SMM, July 21 –
To deepen industry exchanges, smooth information channels, and accurately grasp development trends and market dynamics in the zinc and indium sectors, on July 21, a team from SMM Information & Technology Co., Ltd. (SMM) — including Geng Zhiyao, Senior Analyst for Copper, Lead and Zinc; Li Hanyu, Senior Zinc Analyst; and Dai Junxiu, Senior Business Manager — visited Yunnan Tin Wenshan Zinc Indium Smelting Co., Ltd. for an exchange and was warmly received by relevant leaders of the company.
During the exchange, the two parties had in-depth discussions on core industry topics, such as current zinc and indium price trends, the enterprise’s comprehensive recovery technologies for zinc and indium metals, existing production and processing capacity, and the regional layout of new mine capacity. Meanwhile, the SMM team introduced in detail the platform’s existing pricing system, pricing logic, and mainstream market application scenarios, conducted in-depth exchanges with the enterprise on industry pricing standards and market quotation applications, fully listened to frontline production and market demands, and further broke down information barriers between upstream and downstream.
This visit effectively consolidated the foundation for information sharing across the industry and provided strong support for accurately assessing zinc and indium market trends and promoting the green, high-quality, and standardized development of the industry.
Profile of Yunnan Tin Wenshan Zinc Indium Smelting Co., Ltd.
Yunnan Tin Wenshan Zinc Indium Smelting Co., Ltd. is a wholly-owned subsidiary of Yunnan Tin Co., Ltd. Established in May 2016 with a registered capital of 1.1 billion yuan and 843 registered employees, it is a state-owned enterprise integrating production, R&D, and trade, mainly engaged in the smelting, processing, sales, and trading of non-ferrous metals and ore products.
After six years of independent process and equipment R&D, the company overcame the industrialization challenges of hematite technology and equipment. In 2018, it invested 2.44 billion yuan to build China’s first and the world’s second demonstration plant for hematite iron removal hydrometallurgical zinc smelting. The plant reached full production and standards within one year, with core indicators leading the industry: zinc recovery rate >98%, indium recovery rate >83%, copper recovery rate >95%, lead and silver recovery rate >99%, iron resource utilization rate >95%, comprehensive energy consumption for zinc electrowinning <680 kg standard coal/mt of zinc, total system sulfur utilization rate >99.96%, and tail gas SO2 <60 mg/Nm3. Leveraging its technological and green development strengths, the company has received more than 30 honors, including national-level “Quality Engineering” award, national-level specialized and sophisticated key “Little Giant” enterprise, national-level green factory, and high-tech enterprise. It holds 42 authorized patents (including 21 invention patents), and three of its core technologies have won the First Prize of China Nonferrous Metals Industry Science and Technology Award. The “New Green and Efficient Zinc Smelting Technology for Complex Polymetallic Iron-bearing Sphalerite” and the “Hematite Process for Iron Removal and Zinc Smelting” have been respectively listed by the National Development and Reform Commission (NDRC), the Ministry of Industry and Information Technology (MIIT), and other authorities in the industry carbon peak action plan and energy-saving and carbon-reduction guide, and are promoted as key advanced technologies.
SMM Contact: Geng Zhiyao
Tel: 13818541149
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