N.S.L Construction co.,ltd. provides to do design-build, cost estimate, budgetary and permission for free of charge!
info@eternia.co.th
Phone Number
02-934-7215-6
- EN
- JP
- TH
N.S.L Construction co.,ltd. provides to do design-build, cost estimate, budgetary and permission for free of charge!
info@eternia.co.th
02-934-7215-6
2026
Eternia Co., Ltd. represents the pinnacle of our evolution, integrating the legacy of N.S.L. Construction and Mega Construction into a single, powerhouse entity. We are a leading provider of end-to-end construction solutions, dedicated to industrial sustainability and the global transition toward carbon neutrality.
With a foundation of expertise dating back to 1991, Eternia brings over 35 years of experience to the field. Our portfolio includes the design and construction of over 200 high-efficiency projects—ranging from factories and warehouses to specialized steel structures and showrooms. This proven track record has earned us the enduring trust of top-tier international clients, particularly from Japan and Europe.
At the core of Eternia is a multidisciplinary team of experts, including Civil, Architectural, Electrical, and Mechanical engineers, supported by highly skilled technicians. Our operational philosophy is defined by Timely Delivery through precision planning, Value Engineering that balances cost and performance, Quality Workmanship in every detail, and an unwavering commitment to Safety Excellence for every stakeholder.
Eternia Co., Ltd. is more than a contractor; we are your Strategic Partner, dedicated to building a sustainable and highly efficient future for the industrial world.
1991
Best Group Construction & Supply Co., Ltd. was established with a registered capital of 1 million THB. From its inception, the company focused on high-quality factory and office construction, rapidly earning a reputation for engineering precision and superior technical standards.
1998
N.S.L. Construction Co., Ltd. was founded to meet the growing demand for high-standard industrial facilities. The company supported the expansion of multinational corporations from Japan, the USA, and Europe, adhering strictly to international construction benchmarks.
2002
Following a period of sustained growth, Best Group Construction & Supply merged with N.S.L. Construction to optimize management efficiency and operational capacity. The registered capital was increased to 5 million THB to accommodate larger and increasingly complex industrial projects.
2003 - 2005
The company’s unwavering commitment to safety gained international acclaim. We were honored with the “One Million Man-Hours Without a Lost Time Accident” award for a major Chemical Plant project in 2003. This prestigious recognition was achieved again in 2005 for a Renewable Power Plant project, reflecting our specialized expertise in high-risk energy and industrial infrastructure.
2016
Mega Construction Co., Ltd. was established to strengthen our Mechanical & Electrical (M&E) engineering capabilities. This expansion allowed the group to better serve the rising demand for comprehensive engineering systems and enhanced our ability to deliver large-scale "Fast-track" projects.
2026
Eternia Co., Ltd. was founded through the strategic merger of N.S.L. Construction and Mega Construction. Our mission is to provide an "All-in-One Construction Solution," specializing in Total Building Modernization and energy-efficient systems. We empower businesses to achieve sustainable growth and international expansion, specifically targeting Zero Energy Building (ZEB) standards through high-performance engineering design.