• 1988. 8. 19 Inaugural meeting of the Busan Association for Mechanical Processing Technology Research
• 1989. 8. 18 Academic seminar by the Daegu Association for Mechanical Processing Technology Research
• 1990. 2. 18 Academic seminar by the Busan Association for Mechanical Processing Technology Research

<ul class="history_txt"><li><strong class="blue" style="font-size: inherit; font-weight: bold; margin-right: 10px;">1988. 8. 19</strong> Inaugural meeting of the Busan Association for Mechanical Processing Technology Research</li><li><strong class="blue" style="font-size: inherit; font-weight: bold; margin-right: 10px;">1989. 8. 18</strong> Academic seminar by the Daegu Association for Mechanical Processing Technology Research</li><li><strong class="blue" style="font-size: inherit; font-weight: bold; margin-right: 10px;">1990. 2. 18</strong> Academic seminar by the Busan Association for Mechanical Processing Technology Research</li></ul> <ul class="history_txt"><li><strong class="blue" style="font-size: inherit; font-weight: bold; margin-right: 10px;">1988. 8. 19</strong> Inaugural meeting of the Busan Association for Mechanical Processing Technology Research</li><li><strong class="blue" style="font-size: inherit; font-weight: bold; margin-right: 10px;">1989. 8. 18</strong> Academic seminar by the Daegu Association for Mechanical Processing Technology Research</li><li><strong class="blue" style="font-size: inherit; font-weight: bold; margin-right: 10px;">1990. 2. 18</strong> Academic seminar by the Busan Association for Mechanical Processing Technology Research</li></ul>