Letta Mengesha Aga, Manager Business Development

Letta Mengesha Aga

Manager Business Development

LMA consultancy

Location
Ethiopia
Education
Master's degree, business administration
Experience
32 years, 7 Months

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Work Experience

Total years of experience :32 years, 7 Months

Manager Business Development at LMA consultancy
  • Ethiopia
  • My current job since November 2014

Consult mining compancies in improving their operation like optimize metal recovery, chemical consumptions, consumables, training on operation and safe operation procedure, on enviromentally friendly operation. Apart these valuating exploration decoments metallurgical parts etc.

lecturer at unity university, mining
  • Ethiopia
  • My current job since September 2015
Consultant at Maaden gold & base metal company
  • Saudi Arabia
  • December 2012 to October 2014

Provide consultancy services to As Suq mine in a capacity of "Consultant Mill Superintendence". Where the scope of service includes:
Serving the company as a counterpart during plant, laboratory erection, heap leach pad construction.
Consulting and leading the commissioning team (commissioning manager), when both cold & hot commissioning were conducted and completed with success and solving serious problems associated with the crushing plant.
Superintend the entire process plant, with the aim of optimizing metal recovery, insuring constant plant availability, process and labor efficiency. Ensure that all operations are carried out in accordance with approved safety & environmental standards & regulations. Responsibility includes managing operations, mechanical & electrical maintenance, metallurgical & assay laboratory and water treatment & supply. In addition carry out duties and responsibilities of mine manager during his absence.

Managing Director at Open
  • January 2009 to December 2009

Plc.

Director
  • January 2005 to December 2008

Responsible for all facets of the gold processing operations, Crushing, Grinding, Thickening, Leaching, Adsorption, Desorption, Bullion Productions, Tailings disposal and Tailing Dam Management. Planning, organizing, directing and control all mill production and metallurgical support activities, such as Maintenance and utility services. Give special attention, to all aspects of safety rules & regulations. Ensures the application of rules, company policies, regulations and institutes procedure where deemed necessary. Ensure that all resources of the operations are coordinated and deployed efficiently and effectively for the successful achievement of its objectives.
Sapt.2004-Jan 2005Acting Director Metallurgy Operations, MIDROC GOLD Mine Plc.
All activity mentioned above for Director Metallurgy Operation excluding plant maintenance & utility related activities.

Assistant Director
  • April 2003 to September 2004

MIDROC GOLD mine Plc.
Plans, Directs, Organizes, Controls and supervises the functions and personnel in the metallurgy and analytical section of the laboratory. Provides assistance/advice/ on metallurgical projects or problems within the processing plant. Ensure authenticity of assays and reporting. Assists senior director metallurgy in all aspects and learn from him.

Senior Manager
  • September 2000 to April 2003

MIDROC Gold Mine Plc.
Responsible for day to day goldprocess plant operation, Supervision and operation of the plant within the budget & cost control. Plans, Directs & Controls the activities of the members of the process plant operating staff to ensure maximum throughput & recovery as well as plant safety. Improving the efficiency of systems, processes, plant & equipment and assisting in the development & the implementation of any new system.

Supervising Engineer
  • March 1997 to September 2000

MIDROC GOLD Mine Plc.
Responsible for process plant operation and production to the best performance of all units. A part of this routine there was upgrading of some units of the plant, where all necessary data and recommendation was made in details for better decision and implementations were led to the end successfully. Basically an improvement in performance of grinding, gravity and sizing units were some of sounding achievements and upgrading carbon in pulp unit was another task which successfully accomplished, cost reduction, safety were the end result which can be highlighted as a success also.

Supervising Engineer at ETHIOPIAN MINERAL RESOURCES DEVELOPMENT CORPORATION, LEGADEMBI GOLD MINE AND LATER AT ADOLA GOLD ENTERPRISE
  • September 1996 to March 1997

Adola Gold Mine Enterprise
Supervise rehabilitation jobs and insure better handling of concentrate, amalgam, dore and recovery at each stage to the final dore production.

Senior Metallurgist
  • August 1994 to September 1996

Legadembi Gold Mine, later Adola Gold Mine Enterprise
Plant metallurgical activities, routine plant performance & parameter evaluation & control, Major duty is ensuring that the treatment plant meets its metallurgical target parameters, recovery throughput rate in an effective and efficient manner. Leads the team working on optimization of plant parameters and determine optimum chemicals and grinding media consumptions. Achievements on these were with big value.

Head
  • September 1993 to August 1994

Kiln Erection, Legadembi Gold Mine, later Adola Gold Enterprise
Organizing and leading the erection and construction of the plant and handle all activities as a counter part to the contractor. Participate on design and equipment selections as well.

Plant Metallurgist
  • September 1992 to September 1993

, Legadembi Gold Mine, later Adola Gold Enterprise
Carries out plant test works and general metallurgical test projects (bench scale, pilot plant & in plant) for routine plant performance and parameters optimization &control.

Senior safety Officer
  • September 1991 to September 1992

Legadembi Gold Mine, later Adola Gold Enterprise
Organizing and establishing safety and health services for Legadembi Gold Mine,
Developing Mine safety regulations for Legadembi Gold Mine, Introduce these regulations and implement them to create safe working conditions, Organize and establish different safety groups, such as fire brigade and first aid groups and related tasks.
The mine was just newly opened and establishing this department to the standard was the major task and it was done to the best required.

Production supervisor
  • June 1990 to September 1991

Legadembi Gold Mine, later Adola Gold Enterprise
Plan production and manage plant operation in general. Parameter optimization was one of the
key activities, as the plant was just started and optimizing chemicals, grinding media, were the
jobs which were carried on and successfully accomplished.

Engineer II
  • August 1988 to June 1990

, Legadembi Gold Mine later Adola Gold Enterprise
I joined the company above at final stage of feasibility study and during pilot plant operations stage, Participated in selecting the design parameters for the industrial plant. All necessary tests were carried on to be assisted in determining the design parameters, equipment selections and so on.
Participated on erection activities of the industrial plant.
Participated on all stages of commissioning activities, (cold & hot commissioning).
Actively involved in process simulation and parameter optimization.
Lead and participate on plant operators training, both in class and on job training.

Education

Master's degree, business administration
  • at 2017 Unity University
  • June 2015

High school or equivalent, Mineral Processing Engineering
  • at Donetsk Polytechnic Institute
  • June 1988

Master's degree, Mineral processing engineering
  • at Donetsk Politechnic Institute
  • June 1988
High school or equivalent, Mathematics
  • at Addis Ababa University
  • June 1982

High school or equivalent,
  • at Elementary &secondary school
  • June 1980

granted in the field of Pre-Feasibility and Feasibility Studies for any Mineral Pertaining to Mining Engineering.

Specialties & Skills

BUDGETING
COST CONTROL
DIRECTING
GOLDMINE
NETSCAPE ENTERPRISE SERVER
OPTIMIZATION
ORGANIZATIONAL SKILLS

Languages

English
Expert
Russian
Expert