Meet Our Team

Our Team of Certified Trainers

  • nai

    Nai Puay Guan

    — Principal Trainer

    Nai Puay Guan is an Independent Consultant in the Aerospace industry, a Nadcap Auditor and a Shot and Flap Peening Trainer based in Singapore. He has training in mechanical engineering and holds a Master Degree in Engineering (University of South Australia). He has expertise and extensive experience in Aerospace Quality and Process Management, Surface Enhancement Technology, Conventional and Non-Conventional Machining.

    Nai had served as Instructor and Examiner of the Singapore Air Force School and was the General Manager of a metal finishing company for many years in Singapore. He is also currently the Technical Director of a surface finishing company. He has co-authored a book on Shot Peening (2006 & 2009) and is a member of the SAE AMECSE committee.

  • Koyama

    Ryuichi Koyama

    — Associate Trainer

    Ryuichi Koyama began his career, after graduating from the National Technical College of Nagaoka, with the renowned Japanese company – Mitsubishi Heavy Industries (MHI). He was part of the Nagoya Aerospace System Works division and stayed on for 35 years, where he rose through the ranks from manufacturing engineer to manager during his tenure.

    With his vast experience in the aerospace industry, Koyama left MHI in 2005 to join T.F. Management as its senior consultant where he has been providing consultation work to mainly aerospace manufacturing companies in Japan. He is also a qualified ISO 9001 quality system lead auditor.

  • John

    Zhang Yunxiao

    — Associate Trainer

    Zhang Yunxiao graduated from the Shandong Industrial University in engineering and has been engaging with the shot blasting and peening industry for more than 20 years. He has extensive professional experience and knowledge in blasting and peening technology including equipment, media and processes.

    In 2005, Zhang established AMF International Trade Co. Ltd., renowned for supplying high quality shot peening media, blasting abrasives, nozzles and related spare parts covering both the domestic and international market for the aerospace industry. He is also well recognized for his consultation services and technical support to many aviation companies in China. Zhang has successfully organized and conducted many shot peening workshops in various parts of China and has been co-trainer for these training programmes since 2007.

  • leow

    Dr. YongZhong Liao

    — Associate Trainer

    Dr. Liao has more than 14 years experience in Aerospace Metal Finishing, and was a PRI Consultant since 2008. He provides the training of chemical processing (which include anodizing and plating) and the Nadcap Audit Preparation.

    He has extensive knowledge of metal finishing for the aerospace industry, including Cad (bright and dull) plating, Ti-Cad plating, Anodize, En-Ni, conversion coating, passivation and painting. Combining extensive industrial and academic experience, Yong Liao was a previously a Post-Doctoral Research Fellow with Department of Materials, Loughboroung University, UK.

  • koh-pak-keng

    Dr. Koh Pak Keng

    — Associate Trainer

    Dr. Koh Pak Keng is currently the director of ECK Pte Ltd, a company which specializes in providing cold spray equipment and services. Dr. Koh also acts as a consultant for companies seeking AS9100 Quality Management System and Nadcap special process certification, specifically in the area of thermal spray, chemical processing and heat treatment. Concurrently, Dr. Koh is also an content developer and examination writer for Performance Review Institute (PRI) which administers the eQuaLified & eQuaLearn training programmes as well as the Nadcap special process certification.

    Prior to joining ECK Pte Ltd, Dr. Koh was the Head of the Aerospace Cluster in the Singapore University of Social Sciences, overseeing 3 undergraduate aerospace programmes. And prior to joining SUSS, he was the plant manager of a local small medium enterprise, ADCT Technologies Pte Ltd, which offers plasma spray, electric arc spray coatings, anodizing and chemical cleaning services to the semi-conductor and liquid crystal display manufacturing industries. Prior to that, he was a design engineer for General Electric Aviation with Federal Aviation Authority-Designated Engineering Representative (FAA-DER) authorization and hardware ownership of aircraft engine compressor cases.

  • lam-chee-soon

    Lum Chee Soon

    — Associate Trainer

    Lum Chee Soon has 29 years of experience in Quality and Special processes with a major US multi-national aerospace prime with last appointment as Manufacturing Transition Manager. Joined the Nadcap auditing program in 2004 and is currently a Lead Auditor and Trainer for Heat Treating, Chemical Processing, Non-Conventional Machining, Surface Enhancement, and Aerospace Quality Systems.

    He is a former trainer, founding member of the SQI Certified Quality Supervisor course. Lum served on the Executive and Education Sub-Committee of the S’pore Quality Institute. He is also a founding member of the Heat Treat Society- S’pore Chapter, American Society for Metals. Lum retired as a senior member of American Society for Quality and was a Certified Quality Technician, Engineer, and Auditor.

  • nai

    William Lee

    — Associate Trainer

    William has Over 40 years of progressive Leadership, Management, Engineering, Operations and Project experience in the aerospace industry. He graduated with an MSc in Strategic Quality Management from Portsmouth University. Over the last 20 years, worked as QA Manager maintaining Part145 MRO accreditation for FAA, EASA, CAAS, CAAC, UK CAA and AS9100 for a Prime in Engine overhaul business.

    Since 2012, William is a lead Nadcap auditor auditing special process on welding, Coatings and Aerostructure Assembly and delivering eQuaLearn courses for Welding and Coatings.