45259900 - Plant upgrade work

CPV code 45259900 in the EU Common Procurement Vocabulary refers to Plant upgrade work. It sits at level 5 of the CPV hierarchy as a subcategory within the 45 division. This code is nested directly under 45259000, narrowing the broader category into the specific area of plant upgrade work. As a leaf code, 45259900 has no further subdivisions and represents the most precise classification available in this branch — buyers should reference it directly in tender notices when the procurement primarily concerns plant upgrade work. Contracting authorities across the EU use 45259900 in TED notices and national procurement portals to signal that a tender relates to plant upgrade work.