Masteel’s principal business activities are in the manufacturing and marketing of high tensile steel bars, mild steel bars and prime steel billets. The 100%-owned subsidiaries: MS Express Sdn Bhd is involved in the transportation and logistics of steel bar and billets between Masteel’s Bukit Raja and Petaling Jaya facilities and transportation/delivery of Masteel’s products to its customers. Masteel has a 48.25% owned associate company, Bio Molecular Industries Sdn Bhd, a strategic partnership between Masteel and Curium International S.A., which is a worldwide leader in radiopharmaceuticals.