The United Nations Development Programme (UNDP) in Vietnam seeks for Firm to Survey, Design, and Preparation of Technical-Economic Report for the Nature-based Solution (NbS) for Denuded Hillside Stabilisation.  The objective of this assignment is to develop a technically sound and context-appropriate NbS for hillside stabilization at Nam Lau Kindergarten and Secondary School site. Specifically, the assignment aims to:- Conduct detailed topographic and geotechnical surveys to assess current slope stability conditions and risks of landslides and erosion;- Design a pilot NbS for hillside stabilization based on Japan’s Chisan approach, tailored to local terrain, environmental, and land use conditions;- Prepare a comprehensive technical-economic report aligned with Vietnamese laws and regulations, including relevant standards on construction, environmental protection, and disaster risk reduction; - Provide a solid technical basis for local authorities to review, approve, and implement the intervention. This specific tender is managed via the new supplier portal system of UNDP. 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. YOU ARE ADVISED TO CONTACT UNDP FOCAL POINT ([email protected]) TO CHECK IF YOU ARE HAVING A PROFILE IN THE SYSTEM. Any request for clarification of solicitation documents must be sent directly in the system through message functionality. ATTENTION: PROPOSALS (OR ANY PART OF IT) SHALL NOT BE SUBMITTED IN MESSAGING FUNCTION. Please follow this important guidance for the "Supplier name": For both company and individual, please insert exact your bank account name (name as it appears on bank account). This name should be the same as the information provided in the bank proof. 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 or contact UNDP focal point to check if you have a profile yet. Should you be interested in submitting a proposal, please log in to the online portal and search for this specific tender using search filters and subscribe to this tender following the instructions in the system user guide. Should you require further clarifications, kindly communicate through the system. Please prepare your proposal in accordance with the requirements and procedure as set out in this RFP and submit it by the deadline for submission of proposals set out in the system. Women-owned companies are encouraged to bid. Preference will be given to equally technically qualified women-owned companies. If you need support with the online system, you can contact: Procurement Unit, UNDP Vietnam. Tel: +84 24 3850 0283; Email: [email protected] This is a two stage negotiation and all responses will be evaluated in two stages. Procurement Unit UNDP Viet Nam