Research and development on natural sciences
- 72.19 — Research and experimental development in other natural sciences and engineering
- 42.99 — Other construction, n.v.d.g.
- 43.99 — Other specialized construction work
- 46.21 — Wholesale of grain, unmanufactured tobacco, seeds and animal feeds
- 46.63 — Wholesale trade of machinery and equipment for mining, quarrying and construction
- 46.73 — Wholesale timber and building materials and sanitary equipment
- 46.76 — Wholesale of other intermediate products