Chun Yu Works & Co., Ltd. manufactures and sells various fastener products in Taiwan, Hong Kong, the United States, and internationally. It offers automotive, bike, railway system, construction and building, steel structure, electronic, heavy industry and machinery, aerospace, and green energy fasteners; and collated screws, collated auto feed screwdrivers, cold drawn and annealing wires, and bright steel bars and wire rods. The company also provides surface and phosphating treatment, and environmental protection engineering services, as well as waste treatment systems. Chun Yu Works & Co., Ltd. was founded in 1949 and is headquartered in Kaohsiung, Taiwan.