Backed by undulating karst mountains, this factory building draws its design language from the natural context. To the north of the site there is a bare plateau flattened by the mining of a cement factory. In order to respond to the nature and memory of the site, the facade of the building is featured by a pattern of undulating mountain range to visually remedy the damage to the mountains by human impacts, evoking the self-examination of human activities. The pattern of the mountain range is derived from the combination of four sets of trigonometric function curves through parametric design.