About us
Sound advice on time, cost and quality.
Tres IQS Consultancy Sdn Bhd was established on 27 September 2019 under the Companies Act 2016, and registered with the Board of Quantity Surveyors Malaysia on 4 November 2019 under the Quantity Surveyors Act 1967 as a consultant quantity surveying practice.
The practice is led by Principal Sr Lim Loon Khai. Although the company is young, its strength is a management team with more than 30 years’ experience in the construction industry.

The practice’s philosophy
What clients can expect.
From inception
Close attention to economic viability and to the type, size and quality of structure, so the design fits the client’s budget and cash flow from day one.
Through design
Progressive monitoring of the cost of alternative proposals, then advice on the procurement route and contract that best meet the client’s priorities.
On site
Proper contractual procedure and a good working rapport between all parties — avoiding disputes and delivering on time, with no compromise on cost, quality or safety.
Leadership
Management team
Principal
Sr Lim Loon Khai
B. App. Sc. (Quantity Surveying) · CQS · MRISM
Registered Consultant Quantity Surveyor with the Board of Quantity Surveyors Malaysia and a member of the Royal Institution of Surveyors Malaysia. 39 years in contract and commercial management for building construction, with tendering experience in China, Thailand, Indonesia, Brunei, India, Bangladesh, Sri Lanka, Singapore and Vietnam.
Management team
Lee Chay Line
B. App. Sc. (Construction Management & Economics)
43 years in contract and commercial management for civil and building works, with tendering experience in China, Thailand, Indonesia, Brunei, Sri Lanka, Singapore and Vietnam. Has led value engineering proposals that achieved substantial cost savings on many projects.
Our people
Key personnel
| Name | Designation | Qualifications | In the industry |
|---|---|---|---|
| Sr Lim Loon Khai | Principal | B. App. Sc. (Quantity Surveying), CQS, MRISM | Since 1988 |
| Lee Chay Line | Management team | B. App. Sc. (Construction Management & Economics) | Since 1984 |
| Cheok Boon Hoe | Senior Manager | B.Sc. (Hons) Quantity Surveying | Since 1983 |
| Hon Kah Mun | Contract Manager | M.Sc. Construction Project Management | Since 2013 |
| Tee Ka Hock | Senior Contract Executive | B.Sc. Building Contract Management | Since 2003 |
| Queennie Hew Lip Tin | Contract Executive | B.Sc. (Hons) Quantity Surveying | Since 2020 |
| Loke Kong Wei | Contract Executive | B.Sc. Quantity Surveying | Since 2021 |
| Phuah Wai Kei | Contract Executive | B.Sc. Quantity Surveying | Since 2022 |
| Sho Kai Xuan | Contract Executive | B.Sc. Quantity Surveying | Since 2023 |
| Chow Jan Shen | Contract Executive | B.Sc. Quantity Surveying | Since 2023 |
| Abner Reuben Yapp | Contract Executive | B.Sc. Quantity Surveying | Since 2025 |
Company information
Registered and accountable.
- Company
- Tres IQS Consultancy Sdn Bhd
- SSM company no.
- 1344250-X
- BQSM registration no.
- 2020/FC00628
- Legal status
- Private limited
- Incorporated
- 27 September 2019
- Principal
- Sr Lim Loon Khai