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About TESV


TESV stands for Trainor Electrical Safety Vietnam, previously called Trainor Electrical Safety Vietnam.  Trainor is a Norwegian specialist company that has conducted Ex training since 1996.

In Oct 2016 Trainor established the first Ex training and IECEx CoPC center in Vietnam.


TESV's goals are to provide the highest quality Ex Training and other Ex services to the Vietnam Market. 

On 1st August 2020, we changed our corporate identity to TESV – ATEX & IECEx Production. This change allows us to more readily adapt to our client's needs as well as expand our product catalog to include even more Ex products and services.

  • Vision: To be recognized as the Ex specialist and expert in Vietnam

  • Mission: Safeguard life, property, and the environment

  • Core Value: Always deliver quality



Terje Gravdal - Chairman

Terje Gravdal is the former CEO of Trainor Norway.

At present, his responsibilities include Chairman of TESV - ATEX & IECEx Production and the Chairman of Trainor Manpower.

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Thaison Vu - Technical Director

Thaison Vu holds a Master degree in El Engineering. He can speak Vietnamese, English, Swedish, and Norwegian. He is involved in numerous National and International IEC committees and is the convenor of MT60079-19. His 13+year working experience includes:

  • Testing and Certification of Ex-equipment at Nemko AS and DNV Presafe.

  • Ex Certification Manager at Karsten Moholt an IECEx Repair Facility.

  • Inspection and Supervisor at different Norwegian Oil rigs. 

  • ATEX Manager at Hyundai Heavy Industries in Korea.

  • Ex specialist at ENI Norway.

In 2016 he was sent to Vietnam to establish the first Ex Training and IECEx CoPC Certification Center in Vietnam.

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Huong Mac - Managing Director

Huong Mac holds a Master degree in Banking and Finance. She graduated from Paris Dauphine University & ESCP Europe Business School. With 24+ years of working experience, she has been involved in important positions including:

  • Strategic Advisor 

  • Operations Director

  • Regional Commercial & Operations Manager

  • Head of Finance

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Ninh The Ninh

Technical Manager & Senior Instructor

Ninh is a Graduate Automation Engineer. He has been involved in various tasks related to Ex equipment in hazardous areas such as: engineering, installation, inspection and verification for either onshore or offshore projects while working at PetroVietnam Gas Services – PV Gas company and Technip Viet Nam.


Ninh has experience with ATEX and IECEx certified equipment and related Vietnamese regulations in the Oil and Gas industry.

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Meet the team


Ngan Tran

Operations Coordinator

Holds 2 degrees of University of Finance & Marketing and Saigon Tourist Hospitality College. 

With 12+ years working as Admin and Secretary to Chairman position. Specially 4 years working in Trainor Asia Vietnam Limited , Ngan Tran has experiences administration, HR Officer skills within international corporations. 


Ngan Nguyen

Marketing & Instructor Support

Holds a Bachelor degree in Marketing at Assumption University of Thailand.

With 3 year working in Marketing and Event agencies. Ngan Nguyen has experiences in campaign organization, projects and events management.


Ai Ho


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Nhan Ai has over 16 years of experience in industry, mainly in Oil & Gas and Petrochemical. He has an experience working in one project from design stage to construction & asbuilt stage (Camau Gas Pipeline Project). He experiences in both onshore & offshore project.

He is familiar with international standard such as API, ISA, IEC, ASME…


Song Nguyen


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With over 10 years in the education field for Electronic and Telecommunications and Oil & Gas industry.


Experience with maintenance, installation & inspection Ex instrumentation & electrical equipment protection technique.


Good project management & co-coordinator skill, interpersonal skill with the knowledge of latest Standard applied in Oil & Gas industry as API, IEC, NFPA, ISO, SOLAS, AGA, GS of Total.

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