This call for tenders concerns UHPLC-MS/MS (triple quadrupole) system, which will be used in quantitative analysis of pesticides (multiresidue method as well as polar pesticides) in plant-based food products in Finnish Customs Laboratory. The number of different pesticides that need to be analyzed in one run is around 250-300 and the results are verified according to Sante guidance (Analytical quality control and method validation procedures for pesticide residue analysis in food and feed, SANTE/11312/2021 V2026, Implemented 01/01/2026.) The essential part of the pesticide analysis is software, which allows efficient and accurate analysis of LC-MS data. In addition to UHPLC-MS/MS system, the procurement also concerns the maintenance agreement for four (4) years. One (1) supplier will be selected for the procurement in accordance with the terms and conditions set in this call for tenders and its appendices. The supplier will be selected based on determining the most economically advantageous tender. The criteria for determining the most economically advantageous tender are price (10%) and quality-related grounds (90 %). The total score will be 100. The total price may not exceed 436 700 € (VAT 0%). If the total price is more than EUR 436 700 € (VAT 0%), the offer in question will be rejected.