This was the response from ChatGPT when I queried the accuracy...

This was the response from ChatGPT when I queried the accuracy of the US demand figures it originally provided :

Final Clarification:

• U.S. Tungsten Demand for Tungsten Content (Pure Tungsten): Approximately 3,000 - 4,000 metric tons of tungsten content annually (as per USGS).
• U.S. Demand for Tungsten Products (Including Derivatives): 7,000 - 8,000 metric tons of tungsten-equivalent demand, which likely includes ferrotungsten, tungsten carbide, tungsten alloys, and other refined products that contain tungsten.

So, your sources that suggest 8,000 metric tons are likely referring to the total market demand, which includes all forms of tungsten products. In comparison, the USGS figures I mentioned earlier specifically refer to tungsten content alone, which is the pure tungsten metal.
Conclusion:

• The U.S. total demand for tungsten products (including ferrotungsten, tungsten carbide, and other alloys) can indeed be closer to 8,000 metric tons, which reflects the broader market consumption.
• The USGS figure of 3,000 - 4,000 metric tons refers to tungsten content (pure tungsten), not the overall market value of finished tungsten products.