Mining of other metallic minerals
Economic units mainly engaged in the exploitation and processing of minerals valued primarily for their content of molybdenum, magnesium, palladium, cobalt, tin, tungsten and other non-ferrous metallic minerals not class…
Mining of other clays and other refractory minerals
Economic units mainly engaged in the exploitation and processing of other refractory and non-refractory clays, industrial clays such as Fuller's earth and magnesite, and other refractory minerals such as bentonite, figul…
Mining of non-metallic minerals for chemical products
Economic units primarily engaged in the exploitation of minerals valued mainly for their nitrogen and potassium content; the exploitation of bloedite, kieserite, thenardite and glauberite, and the products derived from t…
Mining of other non-metallic minerals
Economic units mainly engaged in the exploitation of celestite, perlite, mineral gems, asbestos, optical and non-optical calcite, chalcedony, pyrite, pyrrhotite, peat, diatomite, white talc, vermiculite, and other non-me…
Natural gas supply via pipelines to the end consumer
Economic units primarily engaged in supplying natural gas via pipelines to the end consumer.…
Construction of industrial buildings and plants, except for supervision
Economic units primarily engaged in the construction of industrial buildings and plants, such as chemical, food, automotive, pharmaceutical, fertilizer, assembly, paper, and aerospace plants. This may include new constru…
Construction of commercial and service buildings, and other non-residential buildings, except supervision
Economic units primarily engaged in the construction of buildings for commercial and service purposes, and other non-residential buildings, such as shops, warehouses, shopping centers, restaurants, offices, hospitals, li…
Construction of oil and gas distribution systems
Economic units primarily engaged in the construction of works related to oil and gas distribution systems, such as oil pipelines, gas pipelines, pumping stations, and gas storage facilities. This may include new construc…
Construction of refinery and petrochemical plants
Economic units primarily engaged in the construction of oil refining, natural gas processing, and petrochemical plants. This may include new construction, expansions, renovations, maintenance, or repairs of refinery and …
Construction of electrical power generation and transmission works
Economic units primarily engaged in the construction of electrical power generation and transmission infrastructure, such as thermoelectric, nuclear, and wind power plants, towers, overhead or underground power transmiss…
Other civil engineering constructions
Economic units primarily engaged in the construction of civil works not classified elsewhere, such as hydroelectric plants or outdoor sports facilities. This may include new construction, expansions, renovations, mainten…
Plumbing and gas installations
Businesses primarily engaged in plumbing and gas installations in buildings. This may include new construction, expansions, renovations, maintenance, or repairs of plumbing and gas systems.…
Installation of false walls and insulation
Businesses primarily engaged in the installation of false walls and ceilings made of plaster or other materials, as well as the installation of panels and materials for thermal or acoustic insulation. This may include ne…
Flour production from other agricultural products
Economic units mainly dedicated to the production of flours from cereals, legumes and other agricultural products, such as rice flour, oats, barley, beans, soy, potatoes and marigold flowers, and the grinding of chilies.…
Production of sweets, chewing gum and confectionery products other than chocolate
Economic units mainly engaged in the production of chewing gum, chocolates, chewy candies, hard candies, regional sweets, jellies, crystallized, candied and glazed fruit.…
Freezing stews and other prepared foods
Economic units primarily engaged in the freezing of stews and other prepared foods, such as tamales, pizzas, nuggets,empanadas and tacos.…
Preservation of fruits and vegetables by processes other than freezing and dehydration
Economic units mainly engaged in the preservation of fruits and vegetables by processes other than freezing and dehydration, such as canning, pickling and preservation in brine.…
Preservation of stews and other prepared foods by processes other than freezing
Economic units mainly engaged in the preservation of stews and other prepared foods, such as soups, tomato sauces and hot sauces, moles, strained and chopped baby food, by processes other than freezing, such as dehydrati…
Production of dairy derivatives and fermented products
Economic units mainly engaged in the production of cheese, cream, butter, yogurt and other dairy products and ferments.…
Making corn tortillas and grinding nixtamal
Economic units primarily engaged in the production of corn tortillas and the grinding of nixtamal.…