Appellate Court Rejects Introduction of Post-Judgment Facts Modifying Claim Basis

In a dispute between online platform operators regarding alleged content piracy, the appellants attempted to introduce new facts based on updated terms of service implemented during the appeal proceedings to support their existing claims against the appellee. The appellate court refused to consider these new submissions, reasoning that while parties may introduce new evidence under the relevant procedural law, the introduction of an entirely new factual event that arose during the appeal stage constitutes an inadmissible modification of the action, as it presents a factual complex substantially different from that adjudicated in the first instance, which is barred by the rule concerning the amendment of claims.