2020년 December 11일 World Cooperative Congress 2020 COEX 513, Yeongdong-daero, Gangnam-gu, Seoul, Republic of Korea, Seoul
2020년 December 8일 - 2020년 December 11일 CDC 2020 [Conference on Decision and Control] ICC [International Convention Center] 224 Jungmungwangwang-ro, Jungmun-dong,, Seogwipo-si,
2020년 December 5일 - 2020년 December 6일 IWGE 2020 [International Conference on Waste Management, Green Technology and Environment] Best Western Hotel Jeju 27 Doryeong-ro, Nohyeong-dong, Jeju Island
