Postal code: 200083

Telephone switchboard: 02 1-65425300

President's office: 02 1-6542487 1, 02 1-6542956 (fax)

Editor: 021-35051290,021-35051287 (fax)

Marketing department: 02 1-55385057, 02 1-65424735 (fax)

Printing department: 02 1-65422896, 02 1-65425300-4044 (fax)

Mail order group: 65425300-2035/2036, 02 1-5539 1906 (fax)