In the field of metallurgy, EIL can render a comprehensive range of consultancy and engineering services for zinc, lead, aluminium, copper, cadmium, silver, nickel, magnesium, titanium, etc. and also for sponge iron.  In addition, EIL can provide services for mine development and beneficiation plants.  The specialised services  include studies for scaling up of Pilot Plant to Industrial Plant, process selection, optimisation of the process parameters, energy conservation, exploration, geostatistical ore reserve estimation, hydrogeological and geotechnical analysis, mine design and pit optimization etc besides design, engineering, project management and other services.

EIL has served major metallurgical and mining companies in India and abroad including NALCO, Hindustan Zinc Ltd, Hindustan Copper Ltd, RSMML, GMDC etc