• Thaum lub Plaub Hlis 2021, koom nrog Precision Casting ceg ntawm Tuam Tshoj Foundry Association
• Thaum Lub Peb Hlis 27, 2021, Yungong Technology koom nrog "Lub 9th Tuam Tshoj Wuhan Liangzhilong E-commerce Festival hauv 2021"
• Lub Plaub Hlis 21, 2021, Yungong Technolgoy koom nrog 15th Tuam Tshoj Foundry Industry Innovation thiab Trend Conference
