CPV code 45250000 designates Construction works for plants, mining and manufacturing and for buildings relating to the oil and gas industry in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
45250000 sits under 45200000 (Works for complete or part construction and civil engineering work) and groups 6 more specific sub-codes. When classifying a tender, choose the narrowest code that still covers the full subject of the contract.