CONTENTS
- 1. Public Contracts | Definition and the Need for Legal Response

- - Differences From Private Contracts
- - Businesses That Should Take Note
- 2. Public Contracts | Principal Statutes and the Basic Structure of a Contract

- - Principles of the Contract
- - Methods of Concluding a Contract
- - Payment of Consideration and Liquidated Damages for Delay
- 3. Public Contracts | Frequently Occurring Types of Disputes

- - Bidding Stage
- - Contract Performance Stage
- - Disputes Over Payment and Liquidated Damages for Delay
- - Sanctions Against Unfair Business Operators
- - Criminal Matters
- 4. Public Contracts | Points Frequently Overlooked in Practice

- - Missing the Time to Apply for Adjustment of the Contract Amount
- - Accepting Unfair Special Terms as They Are
- - Failing to Apply for an Extension When Grounds for Delay Arise
- - Missing the Deadline to Object After a Disposition Imposing Sanctions as an Unfair Business Operator
- 5. Public Contracts | Daeryun's System of Pre-Dispute and Post-Dispute Support

1. Public Contracts | Definition and the Need for Legal Response
A public contract is one entered into with a state agency, a local government, a public institution, or a similar body as a party to the transaction.
These contracts arise across every sector and form, including construction and civil engineering works, the defense industry, IT services, the supply of goods, and the entrustment of research and development. In 2024, the volume of public procurement in Korea reached a record high of 225.1 trillion won.
Differences From Private Contracts
Under case law, public contracts share the same legal nature as private contracts, yet in practice they often differ in several respects.
Separate statutes such as the State Contracts Act and the Local Government Contracts Act apply, as special laws, in priority over the Civil Act and the Commercial Act, and the entire course of the contract, including the bidding method, the conclusion of the contract, the payment of consideration, and the rescission of the contract, is regulated in detail by statute.
Amendments to the relevant statutes, shifts in case law, and changes in authoritative interpretations also occur frequently, so there can be limits on how any given response is framed.
Businesses That Should Take Note
Legal issues involving public contracts are not confined to particular industries.
∙ Manufacturing and distribution companies that supply goods and equipment to the government and public institutions
∙ Defense industry contractors that conclude defense contracts with bodies such as the Defense Acquisition Program Administration
∙ IT companies that are awarded contracts for the construction and operation of IT systems for public institutions
∙ Institutions and companies that undertake national research and development (R&D) projects, among others
Beyond these, any company that enters into a contract with a public institution or similar body may need to respond.
2. Public Contracts | Principal Statutes and the Basic Structure of a Contract

Public contracts are governed primarily by the State Contracts Act (the "Act on Contracts to Which the State Is a Party"), and various statutes apply depending on the contracting party and the type of contract, including the Local Government Contracts Act, the Defense Acquisition Program Act, and the Act on the Management of Public Institutions.
Principles of the Contract
A public contract must be formed by the agreement of the parties on an equal footing, and it must be performed in accordance with the principle of good faith.
The public official in charge of the contract must not impose special terms or conditions that unfairly restrict the interests of the contracting party, and the parties must enter into an integrity contract, by which they undertake not to give or receive money, goods, or entertainment throughout the bidding, contracting, and performance process.
Methods of Concluding a Contract
Public contracts are, as a rule, conducted by open competitive bidding.
That said, limited competitive bidding, designated competitive bidding, and private contracts are permitted depending on the purpose, nature, and scale of the contract.
The contract must set out its purpose, the contract amount, the performance period, the contract guarantee deposit, the allocation of risk, and liquidated damages for delay, and it becomes final when the public official in charge and the contractor affix their names and seals.
Payment of Consideration and Liquidated Damages for Delay
The consideration for the contract is paid after the inspection is completed or after the inspection report is prepared.
If performance is delayed without justifiable grounds, liquidated damages for delay are imposed and may accumulate up to a maximum of 30% of the contract amount.
By contrast, delay caused by the fault of the ordering agency or by force majeure is excluded from the count of delay days, so whenever performance is delayed, the cause must be examined carefully to determine which party it is attributable to.
3. Public Contracts | Frequently Occurring Types of Disputes
Disputes over public contracts take many forms across the entire process, from the bidding stage through performance of the contract and into the period after completion or delivery.
Bidding Stage
Common examples include unfairness in the bidding procedure, the unlawfulness of a decision on the successful bidder, and dispositions that restrict eligibility to participate in bidding.
When a party objects to the bidding result, the conclusion of the contract itself is sometimes contested through an application for a provisional injunction.
Contract Performance Stage
The leading causes of disputes include adjustment of the contract amount due to design changes or price fluctuations, the unilateral suspension of works or refusal of delivery by the ordering agency, and conflicting views over how the contract conditions should be interpreted.
Disputes Over Payment and Liquidated Damages for Delay
Delayed payment of consideration after completion or delivery, nonpayment of progress payments, and the imposition of excessive liquidated damages for delay are the kinds of dispute that arise most often in practice.
Sanctions Against Unfair Business Operators
When a party receives a disposition imposing sanctions as an unfair business operator on grounds such as defective or improper conduct, collusion, or the forgery or alteration of documents while performing a contract, the result can be exclusion from the entire public procurement market.
Criminal Matters
Collusion in the bidding process and the offering of bribes to the public officials involved can lead to criminal punishment, and there are many cases in which administrative and civil disputes and a criminal investigation proceed at the same time.
4. Public Contracts | Points Frequently Overlooked in Practice

Disputes over public contracts often stem from the complacent assumption that "there will be no problem as long as the work (or delivery) is done well."
The following are representative situations that turn problematic in actual practice.
Missing the Time to Apply for Adjustment of the Contract Amount
Even where grounds for adjustment of the contract amount, such as a design change or price fluctuation, have arisen, a party that fails to apply before receiving the consideration for completion may find its right restricted or difficult to have recognized.
As soon as a ground for adjustment arises, the party should confirm whether the requirements are met.
Accepting Unfair Special Terms as They Are
Even when the contract conditions presented by a public institution include provisions that unfairly restrict the interests of the contracting party, those provisions are often simply accepted.
The lawfulness of the special terms should be examined before the contract is concluded.
Failing to Apply for an Extension When Grounds for Delay Arise
Even where grounds for extending the contract period exist, such as a natural disaster or fault on the part of the ordering agency, the period cannot be excluded from the calculation of liquidated damages for delay unless the application is made in writing within the deadline.
Missing the Deadline to Object After a Disposition Imposing Sanctions as an Unfair Business Operator
To contest a disposition imposing sanctions as an unfair business operator, a party must file a request for administrative adjudication or an administrative lawsuit within 90 days from the date it became aware of the disposition.
Once this deadline passes, the disposition can no longer be contested.
5. Public Contracts | Daeryun's System of Pre-Dispute and Post-Dispute Support
Disputes over public contracts often unfold through a combination of administrative, civil, and criminal procedures.
From unfairness at the bidding stage, through disputes during performance of the contract, sanctions against unfair business operators, and claims for damages, resolving only one of these usually does not bring the matter to an end.
It helps to see the whole picture from the early stage and to set a response strategy.
Preventive Measures
∙ Advance counsel on whether the requirements for adjustment of the contract amount or extension of the contract period are met
∙ Review of the lawfulness of the contract performance structure, including subcontracting and re-entrustment
∙ Diagnosis of collusion risk and counsel on establishing an internal compliance system
Post-Dispute Response
∙ Response to disputes over adjustment of the contract amount, progress payments, and claims for the consideration for completion
∙ Objections and litigation against the excessive imposition of liquidated damages for delay
∙ Requests for administrative adjudication and administrative lawsuits, and applications for a stay of execution, against dispositions imposing sanctions as an unfair business operator
∙ Response to criminal investigations relating to collusion and bribery and to investigations by the Fair Trade Commission
∙ Claims for damages arising from the rescission or termination of a contract, and defense against such claims
In public contracts, amendments to the relevant statutes and shifts in case law are frequent, and strict procedures and deadlines apply at each stage of the contract.
It helps to review the situation with a professional at an early stage, when warning signs first appear.
Daeryun Law Firm has many attorneys with experience in disputes relating to public contracts and in responding to administrative dispositions.
If you require legal counsel in connection with a public contract, you can assess your case through a 🔗corporate attorney legal consultation booking.











