Corporate Profile

Mun Siong Group of Companies provides integrated Turnkey Mechanical services, Plant Maintenance and highly efficient specialised in-house services, experienced in combining multi-layer technical competencies with an unyielding dedication to safety, efficiency, quality, and environment responsibility. We are one of the leading construction and integrated maintenance solutions provider in Asia and USA, first established in Singapore in 1969. Our company offers an extensive range of mechanical and electrical & instrumentation services for oil & gas, petrochemical, energy, chemicals, and power generation industries. We provide a one-stop solution for all our clients with regards to engineering, procurement, fabrication, construction and maintenance services for process plants, as well as niche specialised products and solutions.

Our Philosophy

Our belief remains the same since our founding time – deliver the best timely and safe competitive solutions.  We believe that credibility is the essence of every business. Thus, we strive to fulfill our clients’ requirements, while adapting ourselves in different circumstances to deliver the best at all times.

Our Vision

We will become the preferred and most trusted turnkey solution provider to customers, colleagues, investors, business partners, and the communities where we work and live.

Our Mission

We dedicate ourselves to be the preferred service provider that thrives on cutting edge Technology, Safety, Quality and Competitive Solutions to achieve customer satisfaction.


In recognition of our unyielding dedication to safety, quality, environmental responsibility and business continuity, we are proud to be certified with the following: 

  • ISO 9001:2015 

  • ISO 14001:2015 

  • ISO 45001: 2018

  • BizSAFE Star 

  • NB Stamp (NBBI) 

  • R Stamp (NBBI) 

  • U Stamp (ASME) 

  • U2 Stamp (ASME) 


At the heart of our company’s philosophy is the belief in continuous improvement. We maintain a high standard of technical competency by equipping our staff with the requisite industrial technical skills and safety knowledge. We have been a Certified On-the-Job Training Centre (COJTC) under the Institute of Technical Education (ITE) since 1995.

Core Values



Customer Focus




Mun Siong Group's commitment to Quality, Safety, Health and Environment (QSHE) practices forms an integral part of our corporate philosophy. We are committed to take due care and interest in the environment, health and safety of our employees, customers, contractors, suppliers and the public. The mission of our SHE Department is to ensure that our Group meets and maintains the safety standards applicable to the oil and gas industry and promotes awareness of work safety to our employees.

Quality Objectives

Flawless Execution 
  • Achieve total customer satisfaction

  • Achieve zero NCR

  • Compliance to statutory and regulatory requirements 

Excellent Quality 
  • Achieve zero rework cases

On Schedule Delivery 
  • Achieve zero backlog cases

SHE Objectives


  • Achieve zero incidents 

  • Identify risks that threatens the health of our employees and ensure that it is kept within acceptable level

  • Monitor the usage of our resources and keep wastage to a minimum 

Board Of Directors

Mah Kai Leong

Non-Executive Independent Director

David Tan Chao Hsiung

Non Executive Non Independent Director

Seah Hai Yang

Non-Executive Lead Independent Director

Cheng Woei Fen

Executive Chairlady

Quek Kian Hui

Executive Deputy Chairman and Group Chief Executive Officer

Elaine Beh Pur-Lin

Non-Executive Independent Director