Trademark Application Fee
Trademark application fee includes an official fee to be paid with Patent Office and a service fee to be paid to a legal representative (i.e., patent attorney). If one is going through trademark application procedures from filing to registration without any help of patent attorney, only official fee is needed to be paid. Whereas, if the prosecutions are conducted with the help of a patent attorney, both the official fee and attorney service fee need to be paid.
Official Fee
Basic filing fee for trademark application is 56,000 KRW (Korean Won) for each class. And registration fee covering 10 years is 211,000KRW for a single class. For every additional class, 211,000KRW is added.

No exemption of official fee is allowed for trademark application unlike patent or design applications.

More details of official fees can be referred in the following website.
Attorney Service Fee
Attorney service fee is paid for professional works done by patent law firm for prosecution of trademark application. V.A.T is usually added to the attorney service fee. The attorney service fee is categorized as application filing fee, responding fee to Office Actions and contingent fee.
Application Filing Fee
Application filing fee is charged for preparing and filing application documents
Fee for Responding to Office Actions
When an examiner found grounds for rejection during examination, Notice of Preliminary Rejection will be dispatched to the Applicant (or the representing patent attorney). The Applicant should respond to the Office Action by preparing and filing Amendment and Argument to overcome the grounds for rejection. Attorney service fee for responding Office Actions is incurred in this stage
Contingent Fee
Contingent fee is charged when the application is successfully registered, although not charged if decision of rejection is finally made. Usually 100% of a basic filing fee is charged as the contingent fee.