Extruded polystyrene, or XPS sheet, is a kind of foamed polystyrene board used for insulation. Foamed polystyrene boards are typically referred to as EPS. So....
https://www.xpsboard.in/blogs/home/details/xps-insulation-board-suppliers-in-gurgaon

In the world of thermal insulation, XPS (Extruded Polystyrene) boards have emerged as a top choice for enhancing energy efficiency, comfort, and sustainability in buildings.....
https://www.xpsboard.in/blogs/home/details/thermal-boards-wall-insulation-manufacture-in-india