Dear Bidder, The United Nations Development Programme (UNDP) in Ukraine hereby invites you to submit a Bid to the Invitation to Bid (ITB) UNDP-UKR-01582 for Supply of Block-modular gas boiler house with integrated diesel generator (one module). Please indicate whether you intend to submit a bid by creating a draft response without submitting directly in the system. This will enable the system to send notifications in case of amendments of the tender requirements. Should you require further clarifications, kindly communicate using the messaging functionality in the system. Offers must be submitted directly in the system following this link: http://supplier.quantum.partneragencies.org  using the profile you may have in the portal. In case you have never registered before, you can register a profile using the registration link shared via the procurement notice and following the instructions in guides available in UNDP website: https://www.undp.org/procurement/business/resources-for-bidders.  Do not create a new profile if you already have one. Use the forgotten password feature in case you do not remember the password or the username from previous registration. Search for the specific tender using search filters and subscribe to the tender in order to get notifications in case of amendments of the tender document. Pre-Bidding Conference will be held on 16th of March 2026, at 03:00 pm (Kyiv time) via MS Teams.Interested bidders are required to register for Pre-Bidding Conference by submitting their company name, list of attending representatives and their contact information through Quantum messaging portal for the subject negotiation or at the following e-mail:[email protected] Subject: UNDP-UKR-01582 – Pre-Bidding Conference RegistrationThe Pre-bid conference is:☐ mandatory☒ not mandatory, but highly recommended for bidders to attend.Minutes of the Pre-bid conference will be disseminated by Posting in Quantum to respective Negotiation ID.Additional information: - If you need support with the online system, you can contact [email protected]. Please always indicate reference to the number of the tender in subject. - Bidders must send their inquiries and requests for clarifications related to Terms of Reference / Specification / Other bidding documents using the messaging functionality in the portal. - Documents should submitted in English language. ATTENTION: Bids shall be submitted only through Quantum Portal. Proposals shall not be submitted to any email addresses. Otherwise, such bids shall be disqualified. United Nations Development Programme Procurement Unit