• Dina April 2021, gabung Precision Casting Cabang Cina Foundry Association
• Dina 27 Maret 2021, Téhnologi Yungong milu dina ". Festival E-commerce Wuhan Liangzhilong Cina ka-9 taun 2021"
• 21 April 2021, Yungong Technolgoy ilubiung dina 15th China Foundry Industry Innovation and Trend Conference
