Names of the EFT/Debit Card Network(s) that operate in Korea. 

Definition of EFT/Debit Card Network:
An EFT/Debit Card Network processes debit card transactions for the
banks.  Some EFT/Debit Card Networks work with merchants to process
debit cards used at merchant locations, others work with ATM owners to
process debit cards used to withdraw cash from the ATM, while some so
both of these activities.
Note that I do not need information regarding Discover/Pulse,
MasterCard, or Visa.  These companies have debit networks but I am
only interested in those EFT/Debit Card Networks that are owned and
operated locally.


Extra credit
names of member banks, web addresses, any additional data you can
collect including:

owned and operated by the government?
Number of ATMs it operates
Number of merchant locations it processes debit card transactions for
Number of transactions it processes (e.g. monthly, annually)
The purchase volume it processes (e.g. $X million US Dollars annually)