Since the addition of the domestic trade section of sand and gravel in 2019, the river sand, crushed stone, machine-made sand, cement, steel and other ground materials operated by our company have been widely used in large and medium-sized infrastructure projects such as highways, high-speed railways, bridges, subways, airports, and Yunxiao Energy Storage Nuclear Power Station. We have successively established strategic cooperation relationships with China Railway 10th Bureau, China Railway 11th Bureau, China Railway 12th Bureau, China Railway 19th Bureau, China 22nd Metallurgical Construction, China Hydropower Construction 7th Bureau, and China Hydropower Construction 15th Bureau. The projects we have participated in include Ganzhou-Shenzhen High-speed Railway, Guangzhou-Shantou High-speed Railway, Fuzhou-Xiamen High-speed Railway, Jieyang Expressway, Huizhou Civil Aviation Airport, Zhanjiang Airport, Shenzhen-Shantou High-speed Railway, and Zhao'an Municipal Engineering, providing high-quality and high-standard substrate materials for national key transportation infrastructure projects. For four consecutive years, we have been rated as the annual quality supplier by many central enterprises such as China Hydropower Construction 7th Bureau and Hydropower Construction 14th Bureau.