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:
"""
Xi'an Zhonghong New Energy Technology Co., Ltd. Boxing County Chengli Gas Supply Co., Ltd. Project Cooperation Agreement July 2013 Cooperation Agreement Coke Dry Quenching (CDQ) and CDQ Waste Heat Power Generation Project Party A: Xi'an Zhonghong New Energy Technology Co., Ltd. Legal Representative: Ku Guohua Xi'an Zhonghong New Energy Technology Co., Ltd. is a subsidiary of Xi'an TCH Energy Technology Co. and is also the third tire subsidiary of China Recycling Energy Corporation, and it engages in the project operations in China. China Recycling Energy Corporation (the "Company") is a NASDAQ listing company. Its stock trading symbol is CREG and is a leading industrial waste-to-energy solution provider in China. The Company is the first in the recycling energy industry with the most completed projects and the widest ranges in the industry. As the direct investor, the Company provides recycling energy integrated solution covering technology, investment, and operation. Party B: Boxing County Chengli Gas Supply Co., Ltd. Legal Representative: Li Shuxun Boxing County Chengli Gas Supply Co., Ltd. is located in the Industrial Park, Chunhua Town, Boxing County, Shandong Province, which is mainly engaged in coal coke production and coal chemical industry. After friendly negotiation between two parties, based on the principle of equality and autonomy, Party A and Party B reached following items with respect to the coke dry quenching (CDQ) and CDQ waste heat power generation project. Item One, Investment Construction Projects 1. Construction of CDQ and CDQ recycling economic projects Construct CDQ system and CDQ waste heat power generation station as a part of of tamping coke oven with 2 x 60 holes, 5.5 meters and JNDK55-07 of model at Boxing County Chengli Gas Supply Co., Ltd. The designed total capacity is 25 MW. 2. Under the premise of consistent with the CDQ main equipment and main parameter descriptions, Party A will be in charge of layout, technical performance index and technical specifications of CDQ system and CDQ waste heat power generation system; if there is any difference between CDQ main equipment and main parameters description, Party B will make the decision. Major equipment and design will be implemented after Party A obtains Party B's consent. All requirements, statistics should be scientific, reasonable, and operable. 3. Party A is responsible for the investment in the construction and operation of CDQ system and CDQ waste heat power generation system project, including design of the project, equipment selection, equipment procurement and manufacturing, construction, engineering, installation, formal power generation. Item Two, Operation of Recycling Project 1. After complete of the project construction, Party A shall be responsible for the operation, maintenance and management of the recycling project. Party A shall charge Party B energy saving service fee according to the income from CDQ waste heat power generation station. 2. Both Parties jointly determine the territorial boundary line of power transmission pursing to technical appendix. 3. The operation of CDQ system and CDQ waste heat power generation system includes but is not limited to: equipment maintenance, repair, and update; Party A will not be responsible for the quality and quantity of the coal coke of CDQ. Item Three, Cost and Operation Target Party B shall pay Party A energy saving service fee after the construction of CDQ system and CDQ waste heat power generation system are completed (upon passing evaluation of the ability of connection to the grid for power generation). 1. The energy saving service fee is paid in the form of electricity fee. The calculation basis of energy saving service fee is as follows: average operational time is 8,000 hours per annually; if the annual average operational time was less than 8,000 hours due to the reasons of Party B, the operational time is calculated as 8,000 hours per year; if the annual average operational time was less than 8,000 hours due to the reasons by Party A, the operational time is calculated based on the actual operational hours. 2. If the grid-connected electricity price is adjusted since the execution of this agreement, the fee shall be calculated as the energy saving service fee (stipulated in section 1 of Item III ) plus 85% of the price change/adjustment from the original grid-connected electricity price. The starting day for the change will be from the date of adjustment by Shandong Provincial Price Department. 3. The amount of power generated shall be calculated based on the indicator of electricity meter in the power station. 4. The settlement date is the first day of the next month. Deducting the dues of Party A,
"""

Extract the exact clause related to "Agreement Date" from the excerpt above.

assistant: July 2013