EUOSHA/2021/OP/F/SE/0142  2.4  Place of performance  The estimated distribution of deliveries among the different locations is as follows:  Location  Lot 1: : Awareness-raising support to focal points and partners at national level 30 Member States, EEA countries and Candidate  Countries at national level/online  90 %  Contractor premises/online  10 %  Lot 2: Communication, and media and stakeholder relationships at EU level  Bilbao 10 %  Other EU country  10 %  Contractor premises/online  80 %  Lot 3: Organisation of corporate events  Bilbao/online  50 %  Brussels/online  35 %  Any other EU countries/online  10 %  Outside EU/online  5 %  Percentage of the estimated overall volume of  deliveries  The above are estimates only and entail no commitment for the  contracting authority .  The procedure will result in the conclusion of framework contracts.  A framework contract establishes a mechanism for future repetitive purchases by the  contracting  authority , to be awarded in the form of specific contracts. The signature of a framework contract does  not impose an obligation on the  contracting authority  to conclude specific contracts with a framework  contractor.  For each lot, a framework contract will be concluded with one contractor. Specific contracts shall be  awarded on the basis of the terms laid down in the framework contract and refined, or, in duly justified  circumstances, supplemented to reflect the particular circumstances of the specific contract. The details  are set out in Article I.4.3 of the Draft Contract. Tenderers need to take full account of the provisions of the Draft Contract, as this will define and govern  the contractual relationship(s) to be established between the  contracting authority  and the successful  tenderer(s). Special attention is to be paid to the provisions specifying the rights and obligations of the  contractor, in particular those on payments, performance of the contract, confidentiality, and checks  and audits.  2.5  Nature of the contract  38 