How is HPA used?

  • The largest consumption of HPA by volume today is in the manufacture of synthetic sapphire, a super-hard material used as a substrate in LED and semi-conductor production. There is no known substitute for HPA in the production of artificial sapphire.
  • Demand for 4N HPA for LED production continues to grow as LEDs are more widely applied.
  • Demand for 5N+ HPA for sapphire glass production is growing rapidly as this becomes the material of choice in display screens for portable electronic devices such as cell phones and smartwatches.

Market size by purity level