3．本協定有效期限到期，如甲乙雙方不再續簽，而且甲乙雙方均履行完甲方已發出且被乙方接受生效的全部《購貨清單》約定的相應義務後，本協定自然終止。
十二、不可抗力
乙方如因洪水等自然災害、戰爭、罷工等不可抗力原因不能按照《購貨清單》中的約定交貨時，須向甲方提供其所在國相關機構出具的證明材料，經雙方協商《購貨清單》可以延遲履行，甲方不得扣收乙方未能履行供貨部分對應的4％供貨履約保證金。
十三、爭議
甲乙雙方在本協定執行過程中如有爭議，雙方友好協商解決。如爭議無法協商解決，則由中國國際經濟貿易仲裁委員會在北京根據中華人民共和國實體法律進行仲裁。
十四、有效
本協定自甲乙雙方簽章之日起生效，有效期一年，英文作為對中文的解釋，如有差異以中文為準。
甲方（蓋章）：_________
乙方（蓋章）：_________
附屬檔案：
import transaction service agreement
party a：
party b：
address：
address：
post code：
post code：
tel.：
tel.：
fax：
fax：
e-mail：
e-mail：
party a and party b hereof signed this agreement on the basis of fair， voluntary， and mutual -benefit according to 《contract law of people's republic of china》.
1．notarization
（1）this agreement is notarized and recorded by the notary public office， _________， the prc（hereinafter called“notary office”） and both parties shall follow the relative regulations and requirements of the notary office.
（2）the relative legal documents， such as quotation sheet information of commodity sales and purchase sheet， etc. shall be sent to the other party by fax or express mailing after being put on records at the notary office by the two parties.
（3）all the legal documents recorded by the notary office which mentioned in above clause 2 are to be regarded as legal evidence for settling disputes.
（4）notary office：fax：_________，tel：_________.
2．principal clauses
（一）party a is responsible for selling the legitimate commodities of party b in china. price of commodities refers to 《import commodity quotation sheet》（the enclosure 1）.all commodities of party b sold in china through party a must be enclosed with explanation in chinese（including commodity packing explanation and commodity explanation）.
（二）
（1）party b shall choose audit services to verify its production capabilities and quality control systems which supplied by _________ local affiliate in party b's country according to require of party a. party b shall present grade report of _________ to party a.
（2）party b confirms that the total annual transaction amount of commodity under this agreement is usd_________.