4.4. Confidentiality of tenders................................................................................... 39$_{ }$ APPENDIX: LIST OF REFERENCES ............................................................................ 41$_{ }$ ANNEXES ........................................................................................................................ 42$_{ }$ Annex 1. List of documents to be submitted with the tender or during the  procedure ......................................................................................................... 43$_{ }$ Annex 2. Declaration on Honour on exclusion and selection criteria....................... 49$_{ }$ Annex 3. Power of attorney....................................................................................... 55$_{ }$ Annex 4. List of identified subcontractors ................................................................ 57$_{ }$ Annex 5.1. Commitment letter by an identified subcontractor ................................. 58$_{ }$ Annex 5.2. Commitment letter by an entity on whose capacities is being relied ..... 59$_{ }$ Annex 6. Financial offer form................................................................................... 60$_{ }$ 4