Ardani Alwan

• Lead inspection, sampling, and sample preparation activities for nickel ore (saprolite & limonite), coal, gold ore, copper concentrate, nickel concentrate, and metal products (Fe, Ni, Cu, Co), achieving ≥ 98% on-time operational performance and zero critical deviations from ASTM/ISO standards. • Control laboratory analysis quality (AAS, XRF, ICP, Fire Assay) with 100% compliance within Certified Reference Material (CRM) tolerance and ≤ 2% repeat test discrepancy. • Manage operational teams across job sites in Sulawesi, Maluku, and Kalimantan, achieving ≥ 95% team KPI performance and maintaining zero Lost Time Injury (LTI). • Validate and issue laboratory test reports with ≥ 97% Turnaround Time (TAT) compliance based on client SLA and ≤ 1% reporting error rate.

• Optimized beneficiation parameters (grinding, classification, dewatering), improving mineral recovery by 10% compared to the baseline. • Conducted real-time monitoring of feed quality and process stability, achieving 90% process control effectiveness. • Contributed to the design of a new feed preparation flow, improving energy efficiency by 8% and feed particle size consistency. • Prepared metallurgical analysis reports and technical recommendations for plant-scale process development decisions. • Supported continuous improvement initiatives and adoption of eco-friendly technologies in HPAL and hydrometallurgical systems.

• Provide daily technical support to field and engineering teams during design, procurement, and construction phases. • Coordinate with engineering, procurement and construction teams to ensure smooth flow of technical information. • Analyze and review engineering drawings (IFC/Shop Drawings), technical specifications, and other technical documents and assist in the preparation of RFI (Request for Information) and TQ (Technical Query). • Assist in commissioning and handover process if required and provide solutions to technical issues related to installation, equipment, or material specifications.

• Monitored and optimized feed preparation & mineral processing across four pilot projects, achieving 90% process effectiveness and reducing feed variability by 15%. • Identified and optimized key parameters (pH, solid density, residence time), increasing recovery rates by 8–12% during leaching and flotation stages. • Developed 5 process flow diagrams and 3 metallurgical simulation models using METSIM & HSC Chemistry as bases for new process design. • Prepared 6technical reports and 2 feasibility studies for R&D and investment decision-making. • Evaluated technical data from testing and pilot operations to deliver process improvement recommendations. • Ledcross-functional collaboration (R&D, Operations, QA/QC), achieving ~10% reduction in operational costs from baseline.

• Supervised >3,000 tons/day ore handling & feeding operations with 92% process effectiveness, ensuring continuous autoclave HPAL supply. • Optimized process parameters (solid density, pH, slurry feed rate), improving nickel & cobalt recovery by 7% compared to baseline. • Implemented real-time data monitoring through fleet management (GPS Dispatch) for 40+ heavy equipment units, reducing waiting time by 10 minutes per cycle. • Developed 4 new operational SOPs for raw material and acid leaching supervision, achieving 98% compliance with production and HSE standards. • Coordinated cross-department activities (Logistics, Maintenance, Control Room) to ensure 24/7 material availability and support >2,500 tons/day MHP production targets.

• Supervising and leading a team of workers involved in the production of mixed hydroxide precipitate. • Ensuring that the production process is carried out efficiently and safely, meeting quality and quantity standards. • Monitoring the quality of the mixed hydroxide precipitate to ensure it meets specifications and regulatory standards. • Ensuring that safety protocols and regulations are followed at all times to prevent accidents and maintain a safe working environment.

• Leading and supervising a team of production workers on the designated line. • Ensuring smooth and efficient workflow by assigning tasks, setting priorities, and managing work schedules. • Monitoring the quality of products being produced on the line and implementing quality control measures to meet quality standards.

• Managing and optimizing the extraction of tin ore from mining operations, ensuring efficient recovery methods. • Overseeing the smelting and refining processes to extract pure tin from ore concentrates. • Researching and developing tin-based alloys to meet specific industry requirements, such as solder alloys, pewter, or bronze. • Implementing quality control measures to ensure the purity and quality of tin and tin alloys produced.

• Supervise and optimize the extraction of tin ore from mining sites, ensuring efficient and safe extraction methods. • Oversee the crushing and grinding processes to prepare the ore for further concentration. • Manage the concentration process, which may involve techniques like gravity separation, flotation, or magnetic separation to enrich tin content. • Implement rigorous quality control measures to ensure the tin concentrates meet specific purity and grade standards.

Final Project : Analysis of the effect of thermomechanical treatment on the mechanical properties of low carbon steel ST 42