First, let's talk about the first key point: just how rare is it? We often hear that rare earths are rare, but their rarity far exceeds most. It is the metal with the lowest content in the earth's crust, even rarer than platinum and gold, which we are familiar with. Let me give you the most intuitive example. The average content of rhenium in the entire earth's crust is about one in one billion. In layman's terms, it's almost impossible to find rhenium by just grabbing a handful of soil from the ground. The total annual production worldwide is only around 40 to 50 tons. What does 40 to 50 tons mean? A household car weighs about 1.5 tons, and all the rhenium dug up worldwide in a whole year is only as heavy as 30 cars. When you compare it to the annual production of tens of millions of tons of copper and millions of tons of lithium, you will know how precious rhenium is. Moreover, it has a particularly outrageous characteristic: there are no independent mines. Gold has its own mines, silver has its own mines, and iron has its own mines, but there is no dedicated rhenium mine worldwide. Rhenium is a standard semi-metal that is hidden in molybdenum mines and is extracted incidentally during the mining of wood mines, as a little by-product. This leads to two fatal attributes: the production is completely uncontrollable and it is extremely dependent on molybdenum mining. If molybdenum mines reduce production or stop production, the global supply will directly follow suit and become scarce. This is also the core reason why rhenium prices fluctuate wildly and its strategic position has increased.

Next, let's talk about what rhenium is used for, and why it's so valuable. Remember the core application: it's specifically designed to withstand high temperatures. It's the king of heat resistance in aerospace. Ordinary iron and steel soften, deform, and melt at just a few hundred degrees. What temperature do aviation engines and rocket engines operate at? Extreme high temperatures of thousands of degrees Celsius. They also rotate at high speeds and withstand tremendous pressure. Ordinary metals directly deform and become useless, but nickel-based high-temperature alloys mixed with rhenium are on a completely different level. Let me give you a common-sense analogy. Ordinary steel is like an ordinary person, who can't withstand the heat and gets heatstroke at temperatures of 30-40 degrees Celsius. An alloy mixed with rhenium is like a super special forces soldier, who remains undeformed and stable even under the scorching heat of thousands of degrees. All core engine blades for high-end civil aircraft, military fighter jets, rockets, and missiles must use rhenium-containing alloys. Here, I want to correct a common misconception. Many people think that the high cost of airplanes lies in their fuselages and outer shells, but that's not true. The most expensive part of an airplane is the engine, and the most expensive part of the engine is the blade. The core lifeblood of the blade is rhenium. There's another common saying: whoever controls rhenium controls high-end aerospace manufacturing. Rhenium also has a rigid demand for use in petrochemical catalysts. The core catalyst for hydrocracking in our petroleum industry cannot do without rhenium. Simply put, to refine heavy oil and inferior oil into high-quality gasoline and diesel, rhenium catalysts are indispensable. They can greatly improve fuel quality and refining efficiency, making them an essential key material in the petrochemical industry. After discussing its applications, let's talk about the market situation and trends that everyone is most concerned about. Let me explain in simple terms. First, global resources are highly monopolized. The global production of rhenium has long been concentrated in overseas top resources, making it a veritable choke point metal. Second, China's current situation is that we are a major molybdenum mining country, and our rhenium associated resources are actually not scarce. In the past many years, we didn't know how to cherish them, and a large amount of rhenium was wasted when mining molybdenum. It was exported at low prices. However, in the past decade or so, we have completely awakened and strictly controlled the purification technology of rhenium, achieving self-reliance. In simple terms, we were once choked by others, but now we have basically achieved self-control. We no longer rely on imports for high-end aerospace rhenium. This is a crucial breakthrough for our high-end manufacturing. Finally, let me summarize to help everyone thoroughly remember rhenium.
     1. Rhenium is one of the rarest metals globally, with no independent mines and relying on semi-processed mining for production. 2. Its core capability, high temperature resistance and deformation resistance, makes it the soul material for aeroengine blades. 3. Two core competitive areas: high-end aerospace and petrochemical industries, irreplaceable. 4. With full strategic attributes, military aerospace rigid demand is the core strategy of a truly great power.