Mrs. Surat LEEUDOMWONG, Metrologist, Senior Professional, Acoustics and Vibration Group together with metrologists. welcomed visitors from The Macau Institution of Acoustics, Supreme Acoustics Research Limited, Hong Kong, Ramboll Hong Kong Limited (RHK), Geonoise Asia Co., Ltd. and academician from universities in Thailand. The objective of this visit was to visit NIMT Acoustics and Vibration laboratory and discussion on various collaboration in the future. The function was held at Acoustics and Vibration Metrology Laboratory Building, Rama VI Road, Bangkok.