If the defendant doesn't go, it means that the two sides can't negotiate to determine the appraisal institution, so it will be appointed by the court.
To tell the truth, the vast majority of consultations are not good, because either party will choose an appraisal agency that is beneficial to itself, but the other party will definitely oppose it.
Legal basis: Article 12 1 of the Interpretation of People's Republic of China (PRC) and the Supreme People's Court on the Application of the Civil Procedure Law of People's Republic of China (PRC). If a party applies for identification, it may do so before the time limit for proof expires. The people's court shall not allow the matters applied for appraisal to have nothing to do with the facts to be proved, or the facts to be proved have no probative significance.
If the people's court allows the parties to apply for expert appraisal, it shall organize the parties to determine the appraisers with corresponding qualifications through consultation. If the parties fail to negotiate, it shall be designated by the people's court.