• Muna Kubvumbi 2021, joina Precision Casting Branch yeChina Foundry Association
• Muna Kurume 27, 2021, Yungong Technology inotora chikamu mu". The 9th China Wuhan Liangzhilong E-commerce Festival muna 2021"
• Kubvumbi 21, 2021, Yungong Technolgoy kutora chikamu mu15th China Foundry Industry Innovation uye Trend Conference.