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Hangzhou Hongxin Calcium Industry Co., Ltd. is located in the Industrial Functional Zone of Lijia Town, Jiande City—known as the "Hometown of Calcium Carbonate in China." It is a specialized enterprise integrating research, production, and sales of calcium hydroxide and calcium oxide. The company is a key backbone enterprise in Jiande City and one of the leading producers of calcium hydroxide and calcium oxide in China's inorganic salt industry. Adhering to the business philosophy of "superior quality, customer satisfaction, technological leadership, and commitment to credibility," the company relies on technological innovation and high product quality to maintain a leading position in the calcium hydroxide and calcium oxide industry. Its innovation capabilities rank among the top in the sector. Leveraging the advantages of local high-quality and abundant limestone resources, the company employs domestically advanced large-scale automated vertical kilns for calcination and introduces internationally advanced hydration equipment for calcium hydroxide production. It has an annual production capacity of 120,000 tons of calcium hydroxide and 100,000 tons of calcium oxide. The product range includes environmental-grade calcium hydroxide, premium-grade calcium hydroxide, ultrafine calcium oxide, refined calcium oxide, calcium oxide for drying masterbatch, industrial calcium oxide, and lump calcium oxide, among others. The company boasts a young and dynamic team of technical and management professionals with strong research capabilities. From raw material procurement, production management, quality control, and financial management to product sales and operational tasks, the company has a well-established organizational structure and personnel to ensure stable management throughout the entire production process. Internally, the company implements ISO9001 management standards, enforcing strict quality control from raw material intake to production processes and final product delivery. This ensures excellent product quality and a 100% pass rate for all outgoing products. The company is conveniently located 34 kilometers from Jiande City's Xin'anjiang, 65 kilometers from Quzhou City, 20 kilometers from Shouchang Station on the Jinhua-Qiandaohu Railway, and just 1 kilometer from the Datong Exit of the Hangzhou-Xin'anjiang-Jingdezhen Expressway. The company warmly welcomes domestic and international experts and clients to collaborate on technological and business partnerships, aiming to expand production scale and better utilize local high-quality limestone resources to serve society.