In response to an official request from the Namibia Statistics Agency (NSA) for assistance in developing Economy-Wide Material Flow Accounts (EW-MFA), the United Nations Environment Program (UNEP) organized a five-day technical assistance mission. This mission was held from 21 October to 25 October 2024, in Windhoek, Namibia. The mission was part of the Statistics and Data project "Resilient and Agile National Statistical Systems to Meet Post-COVID-19 Data Needs to Recover Better". This project is supported by the 14th tranche of the United Nations Development Account (DA14 project) and aims to enhance the capacity of national statistical systems (NSS) in selected countries to provide high-quality, timely, and relevant data for post-COVID-19 recovery efforts. It also aims to enhance the resilience and agility of NSS in beneficiary countries to respond to emerging economic, social and environmental data needs in times of crises and disasters through the use of innovative data sources, advance data acquisition methods and modern technologies, while ensuring a path towards the achievement of the 2030 Agenda. Specifically, the DA14 project is supporting several countries to strengthen the System of Environmental-Economic Accounting (SEEA) at the national level with a focus on Economy-Wide Material Flow Accounts (EW-MFA) and the calculation of relevant indicators under the Sustainable Development Goals (SDGs) 8 and 12. These indicators are critical for assessing progress towards sustainable economic growth, resource efficiency, and sustainable consumption and production patterns.