en.Wedoany.com Reported - On April 7th, Guocheng Mining disclosed that the renovation and expansion project of its 5,000-ton/day processing plant at the Malkang Dangba Spodumene Mine in Aba Prefecture, Sichuan, China, has entered the trial production phase. This project leverages one of China's rare super-large lithium ore resources and is designed to process 5,000 tons of ore per day. It marks a crucial step for the mine's transition from exploration and development to large-scale production. 
The Malkang Dangba Spodumene Mine is wholly owned by Guocheng Mining. The cumulative proven ore reserves are 84.255 million tons, containing 1.1207 million tons of lithium oxide resources with an average grade of 1.33%. It is currently the largest spodumene mine in terms of reserves in Western Sichuan. The renovation and expansion project focuses on the beneficiation process. By optimizing the crushing, grinding, and flotation processes, it aims to improve lithium concentrate recovery rates. Supporting facilities such as tailings slurry pipelines and thickeners have been constructed, forming a complete mining and processing closed-loop system.
According to filing information, the mine's proven reserves increased by 64.64% by the end of 2024 compared to previous figures, and there remains a large unexplored area within the exploration rights boundary, indicating potential for further resource expansion. This trial production phase will focus on verifying the stability of the new processing system. It is expected to transition to formal production after 3 to 6 months of commissioning. At that time, the annual lithium concentrate production capacity will exceed 150,000 tons, providing a stable raw material supply for downstream lithium battery materials.
Guocheng Mining is simultaneously advancing the coordinated development of mining operations and processing plant construction. The raw ore mining capacity has been upgraded to match the 5,000-ton/day processing rate. The company also plans to construct lithium salt deep-processing projects to extend the industrial chain. As trial production progresses, this project will become a key fulcrum for lithium resource development in Western Sichuan, contributing to the enhancement of China's lithium resource self-sufficiency rate.
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