Moses Mihir Duggirala

BHQ Operations | Pilot Plant Incharge | JSW Steel Ltd. – Vijayanagar Works As the Pilot Plant Incharge at JSW Steel's BHQ (Banded Hematite Quartzite) operations, I lead end-to-end pilot-scale beneficiation initiatives aimed at unlocking value from complex iron ore resources. My role encompasses a strategic blend of technical execution, plant optimization, infrastructure development, and cross-functional coordination. Key Responsibilities: • Pilot Plant Operations: Oversee the planning, execution, and stabilization of beneficiation circuits for various BHQ ore sources on a pilot scale, ensuring scalability and feasibility for full-scale implementation. • Process Development & Optimization: Design, test, and optimize flowsheets involving unit operations such as grinding, classification, spiral concentration, Low Intensity Magnetic Separation (LIMS), High Gradient Magnetic Separation (HGMS), and column flotation. • Infrastructure Development: Spearhead the transformation of the pilot facility into a world-class R&D and process innovation center by upgrading infrastructure, instrumentation, and process control systems. • Project & Budget Management: Manage the complete budget lifecycle including revenue, spares, consumables, and special CAPEX. Align procurement and upgrades with financial planning and operational priorities. • Collaboration with Technology Providers: Liaise with leading global and domestic technology providers to evaluate and integrate advanced beneficiation solutions and equipment, keeping the facility aligned with the latest industry trends. • Performance Monitoring & Reporting: Track plant KPIs, generate technical reports, and support data-driven decision-making across the BHQ Plant, R&D and operations teams. • Strategic Process Structuring: Drive holistic structuring of the pilot plant process to ensure efficient material flow, effective resource utilization, and high throughput with targeted monthly production.

Role and Responsibilities • Lead commissioning activities for mineral and mining equipment, ensuring timely and safe startup. • Collaborate with client's on-site team to prepare and execute Performance Guarantee (PG) tests for supplied equipment. • Optimize process parameters to enhance overall grades, recoveries, and yield, resulting in improved productivity. • Conduct thorough analysis to identify areas for enhancement and define scope of work for future optimization initiatives. • Develop and implement corrective actions to address operational bottlenecks and improve equipment efficiency. • Provide technical expertise to operations team for troubleshooting and resolving equipment-related issues. • Document commissioning and optimization activities, including test results, procedures, and recommendations. • Identify opportunities for cost savings and propose improvements to reduce operational expenditures. • Ensure compliance with industry standards, safety regulations, and environmental policies. Clients: Hindustan Zinc Limited (India), Tata Steel (India), Jindal Steel and Power Limited (JSPL)

Process Plant Manager (Lead & Zinc Beneficiation Plant) Overall management of Lead and Zinc beneficiation plant operations, encompassing Dry circuit, Wet circuit, Dewatering circuit, Tailing handling. 1. Strategic Planning & Performance • Participated in board meetings with business owners to review Key Performance Indicators (KPIs). • Set and achieve yearly and monthly production targets. • Established yearly KPIs for plant and departmental performance. 2. Interdepartmental Coordination • Coordinated with other departments to optimize production and minimize downtime. • Planned and executed scheduled maintenance. 3. Safety & Housekeeping • Fostered a culture of workplace safety and housekeeping. 4. Manpower Management • Supervised and managed all department plant personnel both expats and local staff. 5. Commissioning Experience • Commissioned Tin and Zinc beneficiation process plant at Century Mining Limited, Riruwai, Kano State, Nigeria. • Successfully stabilized grinding circuit (rod mill and ball mill). • Commissioned and optimized equipment, including: a. In-line Jig. b. Spiral concentrators. c. Tables. d. Flotation circuit. e. High-intensity magnetic separators. • Defined reagent ranges for zinc and tin separation in flotation circuit. • Stabilized flotation circuit operations.

1. Project Experience (Production and Commissioning) • Key team member in the Lead and Zinc beneficiation plant expansion project. • Commissioning of 2 x 45m² Ceramic Disk Filters for both Lead and Zinc concentrates. Key Responsibilities • Assist and relieve the Process Plant Manager in their absence, assuming full responsibility. • Manpower Management. a. Supervise expat and local staff. b. Train and develop local staff. 2. Production Optimization • Devise strategies to achieve production and quality targets. • Ensure alignment with company’s business plan. 3. Research & Development • Contribute to new process development. • Create process sheets, mass balances, and modify process flows. 4. Troubleshooting and Maintenance • Resolve operational issues. • Plan scheduled maintenance and breakdown activities. 5. Scheduling and Reporting • Create shift schedules for engineers, casuals, and manpower. • Prepare daily production reports and other day-to-day reports.

1. Shift Operations Management • Start-up and stoppage of plant operations. • Oversee grinding, flotation, dewatering, and reagent areas. 2. Quality Control • Ensure concentrate quality/grades and recoveries meet targets. 3. Safety and Housekeeping • Maintain a safe working environment. • Enforce housekeeping standards. 4. Manpower Management • Supervise and coordinate shift personnel. 5. Interdepartmental Coordination • Collaborate with supporting departments (maintenance, laboratory, etc.). 6. Compliance and Reporting • Adhere to standard operating procedures (SOPs). • Prepare and submit shift reports.

J.P. Mukherji & Associates Pvt. Ltd., located in Pune, is a prominent consultancy firm specializing in the cane sugar manufacturing and co-generation sectors. With over 35 years of experience, the firm provides comprehensive engineering and consultancy services, ensuring adherence to industry standards, as evidenced by its ISO 9001:2000 certification from SGS India Pvt. Ltd. The organization is dedicated to the design, commissioning, and erection of sugar manufacturing facilities, both domestically and internationally. Roles & Responsibilities: 1. Process Documentation Review • Conducted detailed assessments and revisions of Process Flow Diagrams (PFD), Process and Instrumentation Diagrams (PID), and associated documentation to ensure accuracy and compliance with industry standards. 2. Mass and Steam Balance Calculations • Performed comprehensive mass and steam balance calculations to optimize process efficiency and resource utilization, ensuring alignment with operational requirements. 3. Project Reporting • Actively participated in the preparation of project update reports and various official documentation, including the Detailed Engineering Report (DPR) and Detailed Engineering Services (DES) Report, ensuring timely and accurate communication of project status to stakeholders. 4. Collaboration with Marketing and Tendering • Collaborated closely with the marketing department to develop and refine offer documents and work orders. Responsible for reviewing and validating tender documents to ensure compliance with project specifications and client requirements. 5. Cross-Functional Coordination • Engaged in cross-functional coordination with engineering, procurement, and project management teams to facilitate the seamless execution of projects from design through to commissioning. 6. Quality Assurance • Ensured adherence to quality control measures and regulatory compliance throughout the project lifecycle, contributing to the company’s reputation for ex

Successful test work of Introduction of Sodium Benzoate and Urea as a promoter in Sillimanite flotation under the guidance of Mr. VV Ramarao, Dr. DMR Sekhar Key Responsibilities: 1. Flotation Process Development • Conducted bench-scale flotation tests using Denver and InSmart flotation cells, optimizing process parameters to enhance recovery rates and concentrate quality with the new promoters. 2. Reagent Optimization • Introduced and evaluated the efficacy of Sodium Benzoate and Urea as promoters in Sillimanite flotation, analyzing their impact on mineral separation and flotation kinetics. 3. Magnetic Separation Operations • Operated bench-scale magnetic separators (InSmart) to effectively separate magnetic and non-magnetic materials, optimizing the separation efficiency through process adjustments. 4. Comminution Testing • Conducted tests using ball mills and rod mills to assess the impact of particle size distribution on flotation performance and overall recovery of valuable minerals. 5. Sampling Techniques • Implemented rigorous sampling methodologies, including refill sampling, coning and quartering, and random sampling, to ensure representative samples for analysis and process optimization. 6. Reagent Preparation and Handling • Prepared flotation reagents and maintained proper handling protocols, ensuring accurate dosing and effective reagent performance during flotation processes. 7. Housekeeping and Safety • Ensured adherence to safety standards and best practices in laboratory housekeeping, contributing to a safe and efficient working environment.

I pursued my M.Tech in Mineral Processing Engineering at the Department of Chemical Engineering, Andhra University, Visakhapatnam, India (2013-2015). Established in 1926, the university is one of India's oldest institutions. During my studies, I worked on a significant project in collaboration with M/s Trimex Sandes Private Limited, Srikakulam, focused on the flotation of Sillimanite. The project successfully implemented Hydrotropes, using Sodium Benzoate and Urea as promoters. We conducted experiments on beach sand containing 22-25% Sillimanite, with gangue minerals such as clay, quartz, ilmenite, rutile, and zircon. The goal was to enhance recovery and achieve higher grade. We optimized dosages of Sodium Silicate (depressant) and Oleic Acid (collector) to improve flotation efficiency. Additionally, I published two research papers: Soap Flotation: A Brief Review and Sodium Benzoate and Urea as Promoters in Sillimanite Flotation in the Journal of Modern Chemistry & Chemical Technology.

I completed my Bachelor’s degree (B.Tech) in Chemical Engineering from Sathyabama University, Chennai, Tamil Nadu, India. During my final year, I had the opportunity to undertake a major project titled "Beneficiation of Graphite Ore by Flotation", which I carried out at the National Metallurgical Laboratory (Madras Centre) under the guidance of Dr. T.V. Vijay Kumar, Scientist, for a duration of five months. Additionally, I gained valuable industry exposure through in-plant training at the Eshidiya Phosphate Ore Beneficiation Plant, operated by the Jordan Phosphate Mines Co. PLC, Jordan. I was also recognized for academic excellence, securing the highest marks in the subject "Chemical Plant Utilities" during the 2011-2012 academic year.