In Colombia, a product based on this technology was commercialized a few months ago, and in the Ivory Coast, the full-scale plant is being commissioned to calcine clays.
And here in Switzerland, we have found that clays produce very reactive materials when they're calcined,that's to say heated to around 800 degrees Celsius, significantly lower than the 1,450 needed to produce cement.
We then take this calcined clay, and we add a bit of limestone -- but this time not heated, so no CO2 emissions -- and some cement, and this combination of limestone, calcined clay and cement, we call LC3.