The Government of Angola, through the Ministry of Health (MINSA) with support from UNDP under the Global Fund COVID-19 Response Mechanism (C19RM), is implementing critical infrastructure works to strengthen hospital resilience and ensure uninterrupted provision of essential health services. These interventions include installation of Pressure Swing Adsorption (PSA) oxygen plants, medical gas distribution systems, and improved waste management facilities across priority hospitals.At Kapalanga Hospital, the expansion of services has created a need to protect sensitive installations—including the PSA generator facility and the central waste incineration unit, against soil erosion, runoff, and structural instability. To safeguard these facilities and ensure long-term operational safety, the construction of a retaining wall (muro de contenção) has been identified as a priority.The proposed retaining wall will be constructed using gabion technology combined with geotextile layers and reinforced foundation works, in line with international best practices for slope stabilization and drainage management. This intervention will ensure environmental protection, extend the lifespan of critical hospital assets, and maintain safety for staff, patients, and surrounding communities.Interested suppliers must submit their offer directly in the system as instructed in the solicitation document, following the instructions in the available user guide. 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 the 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. If you need support with the online system, you can contact the contact details of this tender as indicated in the solicitation document.[UNDP OFFICE XXXXPROCUREMENT UNIT]