• Ma ʻApelila 2021, e hui pū me ka Precision Casting Branch o Kina Foundry Association
• Ma Malaki 27, 2021, Yungong Technology komo i ka ". The 9th China Wuhan Liangzhilong E-commerce Festival in 2021"
• ʻApelila 21, 2021, komo ʻo Yungong Technolgoy i ka 15th China Foundry Industry Innovation and Trend Conference
