| Value | Category |
|---|---|
| 000 | NIU (not in universe) |
| 011 | Agriculture and livestock |
| 012 | Agricultural services |
| 021 | Forestry |
| 022 | Wood extraction |
| 030 | Animal hunting |
| 041 | Sea fishing |
| 043 | Interior waterways fishing |
| 110 | Coal mine exploitation |
| 121 | Iron mine exploitation |
| 122 | Extraction of metallic minerals except for iron |
| 130 | Crude petroleum and natural gas |
| 140 | Extraction of rock, clay and sand |
| 191 | Salt mine exploitation |
| 199 | Extraction of nonmetallic minerals not classified elsewhere |
| 201 | Livestock slaughter, meat preparation and conservation |
| 202 | Manufacture of dairy products |
| 203 | Fruit and vegetable canning and conservation |
| 204 | Canning and conservation of fish and other marine products |
| 205 | Mills and threshers |
| 206 | Manufacture of bakery products |
| 207 | Sugar refineries and sugar mills |
| 208 | Chocolate factory and candy factory |
| 209 | Diverse food industries |
| 211 | Distillation, rectification and mixing of alcoholic drinks |
| 212 | Wine industries |
| 213 | Manufacture of beer and malt |
| 214 | Manufacture of nonalcoholic drinks and carbonated drinks |
| 220 | Tobacco industries |
| 231 | Bobbin winding, knit, and finished textiles |
| 232 | Manufacture of knit products |
| 233 | Manufacture of ropes and cords |
| 239 | Manufacture of textiles and cords |
| 241 | Manufacture of shoes |
| 242 | Shoe repair |
| 243 | Manufacture of clothing, except shoes |
| 251 | Wood shops, wood finishers and others |
| 252 | Wood, cane, and similar packaging |
| 259 | Manufacture of wood and cork items not classified elsewhere |
| 260 | Manufacture of furniture and accessories |
| 271 | Manufacture of paper and cardboard |
| 272 | Manufacture of paper and cardboard items |
| 280 | Printers, editorials and similar industries |
| 291 | Leather tanning and finishing |
| 292 | Manufacture of articles of skins except for clothing |
| 293 | Manufacture of articles of leather except for shoes and other clothing |
| 300 | Manufacture of rubber products |
| 301 | Manufacture of rubber products |
| 311 | Manufacture of industrial chemical products |
| 312 | Manufacture of inedible vegetable and animal oils and fats |
| 313 | Manufacture of paint, varnishes and lacquers |
| 319 | Manufacture of chemical products |
| 321 | Petroleum refineries |
| 329 | Manufacture of diverse petroleum and coal products |
| 331 | Manufacture of clay products for construction |
| 332 | Manufacture of glass and glass products |
| 333 | Manufacture of ceramics and pottery |
| 334 | Manufacture of cement |
| 339 | Manufacture of mineral products not classified elsewhere |
| 341 | Basic iron and steel industries |
| 342 | Non-iron metal industries |
| 350 | Manufacture of metallic products, except for machinery and transportation equipment |
| 360 | Construction of machinery, except for electrical machinery |
| 370 | Construction of electrical machinery, appliances and other accessories |
| 381 | Naval constructions and boat repair |
| 382 | Train equipment construction and repair |
| 383 | Automobile vehile assembly |
| 384 | Auto-motor vehicle repair |
| 385 | Bicycle construction |
| 386 | Airplane repair and maintenance shops |
| 389 | Manufacture of other transportation vehicles not classified previously |
| 394 | Manufacture of jewelery and silver items |
| 395 | Manufacture of musical instruments |
| 399 | Other manufacturing industries not classified elsewhere |
| 400 | Construction of buildings |
| 401 | Communication channel construction |
| 402 | Other construction |
| 511 | Electricity and electrical energy |
| 512 | Natural gas production and distribution |
| 521 | Water supply |
| 522 | Sanitary services |
| 611 | Wholesale commerce |
| 612 | Retail commerce of edible products |
| 613 | Retail commerce of clothing |
| 614 | Retail commerce of other products not classified elsewhere |
| 620 | Banks and other financial establishments |
| 630 | Insurance companies |
| 640 | Real estate |
| 711 | Railroad transportation |
| 712 | Urban transportation |
| 713 | Freeway passenger transportation |
| 714 | Freeway transportation not classified elsewhere |
| 715 | Sea transportation |
| 716 | Costal and fluvial transportation |
| 717 | Air transportation |
| 718 | Transportation auxiliary services |
| 719 | Transportation not classified elsewhere |
| 720 | Storage and warehouses |
| 730 | Communications |
| 810 | Governmental services |
| 811 | Legislative entities |
| 812 | Armed forces |
| 821 | Official public instruction and private instruction |
| 822 | Official and private medical and sanitary services |
| 823 | Scientific research institutes |
| 824 | Religious organizations |
| 825 | Social assistance institutes |
| 826 | Commercial and professional associations |
| 827 | Libraries, museums, botanical gardens and zoos |
| 829 | Other service institutes not classified previously |
| 831 | Law offices |
| 832 | Accounting, auditing and bookkeeping services |
| 833 | Technical services |
| 839 | Commercial services not classified elsewhere |
| 841 | Cinematographic movie production, distribution and exhibition |
| 842 | Theaters and related services |
| 843 | Recreation services, except for theaters and movie theaters |
| 851 | Domestic services |
| 852 | Restaurants, cafes, bars and similar |
| 853 | Hotels, pensions and guest homes |
| 854 | Laundromats and dry cleaning |
| 855 | Barbers and beauty salons |
| 856 | Photographic studios |
| 859 | Personal services not classified elsewhere |
| 861 | Diplomatic and consular services of foreign countries |
| 910 | Unspecified and undeclared activities |
| 999 | Undocumented |
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