United Orthopedic Corp. engages in the development, manufacture, and sale of orthopedic implant instruments sets used by surgeons. Its products include acetabular hip system, high screw angulation, matrix porous stem, revision hip stem, cemented hip stem, knee cemented modular augmentable baseplate, knee all poly tibial components, knee ultra-congruent inserts, and other related prosthetic instruments. The company was founded by Yan Sheng Lin on March 5, 1993 and is headquartered in Hsinchu, Taiwan.