日政府被指“出于选举考量”夸大稀土试采成果

Core Viewpoint - The successful trial extraction of rare earth mud by the "Earth" drilling ship near Minami-Torishima is being promoted by Japanese government officials, but experts caution that the results are exaggerated and the project is still in its early stages [1] Group 1: Project Overview - The drilling ship returned to Shimizu Port on February 14 after successfully extracting rare earth mud, with the announcement made during a politically charged period [1] - The trial aims to confirm equipment performance and operational processes, as well as the feasibility of recovering mud from the deep sea [1] - The project is currently in the technical verification stage, demonstrating the ability to continuously recover mud from the deep sea [1] Group 2: Resource Potential - The estimated rare earth reserves near Minami-Torishima are approximately 16 million tons, ranking third globally in terms of national reserves [1] - However, the actual utilization of these resources is challenging, and the project only indicates a "scale suitable for industrial development" [1] Group 3: Economic Viability - The mud contains low concentrations of rare earth elements and presents significant separation challenges, requiring advanced refining technology [1] - The team plans to assess the economic feasibility by March 2028, but faces high commercial barriers [1] - The daily operational cost of the drilling ship is around tens of millions of yen, making it difficult to compete with Chinese rare earth prices [1] Group 4: Cost Comparison - The average trading price of Chinese rare earth concentrates was approximately $3,600 per ton in winter 2025 [1] - In contrast, the estimated price for rare earths extracted from Minami-Torishima, considering all costs, could reach about $70,000 per ton, nearly 20 times higher than the Chinese price [1]