Welcome to EEC
We are Engineer

EEC Engineering Network
We are EEC, We are Engineer

Since the establishment in 1976, Environmental Engineering Consultants (EEC) ambition is to be a world-known Thai engineering consulting firm. Starting from an initial group of five employees and now, over 200 employees. The founder Mr. Chaiyan Salicupt had a clear vision for EEC to become a leader in the environment field. Today, with a new name “EEC Engineering Network”, we are a leader in sustainable and green building design. “Co-operation and Networking” are the key of our business where we work with clients, architects, other engineering and local and international consulting firms to achieve this vision. As a learning organization, EEC Engineering Network is a knowedge-based group of companies with strong expertise and efficient teamwork to ensure that our commitments to our clients are successful and satisfactory.

EEC is well-known in leading energy efficient, environment, fire safety and innovation. EEC also has supported the government organization such as public work, town and country planning, Bangkok metropolitan authority, ministry of energy, ministry of science and technology, ministry of industry, ministry of environment and national safety council.

Our Vision

Though we are proud on our long >45 years of experiences, we are aware that we should foresee as multiple perspectives and always exploring advanced and practical future technologies. Building construction is no longer based on 4 basic elements but evolved with another, the 5th element.

Green & Sustainable Concepts

Today, continuing that vision, the spirit within us continues on with “Green and Sustainable” design concept A lot of EEC post references well demonstrate our practice in energy efficiency, environmental and safety design.

Happiness is proven by the long term staff

EEC is a family, brothers and sisters like society. We value seniority and many staff lives in EEC for more than 20 years. We emphasize staff engagement and as well offer career development.

EEC Logo Corporate Identity

Blue : If you close your eyes and imagine the sea and sky, you will see our blue. We live in a dynamic world; however we do understand the peace of infinity. We are calm and stable. We are strong and united.


our Services

MEP Engineering Design Services

EEC renders MEP engineering design and consultancy services by taking into account the safety and quality of life of indoor users, including creating value-added to the project and the business of the project owner based on national and international standards.

Sustainable Building Design Services

EEC Provide design and consulting services for sustainable building design. From experience in building system engineering design For building certification in various criteria such as TREES, LEED, DGNB, WELL

Building Information Modelling (BIM)

EEC renders building design service using Building Information Modeling (BIM) to illustrate complete design concept both in 2-Dimension and 3-Dimension. BIM is also applied for the purpose of coordination during design stage to allow efficient control of work quality and input of information into the model to ensure correct and accurate information transfer.



Unveiling “Nova BUILD EXPO” – the Exposition of Building Innovations and Modern Solutions for the Environmental Sustainability

Bangkok, 29 March 2023 –EEC Academy has unveiled the “Nova BUILD EXPO 2023” as a technology platform for the building innovations, the design thinking, and the high-performance products related to building and real estate. This expo is strongly focusing on 3 key elements as called ESI; E-Ecosystem (Buildings with environmental protection), S-Sustainability (Buildings with responsibility to our world and communities), and I-Innovation for Well-being (Buildings for better quality of life and more effectiveness), which is ready to stage during this 13–15 September at Hall 103-104, Bangkok International Trade and Exhibition Center (BITEC), Bangna, Thailand. This exhibition also follows the Sustainability Guidelines of Thailand Convention and Exhibition Bureau (Public Organization) or TCEB.

Top Urbanists from 4 Leading Research Hubs Shed Light on Urban Resilience and Solutions for Sustainable Development

Bangkok, 25 August 2022 – MQDC (Magnolia Quality Development Corporation Limited), reinforcing its position as the “Pioneering Developer in Sustainnovation for All Well-Being,” recently held the national “MQDC Sustainnovation Forum 2022” under the topic of “Future of Urbanization” at True Digital Park Auditorium. The seminar introduced innovative approaches to elevate quality of life and cope with crises arising from future urbanization. The forum gathered leading urbanists, researchers, and innovators, as well as university students and urban development enthusiasts, who joined the inspiring discussions on urban resilience.

EEC Group Commits to 'Circular' Construction

EEC Group was among 23 firms that signed “CECI: Action for Sustainable Future”, an agreement to apply circular economy principles in the Thai construction industry.

The CECI Group expects change in the Thai construction industry to start with an understanding of circular economy principles, leading to their acceptance and application. All 23 organizations are ready to serve as models for innovation development, passing on knowledge to help move toward green construction for sustainable growth together.

All Nature Subjects are Engineering Idea

There are possibilities for engineering innovations with 'Art of Engineering' solutions.
We are working beyond conventional MEP engineering services, offering innovative creations and natural resources solutions in order to achieve sustainable goals.


Projects Reference


  • All
  • Mixed Used
  • Healthcare
  • Office

Singha Complex

Office Building

Whizdom 101

Mixed used

The Forestias

Mixed used

RSU International Hospital

Healthcare Facilities

Magnolias Waterfront ICONSIAM


One Bangkok

Mixed used

Chulabhorn Hospital

Healthcare Facilities

Siriraj Piyamaharajkarun Hospital (SiPH)

Healthcare Facilities

Chulalongkorn University Centenary Park


EEC Innovation and Patents

Over 45 years, EEC’s innovative designs have been accepted. A number of designs from us were applied for patents protection. It reflects how expert and experienced we are in the engineering consultant field.

1) DEECS Dedicated External Environmental Control System
2) DVCS Dedicated Variable Chilled Water Supply Control System
3) GIES : Green Inlet Air Cooling System Cooling System under Modular Combined Heat and Power System
4) HAU Hypergenic Airconditioning Unit
5) CWS+ : Chilled Water Storage Plus Chilled Water Storage Plus for Air-Conditioning

6) GIAC : Green Inlet Air Cooling System Green Inlet Air Cooler for Gas Turbine Power Generator
7) TIAC : Thermal Airconditioning for Inlet Air Cooling System Gas turbine power generator inlet air cooling system with thermal air-conditioner using cooling method by desiccant


Chairman of Board of Director

Today, I believe that EEC which has just completed its 44th anniversary after establishment is one of the successful Thai engineering consultancy firms with capabilities matching those of oversea branches.


Deputy Managing Director Operation

We take responsibility to model environmental outcomes and tailor the scope of modelling to suit the needs of the project at a given time, and provide quantified predictions of design options to benchmark against. This assists in the client’s decision making process.


Assistant Managing Director

We take responsibility to model environmental outcomes and tailor the scope of modelling to suit the needs of the project at a given time, and provide quantified predictions of design options to benchmark against. This assists in the client’s decision making process.



Somjin Disawas

Chief of Engineering Department

Suwichaya Methmanorom

Chief of Electrical Engineer

Witoon Matemanorom

Chief of Fire Protection Engineer

Jurairat Makboon

Chief of Environmental Engineer

Charoenchai Lertmahakit

Project Team Manager

Saranya Rattanabunditskun

Project Team Manager

Wises Angsuratkomol

Project Team Manager

Wasan Laokamon

Co-Project Team Manager