Dear Prospective Bidder: SUBJECT: Request for Invitation to Bid # EM/ACO/PAK/P/0009033 Provision of consumables required for PEI, WHE & Measles/Rota Lab in Pakistan You are invited to submit an Invitation to Bid for the above subject ITB for the World Health Organization (WHO)- Country Office Pakistan, in accordance with the attached documents: File Name Provision of lab consumables for PEI, WHE & Measles/Rota Lab ITB Invitation to Bid Annex 1 Technical Proposal Annex 2 Commercial Proposal Annex 3 Purchase Order General Terms & Conditions Annex 4 Information about bidders Annex 5 Self Declaration Form Annex 6 Confidentiality undertaking TIMELINE 1- A prospective bidder requiring clarification on technical, contractual or commercial matters is to be submitted exclusively via UNGM (correspondence tab) no later than 19 April 2026 at 1600 Islamabad Time A consolidated document of WHO's response to all questions (including an explanation of the query but without identifying the source of enquiry) will be sent to all prospective bidders who have received the ITB. 2- The bidder shall submit proposals exclusively via UNGM (Submit Return tab), no later than 23 April 2026 at 23:00 hours (Pakistan) time. Please follow the instructions provided in the ITB document for the submission of your proposal in section 3. Best Regards Procurement Unit