RM180/m2 for Wall Tiles
RM150/m2 for Floor tiles

BMS/MML Tiles.

This from my ongoing tenders

Scope of work 1000m2 for floor tiles, 800m2 for wall tiles

stainless steel sheets require some magic to stick.
you need to first hammer a few stainless steel bars into the wall as anchoring first, then weld the sheets onto it.

afterwards, still got hollowness as the sheet is not 100% glued to the wall.
For 100% glue to wall, it's best to cast at site.

for new kitchen, you can consider SS sheets as the wall doesnt exist yet.
For retrofitting, just go for tiles.