Asia Pacific Laboratory Accreditation Cooperation (APLAC) arranged a workshop on “RMP and PTP Accreditation” in Hong Kong Special Administrative Region of the People's Republic of China on 7th – 10th November 2016. There were 32 representatives from 22 accreditation bodies joining the workshop. The primary aim of the workshop is to create a comprehension of an ISO 17034 revision for the accreditation bodies in the region according to the APLAC Mutual Recognition Arrangement (MRA) in order to assess the reference material producers. Moreover, the workshop also aims to support the APLAC full members for accreditations of laboratories, reference material (RM) producers, and proficiency testing (PT) providers. Bureau of Laboratory Accreditation - Department of Science Service (BLA-DSS), an APLAC full member, also participated in the workshop. The DSS representative not only presented the laboratory accreditation activities, but also shared the experience with regard to the accreditations of the RM producers and the PT providers, especially the frequently found corrective action requests.