Krakatau Steel (Persero) Tbk PT
Tumpal Hamonangan Simatupang is a seasoned professional in the steel and cement industry with extensive experience in operational excellence, sales, and engineering roles. Currently serving as Vice President of Operational Excellence at PT Krakatau Steel (Persero) Tbk since May 2025, Tumpal focuses on strategy and policy development related to production planning and inventory management. Previous roles include Department Head of Plate Domestic Sales at PT Krakatau Posco, where responsibilities encompassed managing steel plate sales across various sectors, as well as serving as Secretary to the Board of Commissioners at PT Krakatau Semen Indonesia and PT Krakatau Jasa Samudera. Tumpal's earlier positions at PT Krakatau Steel involved managerial and engineering roles within the Slab Steel Plant, emphasizing production efficiency and customer satisfaction. Tumpal holds an MBA in Business Leadership and a Bachelor's degree in Materials Engineering from Institut Teknologi Bandung.
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Krakatau Steel (Persero) Tbk PT
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PT Krakatau Steel (Persero) Tbk is an Indonesia-based company primarily engaged in integrated steel manufacturing. Its products include hot-rolled coil, cold-rolled coil, wire rod, steel billet, steel bar, steel section, steel pipe and steel slab. Its manufacturing facility is located in Cilegon, Indonesia. The Company is also engaged in other businesses, such as real estate and hotel, engineering and construction, port management, information technology services, hospital operation as well as electricity and water distribution. Its subsidiaries include PT KHI Pipe Industries, PT Krakatau Wajatama, PT Meratus Jaya Iron & Steel, PT Krakatau Daya Listrik, PT Krakatau Tirta Industri, PT Krakatau Bandar Samudera, PT Krakatau Industrial Estate Cilegon, PT Krakatau Engineering, PT Krakatau Information Technology, PT Krakatau Medika and PT Krakatau National Resources.