Since rice is the main food in Korea, there are no regulations on corn milling yet. Corn is known as one of the world's top three food crops along with wheat and rice, and it is known that 3.5 billion people worldwide use corn for food. In addition, corn mills are not developed or sold in Korea, but the use of corn mills is increasing significantly in many countries in Southeast Asia. In the Philippines, as Korea's rice mill import increases, Korea's KAMICO (Korea Agricultural Machinery Industry Cooperative) and domestic company A agreed to develop a corn mill jointly with PHilMech, an organization affiliated with the Philippine Ministry of Agriculture. However, research on corn milling was very insignificant, so the development was carried out based on the technology of Korea's rice mill. Rice milling is performed by peeling off the skin of rice and producing brown or white rice, so it is carried out by removing the skin and cutting the skin. On the other hand, in the corn mill, the skin of the corn is peeled, pulverized and selected to produce main products suitable for edible use. Therefore, in order to develop a corn mill, processes such as peeling, transfer, grinding, sorting, and by-product separation are required, and suitable parts must be developed. In addition, the performance must be gradually improved through experiments in which corn is repeatedly milled. The Philippines produces 7.98 million tons/year of corn, which is about 100 times that of Korea, and is mostly consumed as a staple food. This is about 10% of the total crop production in the Philippines. In addition, the main cultivation complexes of corn are the mountainous regions of Tarlac or Pangasinan, and the produced corn is 72.4% of the so-called yellow corn called Arabel and Sarangani, and the remaining 27.6% are known as white corn. In this study, it was intended to produce grains of 2.5 mm or less suitable for food for yellow corn and to develop a corn mill for 200 kg per hour. Detailed conditions for development are stipulated as more than 55% of the main product recovery rate, more than 31% of the by-product recovery rate, less than 5% of the raw material loss rate, and more than 80% of the embryo dislocation rate. In this study, to achieve this, the overall process of the corn mill was developed, and the optimal conditions for the corn mill were obtained through the development of parts and empirical tests to improve performance. In addition, it was intended to achieve the development goal by evaluating and analyzing the performance of each part so that it did not conflict.

Introduction
Materials and Methods
    1. Philippine corn
    2. Key performance parts of the Philippine standardfor corn mills
Results and Discussion
    1. Development specifications and power systems forPhilippine corn mills
    2. Performance assessment for 2021 Philippinenational standards for corn mills
    3. Key components affecting the performance ofcorn mill
    4. Calculation method of main productrecovery index
    5. Performance assessment for 2022 Philippinenational standards for corn mill
    6. Results of performance evaluation of local cornmills in the Philippines in 2022
    7. Philippine AMTEC performance evaluation report
Acknowledgments
References

• Seok Jin Lee(CEO, Leehwa, 22-23, Waegwan-eup, 2 Saneopdangi 3-gil, Chilgok-gun, Gyeongsangbuk-do, 39910, Korea)
• Sun Young Lee(Executive director, Leehwa, 22-23, Waegwan-eup, 2 Saneopdangi 3-gil, Chilgok-gun, Gyeongsangbuk-do, 39910, Korea)
• Jong Seung Cho(Director, Leehwa, 22-23, Waegwan-eup, 2 Saneopdangi 3-gil, Chilgok-gun, Gyeongsangbuk-do, 39910, Korea)
• Ji Ae Lee(Employee, Leehwa, 22-23, Waegwan-eup, 2 Saneopdangi 3-gil, Chilgok-gun, Gyeongsangbuk-do, 39910, Korea)
• Donald V. Mateo(Science researh specialist Ⅱ, Department of Agriculture of Philippine Center for Post harvest Development and Mechanization, Munoz Nueva Ecija, 3120, Philippines)
• Sung Ha Hong(Special researcher, Institute of Agri-Biotechnology Convergence, 303 Cheonjam-Ro, Wansan, Jeonju, 55069, Korea)
• Hwang Gyu Lee(Graduated Student, Department of Advanced Science and Technology Convergence, Kyungpook National University, Sangju, 37224, Korea)
• Jin Hyun Kim(Professor, Department of Precision Mechanical Engineering, College of Science and Technology, Kyungpook National University, Sangju, 37224, Korea)
• Jung Rae Lee(Professor, Department of Kinesiology, College of Ecology and Environmental Science, Kyungpook National University, Sangju, 37224, Korea)
• Tae Wook Kim(Professor, Department of Precision Mechanical Engineering, College of Science and Technology, Kyungpook National University, Sangju, 37224, Korea) Corresponding author