【正文】 any other nature entered into a contract acting beyond his scope of authority, unless the other party knew or should have known that he was acting beyond his scope of authority, su act of representation is valid. Article 51 Unauthorized Disposal of Property through Contract Where a piece of property belonging to another person was disposed of by a person without the to do so, su contract is nevertheless valid once the person with the to its disposal has ratified the contract, or if the person lacking the to dispose of it when the contract was concluded has subsequently acquired su . Article 52 Invalidating Circumstances A contract is invalid in any of the following circumstances: (i) One party induced conclusion of the contract through fraud or duress, thereby harming the interests of the state。 (v) The contract violates a mandatory provision of any law or administrative regulation. Article 53 Invalidity of Certain Exculpatory Provisions The following exculpatory provisions in a contract are invalid: (i) excluding one party‘s liability for personal injury caused to the other party。 Partial Invalidation or Cancellation An invalid or canceled contract is not legally binding ab initio. Where a contract is partially invalid, and the validity of the remaining provisions thereof is not affected as a result, the remaining provisions are nevertheless valid. Article 57 Independence of Dispute Resolution Provision The invalidation, cancellation or disarge of a contract does not impair the validity of the contract provision concerning the method of dispute resolution, whi exists independently in the contract. Article 58 Remedies in Case of Invalidation or Cancellation After a contract was invalidated or canceled, the parties shall make restitution of any property acquired thereunder。 if the parties fail to rea a splementary agreement, su term shall be determined in accordance with the relevant provisions of the contract or in accordance with the relevant usage. Article 62 Gap Filling Where a relevant term of the contract was not clearly prescribed, and cannot be determined in accordance with Article 61 hereof, one of the following provisions applies: (i) If quality requirement was not clearly prescribed, performance shall be in accordance with the state standard or industry standard。 if the obligation is delivery of immovable property, performance shall be at the place where the immovable property is located。 (vi) If the party responsible for the expenses of performance was not clearly prescribed, the obligor shall bear the expenses. Article 63 Performance at Government Mandated Price Where a contract is to be implemented at a price mandated by the government or based on government issued pricing guidelines, if the government adjusts the price during the prescribed period of delivery, the contract price shall be the price at the time of delivery. Where a party delays in delivering the subject matter, the original price applies if the price has increased, and the new price applies if the price has decreased. Where a party delays in taking delivery or making payment, the new price applies if the price has increased, and the original price applies if the price has decreased. Article Performance toward a Third Person Where the parties prescribed that the obligor render performance to a third person, if the obligor fails to render its performance to the third person, or rendered nonconforming performance, it shall be liable to the obligee for brea of contract. Article 65 Performance by a Third Person Where the parties prescribed that a third person render performance to the obligee, if the third person fails to perform or rendered nonconforming performance, the obligor shall be liable to the obligee for brea of contract. Article 66 Simultaneous Performance Where the parties owe performance toward ea other and there is no order of performance, the parties shall perform simultaneously. Prior to performance by the other party, one party is entitled to reject its requirement for performance. If the other party rendered nonconforming performance, one party is entitled to reject its corresponding requirement for performance. Article 67 Consecutive Performance Where the parties owe performance toward ea other and there is an order of performance, prior to performance by the party required to perform first, the party who is to perform subsequently is entitled to reject its requirement for performance. If the party required to perform first rendered nonconforming performance, the party who is to perform subsequently is entitled to reject its corresponding requirement for performance. Article 68 Right to Suspend Performance The party required to perform first may suspend its performance if it has conclusive evidence establishing that the other party is in any of the following circumstances: (i) Its business has seriously deteriorated。 Termination If a party suspends its performance in accordance with Article 68 hereof, it shall timely notify the other party. If the other party provides appropriate assurance for its performance, the party shall resume performance. After performance was suspended, if the other party fails to regain its ability to perform and fails to provide appropriate assurance within a reasonable time, the suspending party may terminate the contract. Article 70 Difficulty in Rendering Performance Due to bination Where after effecting bination, division, or ange of domicile, the obligee failed to notify the obligor, thereby making it difficult to render performance, the obligor may suspend its performance or place the subject matter in escrow. Article 71 Right to Reject Early Performance。 Amendment Subject to Approval A contract may be amended if the parties have so agreed. Where amendment to the contract is subject to any procedure su as approval or registration, etc. as required by a