Yes - FM doctrine exists pursuant to article 180 and article 590 of the PRC Civil Code, which came into effect on 1 January 2021 and replaced and superseded the prior article 180 of the PRC
General Rules of the Civil Law and Article 117 and Article 118 of the PRC Contract Law.
Where a contract contains FM provisions, the provisions will apply to the extent that they do not conflict or derogate from the statutory principles.
Doctrine of change of situation: