18.-IE-Membership-Certificate
17.-IETE-Member-2007
AOAC-PFAS-in-Pkg-WG-Mtg---rizwanshariff53gmail.com---Gmail
AOAC-ETO-WG-Meeting---rizwanshariff53gmail.com---Gmail
202105-Appointment-of-Examiners-COHSMS--YUEN-Tsz-Kit
202105-Appointment-of-Examiners---CSQMS---YUEN-Tsz-Kit-002
202008-HKICA-OHS-Auditor
2023-HKICA-Senior-Quality-Management-Engineer
2020-2022-Appointment-as-Governing-Council-Members---OHS
IRCA-2024-tszyuen896---Certificate