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From April 15 to 18, a series of major mining events unfolded across China. Xinhai Mining made a strong impression by showcasing its “Full-Industry-Chain Mining Services (EPCM+O)” at three key industry exhibitions: the 137th China Import and Export Fair (Canton Fair), the 19th International Zirconium-Titanium Industry Development Conference, and the 10th China International New Energy Industry Expo. Experienced Xinhai technical representatives were dispatched to Guangzhou, Qinzhou, and Suzhou, fully demonstrating the company’s innovations and full-process service capabilities in the mining sector.

From April 9 to 11, Xinhai Mining participated in three major international exhibitions to share cutting-edge technologies and expertise, and to explore new opportunities for global cooperation. From Beijing to Tianjin, and then to Nanjing, Zhang Yunlong, Chairman of Xinhai Mining, along with technical experts, showcased the company's professional capabilities, comprehensive strength, and commitment to sustainable development to guests in an innovative and engaging manner.

The Henan 1500TPD silver-lead-zinc-gold polymetallic ore flotation expansion project, undertaken by Xinhai Mining, officially started in early April 2024 and was completed and put into production by early November 2024.

Mining engineering construction is a comprehensive and systematic process that encompasses mining, mineral processing, tailings management, and infrastructure development in mining areas. It includes underground mining, open-pit mining, the construction of mineral processing plants, tailings ponds, and other supporting projects.

Tailings ponds are storage places for tailings or other industrial waste discharged during the mineral processing of mines. They are usually surrounded by dams and are used to store tailings from metal or non-metal mines. Tailings ponds typically include systems such as tailings storage, flood discharge, and backwater management. Based on the terrain, they can be divided into valley-type, mountainside-type, flat-land-type, and river-interception-type tailings ponds. As a key facility in mine processing plants, tailings ponds not only help to recover resources, but are also important environmental protection projects for mining enterprises, helping prevent untreated tailings from being discharged into the natural environment.

From March 26 to 28, when the peony flowers were in bloom, the 2025 Fifth National Gold (Nonferrous) Industry Science and Technology Innovation Conference was officially held in Luoyang. The theme of the conference was "Focusing on the transformation of scientific and technological innovation results and promoting the transformation and development of new quality productivity."

On March 15th, Chairman Zhang Yunlong signed a cooperation agreement on mine operation general contracting project on behalf of Xinhai Mining and Zhangjiakou Sheng'an Mining. This is another mining general contracting project undertaken by Xinhai Mining. This is not only another important breakthrough in Xinhai Mining's mine operation general contracting (EPCM+O) business, but also a new starting point for the in-depth cooperation between the two parties in the mining field.