HAKA Team! from Department of Chemical Engineering ITB won 1st place in the 2021 POISE Safety Competition organized by Universitas Gadjah Mada on November 26, 2021. This team was chaired by Bryan (13018079) with members Timothy Weslie (13018044) and Vincent Felixius (13018100) who were directly mentored by Hary Devianto, ST, M.Eng., Ph.D. The scientific work presented by this team is entitled “Achieving Zero-Time Overhaul System And Green Nickel Industry By Implementing Inherently Safer Design And Condition-Based Maintenance”, which aims to complete case studies of occupational health and safety in the nickel industry and create a friendly nickel industry. environment in Indonesia. The main idea brought by the HAKA team! is the application of an inherently safer design and other layers of protection in operating units used in ferronickel plants, supporting a zero-time overhaul system by implementing an actual condition monitoring system, and applying ferronickel slag waste as an ameliorant that can increase soil nutrient content in the area. Sulawesi.