經濟部所屬的國營事業機構，其在國內投資的建設，尤其是大型的基礎建設，都與民生息息相關，也促進國內經濟成長。自政府開放台灣油品市場自由化，台灣中油公司在經營環境面臨強大市場競爭壓力，極需降低經營成本，以改善經營績效。在辦理大型工程時，符合目的需求，如何在達成任務外，並致力成本的控制、工期的控管、品質的監督及效益目標等是本研究探討的重要課題。
工程的辦理同時必須遵循政府採購法的法令規定，「為建立政府採購制度，依公平、公開之採購程序，提升採購效率與功能，確保採購品質」及「機關辦理採購，應以維護公共利益及公平合理為原則，對廠商不得為無正當理由之差別待遇。」。而本研究即藉質化研究訪談、歸納及整理等方法，由過去的工程履約爭議案例，探討減少工程履約爭議的因素，期限使台灣中油公司的工程採購，與廠商間的爭議愈來愈少，既符合法令規定，亦提升採購效率。為減少工程履約爭議，本研究的四項發現: (1)、公司的需求變更，宜有期程之限制；(2)、公司應重視工程設計的品質，並有專業團隊審查文件；(3)、公司及廠商應重視及善用公開閱覽機制，必要時，公司以召開說明會方式答覆廠商詢問；(4)、重視招標文件的資訊公開，標示核心部分，包括報價單與工程圖說，並將廠商視為合作夥伴，可為業者及未來相關研究之參考。

CPC Corporation, Taiwan is a government-owned institution which affiliated to the Ministry of Economic Affairs. CPC Corporation, Taiwan invests many infrastructures in Taiwan, some of the infrastructures are large engineering projects which closely linked to people's livelihood and domestic economic growth. Since Government liberalized oil product market, CPC Corporation, Taiwan is faced with the pressure of strong market competition. CPC Corporation, Taiwan needs to control costs more efficiently and improve its operating performance. How to achieve the task, complete the goal on schedule, control cost, guaranteed quality, and effectiveness in dealing with large engineering projects which is an important issue for the research study.
When dealing with engineering projects, CPC Corporation, Taiwan has to follow “GOVERNMENT PROCUREMENT ACT”. The “GOVERNMENT PROCUREMENT ACT” is enacted to establish a government procurement system that has fair and open procurement procedures, promotes the efficiency and effectiveness of government procurement operation and ensures the quality of procurement. In conducting any procurement, an entity shall observe the principle of protecting public interests, fairness and reasonableness, and shall not accord differential treatment to suppliers without due cause.
The objective of this study is to propose reducing construction disputes by finding the key factor of construction disputes in the past with means of qualitative research interviews, summarizing and arranging methods. Therefore, CPC Corporation, Taiwan's engineering procurement, can get fewer disputes with manufacturers. It can not only line with statutory requirements but also enhance the procurement efficiency. In this study, four techniques that reduce construction disputes are suggested:
1.The company must limit the time of changing design requirement.
2.The company should pay attention to the quality of engineering design and have a professional team to examine the documents;
3.The manufacturers should pay attention to and make good use of the public reading mechanism, if necessary, the company should hold a briefing to answer manufacturers inquiries.
4.The company needs to pay attention to the information tender documents open, marking the core, including quotations and drawings, said, and Manufacturers as partners.
The above four techniques are for the industry and the relevant research for future reference.
Keywords: Engineering Procurement, Performance disputes, Differential treatment, Information disclosure

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