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The diatomite deposits in China exhibit well-developed stratification; their occurrence is gentle, with little variation in lithology, and they occur in layered or layer-like forms. The surrounding rock is mostly basalt. The hardness of diatomite ore is 1–1.5, its porosity ranges from 80% to 90%, and its loose density is 0.3–0.5 g/cm2. It has a low strength coefficient, making it relatively easy to extract. At present, many mining sites are mined manually using traditional methods; for example, in Sheng County, Zhejiang Province, there are nearly a hundred such sites, all of which are mined by communities or individuals on a scattered basis, resulting in low recovery rates. In the future, it is necessary to bring order to this situation and move towards scaled-up, standardized mining practices in order to protect these resources. The methods of mining diatomite include open-pit mining and underground mining. Examples of mines that use open-pit mining methods include the Gaosongshu Mine in Dunhua, Jilin, the Qujiajie Mine in Meihekou, Jilin, and the diatomite mine in Huadian, Jilin. The entire county of Shengxian in Zhejiang is filled with small-scale, artisanal open-pit mines. The Xundian Pioneer mining area in Yunnan is associated with high-quality lignite; it has large reserves of diatomite, but the grade of this diatomite is low and it lies at shallow depths, making open-pit mining feasible. However, this should be considered in conjunction with the development of the high-quality lignite beneath it. Those that use underground mining include the Changbaishan mine in Jilin, the Liudaogou mine in Hunjiang, Jilin, and the Xiaoshan mine in Linxi. There are currently no regulations regarding the classification of mining scale; for now, mines with an ore production capacity of 5 to 10,000 tons per year can be classified as medium-sized mines. For the opening and transportation in open-pit mining, road construction and truck transportation are currently the main methods used. For underground mining, adit development or shaft development is usually adopted due to the small scale of extraction. Linjiang Xinghui Filter Aid Co., Ltd. is located in the Ma’anshan mineral deposit area in the Changbai Mountains region of Jilin Province, which is the largest diatomite deposit site in Asia. This deposit holds proven industrial reserves of over 600 million tons, making it one of the most promising diatomite deposits in the world for further development. The company mainly provides information on diatomite, food-grade diatomite, calcined diatomite, diatomite filter aids, diatomite manufacturers, and diatomite companies. To learn more about diatomite, please visit our official website at www.china-diatomite.com.cn.