well if im not mistaken, the solid surface top i got was from Klassicut and they are based in JB, MY. its some form of acrylic according to the installer. there are many other branded one including Corian, Smasung Staron, LG Hausys etc etc. our ID when with Klassicut coze he used them before and cost wise was reasonable. it came as 2 pieces originally when delivered to my place and yes they glued the 2 parts together. the joining line is actually the kitchen sink there, however after joining the 2pcs together, they will then sand down the areas between and polish it off, the line is only visible at certain angles, if not quite flawlessly down. we did the back splash on the area just above the sink so that it also flows along with hood/hob area with the other sides. if you are refering to the black glass panel above the sink on the cabinet, thats actually the dish strainer area. PMs sent!