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Quality, Safety and Environmental Management Systems

In our quality management system, we have a set of company policies on quality, safety and environmental pollution prevention that are available on request.

The policies have been developed in recognition of the international ISO 9001:2015 and ISO14001:2015 standards, as well as the Occupational Health and Safety Management (OHS) OHSAS 18001:2007, and Lloyd's Register Quality Assurance have certified that the standards and codes before they were included in our quality management system.

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ISO 9001:2015

ISO 9001 is the international standard defining systematic requirements for Quality Management Systems. It covers topics such as commitment to quality, customer focus, employee competence and process management.

ISO 14001:2015

ISO 14001 is the international standard for Environmental Management Systems. It addresses specific environmental aspects to find a balance between maintaining profitability and reducing environmental impact.

ISO 18001:2007

OHSAS 18001 sets out the minimum requirements for occupational health and safety management best practice. Work with us to bring work health and safety (h&s) into your business and you can achieve the maximum return for your employees, your operations and your customers.

IETL’s vision is to achieve Zero Harm through effective management of health and safety in all our operations without in any way compromising on quality or the environment.


From the first inception of our company our founder has focused on maintaining a high standard of quality of work expanding this philosophy to embrace occupational health & safety of all our staff and workers and the care and maintenance of a sound and healthy environment.


In 2008 IETL expanded its construction activities into the petrochemical industry, enlarging the scope of this activity in 2011 by moving into refinery based projects with Thai Oil, the largest refinery operator in Thailand.


All levels of IETL staff and workers, from top management down to operational staff are committed to produce and maintain a high level of quality and to ensure a high standard of occupational health & safety and care of the environment. As a consequence of this sustained effort IETL is today one of a very few Thai construction companies achieving ISO 9001:2015, ISO 14001:2015 and OHSAS 18001:2007.


We shall continue to dedicate ourselves to continually improve all of our fundamental disciplines to sustain all obtained reward and look ahead for other challenges for our future.

We, IETL Co., Ltd, are a construction company offering all kinds of construction services. We produce works with high quality by integrating innovation and advanced technologies. At the current stage, we aim to increase the business potentiality to the customers, simultaneously, we are aware of the roles of responsibility to the employees, associated parties, and environment. Therefore, we implement management strategy covering essential issues in terms of quality assurance, safety control, environment protection, occupational safety and health, and corporate social responsibility. The missions are defined as follows: 

1. Concentrate on quality management, environment, and safety by applying the effective work strategies into the organization under the agreement between company and customers. This aims to satisfy the customers and all associated parties.    

2. Follow the regulations and laws regarding the quality assurance, safety, environment protection, and corporate social responsibility strictly. 

3. Provide safe working condition so as to support sustainable collaboration among all employees. This mission includes the issues of controlling and protecting the pollution which may occur when operating.

4. Be aware of the risk of operating system regarding the quality management, environment, and safety in order to reach to the international standard control and reduce the negative impacts to the associated parties.   


5. Implement effective strategies to design and construct building works for the environmentally friendly purpose.  This mission aims to protect the negative impacts to the environment and to avoid from the situations that may cause accidents.


According to the missions above, the mangers and persons in charge in all levels are responsible for encouraging and raising awareness and understanding to entire employees and associated parties. Furthermore, to evaluate and improve work performances as well as to follow the rules and regulations are needed to be considered by all management levels.