Hasu Dayan LLC

Open Pit Mine Control Center Office, Oyu Tolgoi Mine Site
Prefabricated Modular Building — 1,566 m²

Permanent quality, Fabricated in Khanbogd, Built in Winter, Concept to Commissioning - In Just 7 Months.

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HASU DAYAN

Hasu Dayan LLC was established in 2022 with the goal of implementing strategically important projects in Umnugovi Province, supporting regional industrial development, creating jobs, and preparing highly skilled local professionals.

Our company was founded on the investment, proven expertise, and competitive technical human resources of Hasu Megawatt LLC, one of Mongolia’s leading and longest-standing private companies in the energy sector. Today, we operate with over 500 full-time employees, delivering world-class products and services in the energy, mining, and construction sectors that meet international standards.

Our team prioritizes safety above all, consistently adhering to a Zero Harm policy. We integrate quality, reliability, and innovation into our operations, providing clients and partners with comprehensive solutions that fully comply with relevant laws, regulations, and standards.

Hasu Dayan team reviewing a technical plan

Zero Harm

Our Services.
01

Construction Services

One team, full scope: from site preparation to commissioning, we execute every phase of construction in-house.

  • Prefabricated Modular Building EPC
  • Mechanical Equipment Installation: Supply, positioning, and installation of mechanical equip...
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Construction Services
02

Steel Fabrication & Manufacturing

We provide comprehensive steel fabrication and manufacturing services, from engineering design through fabrication, installation, and quality testing - delivering structurally sound, code-compliant steel solutions for industrial and mining projects

  • Engineering Design and Technical Drawings
  • Fabrication of Steel Structures: Fabrication of structural steel components in accordance wi...
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Steel Fabrication & Manufacturing
03

Engineering Services

We provide specialized engineering support across design, analysis, and technical documentation - enabling accurate, code-compliant solutions for heating plants, structural systems, modular buildings, and industrial facilities.

  • Prefabricated Modular Building Design
  • On-Call Engineering Support: Responsive engineering support including heating process engine...
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Engineering Services
04

Energy Services

We provide specialized operation, maintenance, and installation services for thermal power and heating infrastructure - supporting reliable, safe, and continuous energy system performance.

  • Operation and Maintenance of Heating Plants and Distribution Systems
  • Boiler Overhaul Services for Thermal Power Plants, Heating Plants: Comprehensive overhaul se...
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Energy Services
05

Training Services

We provide technical and safety training programs to develop skilled tradespeople and ensure safe, compliant operation of industrial equipment and systems.

  • Comprehensive Welding Training
  • Construction Electrician Training: Technical training for construction electricians, coverin...
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Training Services
06

Construction Services

We deliver comprehensive industrial and commercial construction solutions, managing projects from initial earthworks through to final commissioning.

Our multidisciplinary expertise ensures seamless execution across all phases of development.

  • Civil & Structural
  • Mechanical & Piping: Specialized heating plant construction, HVAC and fire protection system...
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Construction Services

ACTIVE PROJECTS

Our Operations.

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Partners.

ENSIO Prefab Homes Redpath Mongolia LLC ZM Engineering Partner Lynux Maltz Sales MSM Unitra Powerhouse Mongolian Material Science and Welding Society JGI Richwell Engineering LLC SKETCH LLC Khasud

NEWS

News.

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