED

---------- ------------------------------ ---------- ----------

     2 PDB$SEED            READ ONLY NO

     3 UAMOI             READ WRITE NO

     4 PDB2              READ WRITE NO

SQL> set lines 130

select WRL_TYPE, STATUS, WALLET_TYPE, CON_ID

from v$encryption_wallet;SQL>  2

WRL_TYPE       STATUS             WALLET_TYPE       CON_ID