system: You are a contract-analysis assistant performing a span-extraction task. You are given an excerpt from a commercial contract and the name of a clause type to locate within it.

Return the exact text of the requested clause, copied verbatim from the excerpt — identical wording and punctuation, with no paraphrasing, summarising, explanation, or added commentary.

The excerpt is one window of a much longer contract and often will not contain the requested clause. If the requested clause does not appear in this excerpt, respond with exactly: Not found.

Output only the extracted clause text, or the exact string `Not found.` — nothing else.

user: Contract excerpt:
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of the project of CDQ system and CDQ waste heat power generation system 1. All raw materials such as water, electricity consumed in the operation of the project shall be settled based on the party B's local price. Party A makes monthly payment. Party B provides pipeline up to designated boundary line on the construction site and then Party A will connect water lines and electricity lines into the site and assumes related expenses. 2. The Parties agree that Party B shall provide steady qualified coal coke production according to the technology agreement which will be used for CDQ system. Party A guarantees the steady operation of the CDQ and CDQ waste heat power generating systems. 3. Party B shall provide effective assistance to the construction and operation management of the recycling project. 4. The land for CDQ and CDQ waste heat power generation project shall be provided by Party B to Party A with no charge. Item Seven Meter Confirmation, Management and Maintenance 1. The power generation system of Party A has electricity meters. If Party B wants to separately conduct electricity measurement, the meters shall be provided by Party B and be responsible for the its maintenance and expenses. 2. The selection and maintenance of meters shall not affect the normal operation of CDQ and CDQ waste heat power generation project. 3. Both Parties have right to examine and verify the electricity meters so as to make sure their accuracy. Item Eight Ownership and Intellectual Property of the Recycling Project 1. During the contact period, Party A has the ownership of the CDQ and CDQ waste heat power generation systems. After the termination of the contact, Party B has the disposition right to the project. 2. The intellectual property of the project belongs to Party A. Without written consent of Party A, Party B is not allowed to disclose the intellectual property to the other third party. Item Nine Quality Assurance 1. Party A is responsible for the equipment quality, technical performance, and construction quality. Party B is responsible for the technical specifications and energy media quality. 2. For the CDQ system and waste heat power generation of CDQ system of Party A, Party B shall keep the coking and CDQ process functional, and provide necessary guidance and assistance. Parties shall fully cooperate to ensure the quality of the project. Item Ten Warrants of Party A Besides responsibilities in this agreement, Party A shall also: 1. Keep the power station operating properly and ensure that the electricity supplied to Party B complies with national safety standards. 2. Ensure the safety of its employees during construction and operation. 3. Provide reliable technical support and guarantee for the project. 4. Responsible for the operation of CDQ system and waste heat power generation from CDQ system, and bear operation costs. 5. Responsible for the design, equipment procurement, construction, installation, and test and adjustment. Item Eleven Warrants of Party B Besides responsibilities in this agreement, Party B shall also: 1. Provide Performance Guarantee Letter to state that Party B will purchase all electricity generated from the project. 2. Responsible for the permits and approvals for operation of the project. Party A is responsible for the permits, inspection and acceptance of the construction and Party B provides assistance. 3. Purchase all generated electricity from the project. 4. Cooperate with Party A's due diligence and provide required documents, and ensure that provided documents are true and authentic. 5. Provide leveled construction site. For details, refer to the Technology Attachment. Item Twelve Promises 1. Party A and B agree to have long-term cooperation for current and further recycling energy projects. Party A has priority to develop further recycling energy projects for Party B. 2. If the change or update of industrial process or facility of Party B forces Party A to change its system, Party A will use new system cost and loss for replacement as the new system cost to calculate numbers according to Item Three to continue execute the project. 3. From the starting day of the project, Party B must ensure that the coking system works properly and working hours of the CDQ system must be no less than 8,000 hours/year. Party A must ensure the waste heat power generation system of CDQ working hours no less than 7,200 hours/year. Item Thirteen Liability for Breach of Agreements 1. Unless otherwise agreed, either party cannot change or terminate the agreement without written consent of the other party except for force majeure. Equipment of
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Extract the exact clause related to "Covenant Not To Sue" from the excerpt above.

assistant: Not found.