By upholding the quality policy “Care for Customers, Quality Assurance; Full Participation, Continuous Improvement; Value Creation, Contribution to Society ,” ZGM has formulated a number of quality management related procedure documents such as Quality and Safety Management System and Quality Management System, and established a three-level management structure headed by the deputy general manager to continuously optimize the technical quality specifications by applying the “self-enhancement and self-improvement” mechanism. The Technology R&D Department, Production Management Department, Public Facilities Department, Quality Management Department and Sales Department work together to standardize the whole-process product quality management, covering the four main links of saltpan, procurement, production and sales, effectively preventing product quality risks. The Company has passed the ISO 9001 quality management system certification, and passed the China Famous Trademark certification in 2014.

Faced with the world-class problem of lithium extraction from ultra-low concentration brine, we have developed a “one-step” technology for producing battery-grade lithium carbonate, which has been successfully applied and industrialized. After continuous innovation and optimization, the quality of lithium carbonate products has now reached the requirements of the type I standard of lithium brine carbonate GB/T23852-2022, with a purity as high as 99.7%.

We have clarified the R&D management structure from general manager to chief engineer and then to dedicated technology R&D department, relied on the R&D laboratory to introduce professional and technical talents, stimulate innovation vitality and improve innovation economic benefits through standardized management procedures, and inject greater momentum into the innovation and development of the Company.

We adhere to the core principle of “potassium-oriented comprehensive development,” and have successively conquered the mining technology of “mining and transportation separation, decentralized brine mining, and centralized brine transportation,” saltpan brine blending, tandem brine flowing technology, the technology of high-quality potassium chloride production from low-grade raw ore, and one-step drying level 1 bag dust collection technology. In particular, for a large number of low-grade solid potassium abandoned in the mining area, our self-developed solid-to-liquid technology has achieved scientific and technological achievements in Qinghai Province and won the third place of scientific and technological progress achievements in Qinghai Province; our self-developed one-step purification of battery-grade lithium carbonate technology solves the world-class problem of lithium extraction from ultra-low concentration brine, stabilizes the lithium recovery rate at more than 95%, and contributes to the development of the industry.

Technological breakthrough

At present, the main ways of lithium extraction are divided into ore lithium extraction and salt lake brine lithium extraction. According to Appendix E - General Industrial Indicators and Comprehensive Evaluation Indicators of Salt Lakes and Salt Minerals under Geological Exploration Code for Salt Lakes and Salt Minerals (DZ/T0212-2002), the Geology andMineral Industry Standard of the People’s Republic of China：

Lithium extraction from ultra-low concentration brine is a problem of the world’s lithium industry. In response to this world-class problem, the ZGM project team developed a “one-step” technology for producing battery-grade lithium carbonate from ultra-low concentration lithium-containing brine, which stabilized the lithium recovery rate at more than 95% and successfully achieved industrial production, completely changing the pattern of lithium resource development in the world. This technology is far ahead of the domestic and international salt lake lithium extraction level, marking a leading position of China’s salt lake lithium extraction technology in the world.

Adhering to the concept of win-win cooperation with partners, ZGM is committed to integrating the concept of sustainability into supply chain management and continuously strengthening the resilience of the value chain. It continuously improves the supply chain management system internally, focuses on preventing supply chain risks, and actively promotes upstream and downstream suppliers to fulfill their responsibilities externally, in an effort to jointly build a sunny and win-win responsible supply chain.

Despite of economic benefits, when purchasing products and services in all categories and/or regions, we consider business ethics, labor rights, environmental friendliness and other social and environmental factors, and strive to build a compliant, green and responsible purchasing system. At the same time, through regular training, we continue to enhance the sense of responsibility of the procurement team to ensure that the concept of responsible procurement is deeply rooted in their mind. Procurement violations will be dealt with seriously in accordance with relevant policies to further reduce the risk of corruption and fraud in procurement and supply chain management.