On December 6, 2021, the 7th Guangzhou International Sand & Stone Technology and Equipment Exhibition closed successfully. In the fourth quarter, outbreaks occurred in many regions across the country. Although they were under timely control, they still posed many challenges to the preparation and participation of the exhibition. Thanks to the organizers and POTA South China partners for their hard work. During the exhibition, POTA exhibits and dust & solid waste integrated solutions have received widespread attention and customer recognition, which made us feel the enthusiasm from South China during the downturn of the overall market. Editor/Xu Shengpeng