This coffee table is made out of Kirei board, which is a material made out of the recycled stalks of the Sorghum plant. Usually these stalks are thrown away after the Sorghum cereal is harvested, but in this case, they are reclaimed, and then bonded into a sheet using formaldehyde-free adhesives.
This coffee table is made with rubberwood, which is considered a renewable timber because it is only milled from rubber trees that have ceased to produce latex. See more information on rubberwood here. Available for $60 from Amazon.