Terracing work: digging, grading of construction sites, opening of trenches, removal of rocks, destruction with explosives, etc.
Preparation of sites for mining: overburden removal and other work of planning and preparation for mining sites
Work of general installation
Assembling of elements of metallic structures, not made by the unit making the works
Reconditioning of engine of automobile vehicles
Retail trade of seeds, fertilisers, phytosanitory products, etc.
Retail trade of solid fuels such as coal, heating wood, charcoal, etc.
Development of projects requiring acoustic engineering, technics of air-conditioning, cooling, refrigeration, sanitation and fight against pollution, etc.
Geological and prospecting activities: observation and surface measurement for getting information about the subsoil's structure and location of deposits of oil, natural gas, ores and ground waters
Do-it-yourself businesses and d.i.y. shops of common building materials
Retail trade in solid, liquid and gaseous fuels, with the exception of engine fuels, in specialised shops