Colin Cheong
Executive Director
- Founding partner and Executive Director of Wastech Group in Hong Kong.
- Experienced in business development and regional expansion across Asia.
- Led the establishment and growth of the Group’s Macau and Shanghai offices.
Mark Hii
Executive Director
- Experienced in engineering, plumbing, and project management.
- Holds a Grade I Plumber’s Licence, Registered Electrical Worker (Grade A) status, and membership with the Chartered Institute of Plumbing and Heating Engineering.
- Oversees project planning, implementation, and maintenance operations.
CH Hooi
Design Manager
- Specialises in automatic irrigation system design and build.
- Certified in statutory plumbing requirements and engineering drawings.
- Coordinates design matters and supports project execution.
CY Chew
Project Manager
- Experienced in irrigation, plumbing & drainage, and zero irrigation systems.
- Registered Electrical Worker (Grade B) with industry certifications.
- Oversees project monitoring, cost control, and quality assurance.
Vicki Lo
Accounts & Administration Manager
- Experienced in finance, procurement, payroll, and administration.
- Manages budgeting, cost tracking, and operational processes.
- Supports operational efficiency and business growth.
WJ Wong
Assistant Quantity Surveyor Manager
- Experienced in quantity surveying and contractual management.
- Oversees vendor negotiations and commercial matters.
- Works closely with project teams to ensure budget control.
Sustainability lies at the core of our engineering solutions, combining intelligent water systems with advanced technology to support efficient, high-performance urban environments.

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