“稀世珍宝”再现我国，多国想用先进技术来换，都被我国逐一拒绝

Core Viewpoint - The discovery of rhenium reserves in China significantly enhances the country's resource security and reduces reliance on imports, positioning China as a key player in the global rhenium market [10][25]. Group 1: Rhenium Reserves and Production - Rhenium is a rare transition metal with a very high melting point of 3186 degrees Celsius and is found in the Earth's crust at a concentration of one part per billion [2]. - Global known rhenium reserves are less than 2500 tons, primarily located in Chile (1300 tons), the USA (390 tons), and Russia (310 tons) [4]. - China has made significant strides in rhenium exploration since the 1960s, developing its own production chain and reducing dependency on imports [5]. Group 2: Recent Discoveries and Impacts - In 2010, a significant rhenium deposit of 176 tons was discovered in Shaanxi, accounting for 7% of global reserves, followed by another discovery of 30 tons in Anhui in 2017 [7][9]. - These discoveries have alleviated the rhenium supply gap in China, with domestic production capabilities improving [9]. Group 3: Global Demand and Strategic Importance - Rhenium is crucial in high-temperature applications, particularly in aerospace, where 80% of rhenium is used in turbine blade alloys [10][19]. - The global demand for rhenium is increasing, and with China's reserves, the country has gained leverage in the international market [10][17]. Group 4: International Reactions and China's Position - Following the discovery of rhenium reserves, Western countries, led by the USA, sought to exchange advanced technology for access to China's rhenium resources, but these proposals were declined [12][15]. - China's firm stance on maintaining control over its rhenium resources reflects its focus on national security and self-sufficiency [17][25]. Group 5: Future Prospects and Applications - Rhenium has diverse applications beyond aerospace, including in rocket nozzles, medical isotopes for cancer treatment, and environmental catalysts [21][23]. - China's investment in refining technology and exploration is expected to further enhance its rhenium production capabilities and secure its position in the global market [23][25].