Summary
Overview
Work History
Education
Skills
Work Preference
Languages
Accomplishments
Timeline
Declaration
Personal Information
Debasmita Mistry

Debasmita Mistry

Mining Professional
Kolkata

Summary

With over 12 years and 5 months of professional experience in the coal mining industry, I lead and manage the exploration, geological mapping, drill planning, and geophysical log interpretation of coal mining projects in Indonesia. I hold a Master of Science Technology in Applied Geology from IIT ISM and a Minex certification from GEOSLOPE International. I look after the assessment of reserves in auctionable coal blocks, ensuring accurate estimation and compliance with regulatory standards. My core competencies include using a wide range of software tools such as Wellcad, LogPlot, MapInfo, Global Mapper, Surpac, Minex, Minescape, and Xpac to develop and optimize coal mining models, plans, and schedules. I have extensive experience in resource and reserve calculation, mine planning and scheduling, geological and geophysical data analysis, and geological modeling. I oversee the quality control, production, and barging processes from pit to port, ensuring adherence to JORC standards and industry best practices. My technical expertise also includes geotechnical drilling and sampling—particularly in rippability assessments and mine geotechnical studies—as well as hydrogeological fieldwork such as soil sampling, aquifer performance tests, infiltration tests, and environmental water sampling. I am proficient in AOP report preparation and MIS-based production data analysis. With a strong background in strategic planning, project management, and team leadership, I strive to deliver high-quality and sustainable coal mining solutions that meet the needs and expectations of clients and stakeholders.

Overview

14
14
years of professional experience
8
8
years of post-secondary education
2
2
Languages

Work History

Deputy General Manager

Triveni Sainik Mining Pvt Ltd
09.2024 - Current
  • Reporting to- Director
  • Assignment location- Barkagaon, HZB, JH
  • Preparation of mine plan
  • Managed multiple projects simultaneously while maintaining focus on meeting key milestones.
  • Participated in planning process to achieve corporate objectives.
  • Fostered and promoted cooperative and harmonious working climate conducive to maximum employee morale, productivity, and effectiveness.

Manager Mine Plan (HOD Engineering)

PT. Thriveni Indo Mining
04.2023 - 08.2024
  • Reporting to: COO & Director
  • Assignment location: long-term planning & scheduling, Budget and project cost preparation for PT.TIM, Satui, Kalsel, Indonesia.
  • Join mine plan & scheduling with client (PT.Arutmin Indonesia ,PT.Cakrawala Langit Sejatra,PT.Wahana,PT.Theiss Indonesia) for long term purpose(1year,3year,5year,LOM).
  • Yearly and 3months rolling plan, Reserve estimation, quality & material balance, scheduling using Minescape & SPRY.
  • KPI meeting, monthly & yearly budget meeting with operational team.
  • Guide team member for software training and developing their interest for strategic planning.
  • Monitoring daily, weekly as well as monthly plan & discussion with production team.
  • Daily, weekly, monthly cost analysis (budget vs actual).3mrp & yearly budget preparation.
  • Business development works for several projects with team.
  • Sequence blasting monitoring, design blasting using shot plus& synchronizes with mine plan.
  • Assignment location: long-term planning & scheduling, Budget and project cost preparation for PT.TIM, Satui, Kalsel, Indonesia.

Manager Mine Plan

PT. Darmahenwa
01.2021 - 04.2023
  • Reporting to - COO & Director
  • Assignment location: Mid-term & long-term planning & scheduling, Join mine plan (KPC ,Arutmin, PAMA) cost analysis for budget vs actual (Daily, weekly & monthly), Budget preparation for PT. Darmahenwa (Asam Asam, Kintap, Jumbang Eco coal , Satui project at Kalsel & Bengalon project under KPC at Kaltim);Indonesia.
  • Reserve estimation, long-term and short-term planning (Pit, Disposal, dewatering system & haulage road), reserve estimation, quality & fault model update with Strat model by using Minescape & SPRY & Resource calculation, evaluation of geological model, Basecase preparation for 6 projects at Kalsel & Kaltim Indonesia under PT .Arutmin Indonesia, KPC, PT.CLS (Bumi resources group).
  • Material balance calculation.
  • Strategic mine plan for cost saving activities for all 6 projects.
  • Shorter dump, lead & lift simulation to save fuel, Slurry pump vs load & haul simulation for cost saving.
  • Stock reconciliation in jetty & volume calculation from survey data.
  • Monitoring daily, weekly as well as monthly plan & discussion with production team.
  • Daily, weekly, monthly cost analysis (budget vs actual).3mrp & yearly Base case preparation & present to COO & BOD.
  • Assignment location: Mid-term & long-term planning & scheduling, Join mine plan (KPC ,Arutmin, PAMA) cost analysis for budget vs actual (Daily, weekly & monthly), Budget preparation for PT. Darmahenwa (Asam Asam, Kintap, Jumbang Eco coal , Satui project at Kalsel & Bengalon project under KPC at Kaltim);Indonesia.

Manager Mine Plan

PT. Thriveni
07.2019 - 01.2021
  • Reporting to: COO & Director
  • Assignment location: Mid-term & long-term planning & scheduling, cost analysis for budget vs actual (Daily, weekly & monthly), Budget preparation for PT.MBB & PT.MMI Jambi, Sumatra Indonesia.
  • Resource evaluation for PT.Minimex under PT.Thriveni & PT.MBB under PT.Temperai energy.
  • Reserve estimation, long-term and short-term planning (Pit, Disposal, dewatering system & haulage road), reserve estimation, quality & fault model update with Strat model by using Minescape Mine scheduling using Spry.
  • Monitoring daily, weekly as well as monthly plan & discussion with production team.
  • Daily, weekly, monthly cost analysis (budget vs actual).3mrp & yearly budget preparation.
  • Daily MIS report preparation.
  • Monthly budget preparation for evaluating project profit & loss along with monthly mine plan and scheduling.
  • Business development projects reserve, Mine plan & scheduling to evaluate projects.
  • Assignment location: Mid-term & long-term planning & scheduling, cost analysis for budget vs actual (Daily, weekly & monthly), Budget preparation for PT.MBB & PT.MMI Jambi, Sumatra Indonesia.

Senior Mine Plan & Engineering Geologist

PT. Supra Bara Energi (SBE), Berau; Mitra Jaya Group
05.2017 - 07.2019
  • Reporting to: Director.
  • Assignment location: SMJ Coal exploration & mine site, Tanjung Redeb, Berau, East Kalimantan & Site Melak, East Kalimantan, Indonesia.
  • Resource calculation, evaluation of geological model.
  • Reserve estimation, long-term and short-term planning (Pit, Disposal, dewatering system & haulage road), reserve estimation, quality & fault model update with stratmodel by using Minescape and Minex.
  • Material balance calculation.
  • Stock reconciliation in jetty & volume calculation from survey data.
  • Mine scheduling using Spry & Xpac.
  • Monitoring daily, weekly as well as monthly plan & discussion with production team.
  • Prepare blast design by Shot plus and Minescape software for maximum energy with zero risk.
  • Blast report preparation with cost analysis of blasting.
  • Monitoring and ensure daily, weekly and monthly production and financial targets are met.
  • Preparation of quality blend plan for vessel.
  • Data preparation for RKAB, TRIWULAN for every year & SOP preparation.
  • Monitoring & control budget plan/forecast against actual, build good relationship with client, owner, government & community.
  • Proficient in managing all exploration activities from project identification, reconnaissance survey, mapping, drilling, geophysical logging.
  • Monitoring exploration work for various concession (Melak, Sumatra), validate data, seam correlation, giving exploration plan, geophysical logging data validation with drilling & validating Strat model.
  • Assignment location: SMJ Coal exploration & mine site, Tanjung Redeb, Berau, East Kalimantan & Site Melak, East Kalimantan, Indonesia.

Resource Geologist

Geovale Services private limited
09.2015 - 05.2017
  • Reporting to: Director
  • Assignment location: Depends on project Assignment location: Anywhere in India & Worldwide, Especially on Thriveni Earth Movers site for Pakri Barwadih Project.
  • Assist in Pakri Barwadih project, data management, resource estimation & pit optimization.
  • Resource estimation of Sagasahi project for Thriveni earth movers, JSPL& Essar mineral.
  • Talaipalli block resource & reserve calculation.
  • Sagasahi block resource and reserve estimation.
  • Mudhvay & Goyla limestone block resource estimation.
  • Turkey manganese block resource development.
  • Netrabandha block resource estimation.
  • Hydro geological project in Howrah Panchla for pumping test & EIA, EMP study in site area.
  • Hydro geological project in Lalkuan, Tollygaunge golf club, Grand bharat project.
  • Assignment location: Depends on project Assignment location: Anywhere in India & Worldwide, Especially on Thriveni Earth Movers site for Pakri Barwadih Project.

Geologist Advisor & Operational Manager

PT. Sumber Mitra Jaya (SMJ)
09.2011 - 09.2015
  • Reporting to: Project Manager & Director.
  • Assignment location: SMJ Coal exploration & mine site, Tanjung Redeb, East Kalimantan & Tanjung Enim, Sumatra, Indonesia.
  • This was my first project started with geological mapping in dense rain forest covered area for coal & finished with 75000 meter drilling along with geophysical logging.
  • Prepared initial resource & reserve model.
  • Act as well-site geologist, locating open hole and coring hole drilling points, predicting depth for touch coring holes, collecting core sample and checking the coal recovery.
  • Geophysical logging as a well-site Logging coordinator to set the comparison between in-situ drilling data and logging data sampling according JORC rule, QC measurements, etc.
  • Tracking coal seams from drill data, daily report submission with support of log plot, well cad & borehole manager software.
  • Prepare technical and assessment report comparing logging and drilling data (core cuttings, core samples VS geophysical log).
  • Detailed geological field mapping for coal exploration.
  • Supervision of cone penetration test (CPT Test) in swampy area for mine disposal plan & Geotechnical study for mine slope stability concern with GRM.
  • Conducted slake durability test in site.
  • Geotechnical risk, safety factor analysis for slope stability by collecting data in site area along with rock property analysis.
  • Rippability assessment through rock sample collection, preparation for laboratory analyses and testing of rock sample in Lab in association of GRM & ITB, Indonesia.
  • Core logging/Geotechnical Logging /Geophysical Logging for site Berau, site Melak, site Tanjung enim Sumatra.
  • Finding out the Structural complexity, attitude of the beddings throughout the concession for better JORC drilling plan with accurate resource calculation.
  • Planning and coordinating for field logistics.
  • Controlling production, based on mine plan to achieve monthly & yearly target by controlling loss time & other several parameters.
  • End of 2013 started a new role as an operational manager.
  • Start managing various mining activities, sub-contractors & personnel including mining engineers, mine foreman, surveyors, drillers and operators.
  • Ensure maximum availability and utilization of HEMMs being used in mines i.e. Komatsu PC 1250 excavators, Komatsu D 375 Dozer cum Rippers and HD-465 Heavy Dump trucks.
  • Lost time analysis for production evaluation.
  • Comparison of VHMS, Survey data & truck count to measure actual achievement by production action team.
  • Analyzing MA (Mechanical availability), PA (Physical availability), UA (Utilization availability) EU (Effective utilization) to evaluate production achievement.
  • Monitoring and preparing report for hour-meter and assessment of productivity of each unit and deliver to director daily, weekly, monthly & yearly basis.
  • Advise/report management the risks those may affect project profit, costs.
  • Ensuring 'Zero Accident' in and around the mines by maintaining strict compliances with OHSAS, HSEQ and with all safety acts, rules and regulations.
  • Maintaining sound industrial relation and knowledge exchange with expert from Australia, Thailand etc.
  • Preparing short term & long term mine plan in Minescape & Minex.
  • Updating coal model as well as demarcating monthly, weekly & short term plan with survey team & monitoring overcut & undercut data to guide production people.
  • Quality control from pit to port.
  • Monitoring channel sampling.
  • VHMS data download & asses data for monitoring truck performances & guide R&M department & United tractor.
  • Production department data handling, daily, weekly monthly report preparation and assess daily production.
  • Evaluation plan vs actual production, productivity unit, performance operator.
  • Coordinate between Logistics department, R&M department, Production, Mine plan & engineering, Coal handling plant (CHPP).
  • Monthly, quarterly & yearly site performance presentation to director.
  • Assignment location: SMJ Coal exploration & mine site, Tanjung Redeb, East Kalimantan & Tanjung Enim, Sumatra, Indonesia.

Education

Master of Science Technology (MSc. Tech) - Applied Geology

Indian School of Mines (IIT)
07.2008 - 06.2011

B Sc - Geology (Hons.), Math, Chemistry, English

University of Calcutta
06.2005 - 05.2008

10+2-th - Physics, Math, Chemistry, English

West Bengal Board
05.2002 - 06.2004

Skills

SURPAC

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Work Preference

Work Type

Full Time

Important To Me

Flexible work hours

Languages

Bengali
Indonesian
English
Hindi

Accomplishments

  • Led Engineering Operations Across Multiple Mining Sites: Successfully managed mine engineering teams across five mining operations under PT Darma Henwa Indonesia, overseeing planning and execution of 15 million BCM movement per month.
  • Delivered Strong Mine Plans and Exceeded Budget Goals: Developed robust and innovative mine plans that aligned with budgetary targets through strategic thinking and a solid understanding of operational demands.
  • Excelled in Mine Design and Scheduling: Demonstrated above-average proficiency in mine design, planning, and scheduling, contributing to operational efficiency and project success.
  • Enabled Production Improvements Through Engineering Support: Collaborated closely with the production department to restructure mine designs, facilitating smoother and more efficient mining operations, notably enhancing the performance at Satui Coal Mine.
  • Recognized for Leadership and Team Building: Consistently acknowledged for natural leadership qualities, team collaboration, and the ability to uplift workplace morale.
  • Praised for Technical and Strategic Expertise: Endorsed by senior management and cross-functional peers as a valuable asset with strong technical knowledge, logical thinking, and the ability to drive projects to success.

Timeline

Deputy General Manager - Triveni Sainik Mining Pvt Ltd
09.2024 - Current
Manager Mine Plan (HOD Engineering) - PT. Thriveni Indo Mining
04.2023 - 08.2024
Manager Mine Plan - PT. Darmahenwa
01.2021 - 04.2023
Manager Mine Plan - PT. Thriveni
07.2019 - 01.2021
Senior Mine Plan & Engineering Geologist - PT. Supra Bara Energi (SBE), Berau; Mitra Jaya Group
05.2017 - 07.2019
Resource Geologist - Geovale Services private limited
09.2015 - 05.2017
Geologist Advisor & Operational Manager - PT. Sumber Mitra Jaya (SMJ)
09.2011 - 09.2015
Indian School of Mines (IIT) - Master of Science Technology (MSc. Tech), Applied Geology
07.2008 - 06.2011
University of Calcutta - B Sc, Geology (Hons.), Math, Chemistry, English
06.2005 - 05.2008
West Bengal Board - 10+2-th, Physics, Math, Chemistry, English
05.2002 - 06.2004

Declaration

I solemnly declare that the above information is true/ correct and I understand that in the event of the information found to be incorrect after my appointment, I shall be liable to be dismissed from service.

Personal Information

  • Date of Birth: 03/11/86
  • Gender: Female
  • Marital Status: Married
Debasmita MistryMining Professional