HyosungONBCo.,Ltd manufactures and supplies organic fertilizers to markets both... HyosungONBCo.,Ltd manufactures and supplies organic fertilizers to markets both within South Korea and internationally. Their extensive product line also features various agricultural inputs, including specialized crop and microbial fertilizers, livestock manure, liquid nutritional supplements, and peat moss. The company was founded in 1984 and maintains its corporate headquarters in Asan-si, South Korea. It adopted its current name, HyosungONBCo., Ltd, in July 2006, having previously operated as HYOSUNG O&B Corporation.