The non-performing loan of 1997 has not been repaid so far, and the statute of limitations is protected by the court. Relevant information shows that according to the provisions of the Civil Procedure Law of People's Republic of China (PRC), the statute of limitations for non-performing loans is protected by the court. If the lawsuit occurred before 1997, it will not be filed after the expiration of 20 years. You should apply to the court for rights protection in time.