The mall can't refuse to renew the contract. If the lease contract signed by both parties has an agreement on the expiration of the contract, it needs to be handled in the agreed way. If there is no special agreement, the contract will terminate upon expiration, and the lessor can take back the house and vacate the house within a reasonable period of time for the merchant.
[Legal Basis]
In Article 562 of the Civil Code, the parties may terminate the contract if they reach consensus through consultation.
The parties may agree on the reasons why one party terminates the contract. When the cause for terminating the contract occurs, the person with the right to terminate the contract may terminate the contract.