What characterises a sculpture? The property of being three-dimensional? An object of art that can be viewed from several perspectives? Or the material from which the artwork is constructed, peeled or moulded? Two ideas play a central role in the sculptures of Kai Schiemenz (born 1966 in Erfurt, Germany): the surface and the process. Every object was once something else: rocks or polystyrene blocks that become coloured glass via a silicone mould, computer scribbles that end up as ceramic tiles or concrete bases that become independent sculptures in a new context. And last but not least, ideas of architecture and urban spaces, from which these abstract objects mentally grow. (Leonie Pfennig)

Gallery address: 13F & 14F, Hong Kong Arts Centre, 2 Harbour Road, Wan Chai