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Ir. Tan Khim Bok


Khim Bok joined IEN Consultants in 2011 and was appointed as director at IEN Consultants in December, 2012

Prior to joining IEN Consultants, Khim Bok was with Arup in Kuala Lumpur from 2001 to 2011. Whilst at Arup, Khim Bok had extensive experience in the design of building services for various types of buildings.His expertise include energy efficient and innovative air-conditioning and ventilation services, lighting systems, building management system / energy management system, vertical transportation, cold and hot water plumbing, waste discharge and sanitary services and fire protection services.

At IEN Consultants, Khim Bok has been focusing on optimization of MEP Systems in buildings (ACMV, Lighting, Power) to improve energy efficiency and occupant comfort. Khim Bok has also been involved in troubleshooting existing air conditioning systems and chiller plants to solve efficiency or performance issues.

Khim Bok has experience in energy simulations using the IES VE (Virtual Environment) Software, heat load analysis using the CARRIER E-20 II Heat Analysis Program as well as lighting simulation using the DIALux software. At IEN Consultants, we rely on these tools to find the best solutions for energy, comfort and financial payback.

In his free time, Khim Bok is an avid triathlete, having completed 4 full Ironman races so far.

Selected Experiences

Setia City Mall Shopping Center, Shah Alam – First retail mall in Malaysia to achieve GBI Silver and Green Mark Gold certification
Menara Kerja Raya, Kuala Lumpur – First high rise office tower in Malaysia to achieve GBI Platinum certification
Paramit Factory, Penang – Energy efficient factory with innovative hybrid cooling system involving radiant cooling slab and mixed ventilation system
IKEA Cheras Store – 2nd IKEA Store in Malaysia. 1st in Asia to achieve LEED Gold certification. 30% more energy efficient than IKEA Damansara (1st IKEA Store in Malaysia)
IKEA Penang Store – GBI Gold and LEED v4 Gold Certification
Lendlease TRX Retail Mall – The Exchange – 2mil sqft Shopping Center in Kuala Lumpur targeting GBI Gold and LEED Gold"


B. Eng (Hons) Mechanical, Universiti Malaya Kuala Lumpur


Member Institution of Engineers Malaysia (MIEM)
Professional Engineer with Practicing Certificate (PEPC)
Green Building Index (GBI) Facilitator
Green Building Index (GBI) Commissioning Specialist (CxS)


ASEAN Energy Award 2017 Runner Up – Menara Kerja Raya, Kuala Lumpur
1st IKEA Store in Asia to achieve LEED NC Gold
1st Green Certified Shopping Center in Malaysia – Setia City Mall
Malaysian Construction Industry Excellence Awards (MCIEA) 2017, Best Building Award – Menara Kerja Raya
Malaysian Construction Industry Excellence Awards (MCIEA) 2017, Sustainable Building Award – Menara Kerja Raya

Publications & Papers Presented

High Performing HVAC and Energy Efficient Building Design – Case Study on Setia City Mall: ASEAN M&E Show 2014
Water Usage of GBI vs Non-GBI Buildings – A case study on Menara Kerja Raya: ASEAN M&E Show 2016

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