Mrs. Rungsiya Sukhon, Senior Professional Metrologist, Mechanical Metrology Department of NIMT, was invited by the South African National Accreditation System (SANAS) to participate as an international technical expert for the reassessment of the National Metrology Institute of South Africa (NMISA)’s mass laboratory. This activity was part of the peer review held during 12-14 March 2024 in South Africa.