Our People
Our Leadership team comprises of individuals with diverse professional backgrounds and expertise. They are responsible
and accountable for the overall operations, governance and performance of Wastech Group.
Simon Hii
Managing Director
Simon Hii
Managing Director
Hii Kong Yii (Simon), is a founding partner of the specialty fertilisers (Wastech Multigreen) and irrigation engineering (Wastech Engineering) divisions within the Wastech Group and acts as our Group Managing Director.
Simon graduated with a Bachelor of Science (Agriculture Engineering) from McGill University Montreal, Canada in 1980. He began his career in the Waste Management industry as a Project Engineer, where he was heavily involved in the construction, installation, testing and commissioning of waste treatment plants for palm oil, livestock and food industries.
Over the last 38 years, Simon has been at the helm of our Group, spearheading our overall business and strategic direction of both the Specialty Fertiliser and Irrigation Engineering divisions.
Wong Toon Ngee
Executive Director
Wong Toon Ngee
Executive Director
Wong Toon Ngee (Toon), is one of Wastech Group’s founding directors. In 1981, Toon graduated with a Bachelor of Science majoring in Agriculture from McGill University in Montreal, Canada, and in 1982, he obtained a Bachelor of Science majoring in Agriculture Engineering from the same university.
Toon has over 35 years of experience in managing projects relating to design, supply, installation and commissioning of irrigation systems. With Simon, he oversees our Irrigation Engineering Segment for both Malaysia and Hong Kong operations.
Colin Cheong
Executive Director
Colin Cheong
Executive Director
Cheong Kwok Luen (Colin) is a founding partner of Wastech Engineering International Ltd. and the Executive Director of Business Development for the Wastech Group in Hong Kong.
Colin received his Bachelor of Economics degree in 1982 from York University in Toronto, Canada. He began his career in the Engineering and Construction industry as a marketing manager for engineering and construction materials, where he developed extensive Asian regional networking for the supply and distribution of engineering and construction materials, plants, and equipment to major construction and engineering companies in Malaysia, Hong Kong, Macau, and China.
Colin has been involved in the management and business development of the company for the last 20 years, including the expansion and establishment of branch offices in Macau and Shanghai, PRC.
Ken Low
Executive Director
Ken Low
Executive Director
Low Kean Hung (Ken) is our Executive Director. In 1999, Ken obtained Bachelor of Engineering (Biology and Agriculture) from Universiti Putra Malaysia (UPM).
Ken has over 23 years of experienced in managing irrigation engineering projects in Malaysia, Singapore, Hong Kong, Macau and Shanghai.
He is involved in the design and build irrigation engineering system for international theme parks, municipalities, gardens, conservatories, plantation, orchards and greenhouses.
Mark Hii
Executive Director
Mark Hii
Executive Director
Hii Wei Lip (Mark) is our Executive Director. Mark is responsible for overseeing business development and directing and controlling all business operations, as well as determining our company's strategic direction and growth.
Mark is also responsible for ensuring the company accomplishes its financial vision, mission, and long-term objectives.
Mark, a graduate of the Federal Institute of Technology (formerly renamed UCSI College), has vast experience in Project Management and ensuring that all projects are delivered on schedule and consistently exceed client expectations.
Mark's primary duty in Hong Kong is to design, coordinate, and implement strategies for expanding existing businesses and seizing new possibilities.
Nicholas Hii
Executive Director
Nicholas Hii
Executive Director
Nicholas Hii (Nick) graduated with a Bachelor of Environments from University of Melbourne, Australia and obtained his Master of Property from the same university.
Nick is currently responsible for developing new businesses together with overseeing the day-to-day operations of the Group. Additionally, in partnership with the leadership team, Nick outlines and establishes the Group’s long term strategic objectives through approaches that can value add and is aligned with our corporate vision and mission.
At Wastech Group, you will be part of a highly dedicated and motivated team driven by teamwork, mutual respect, diligence, integrity and professionalism.
Geoffrey Goh
Director of Sales and Marketing (East Malaysia) and Plant Nutritionist
Geoffrey Goh
Director of Sales and Marketing (East Malaysia) and Plant Nutritionist
Geoffrey Goh Wee Hong is our Director of Sales and Marketing (East Malaysia) and Plant Nutritionist. He is responsible for the sales and marketing of our specialty fertilisers and other related fertiliser products in East Malaysia and foreign countries, as well as the soil analysis and formulation mix prescription for the customers' plants.
In June 1983, he earned a Bachelor of Science in Agricultural Chemistry from National Taiwan University in Taipei, Taiwan.
He began his career at Harrisons and Crosfield PLC, where he was responsible for the sales and marketing of agricultural chemicals and fertilisers. He left Harrisons and Crosfield PLC and joined Behn Meyer & Co where he was in charge of all chemical and fertiliser sales and marketing activities.
With his extensive experience in managing and supervising the overall business operations of chemicals and fertilisers, Geoffrey has assisted the Group to penetrate the oil palm plantations.
Caterlin Yee
Director of Accounts and Administration
Caterlin Yee
Director of Accounts and Administration
Yee Siew Ling, Caterlin is our Director of Accounts and Administration, joined our Board in May 2016. She is currently in charge of managing and supervising all administrative functions at Wastech Engineering, a subsidiary of Wastech Group.
In June 1988, Locke Academy awarded her the London Chamber of Commerce and Industry (LCCI) International Qualifications. Her early responsibilities at Wastech included account preparation and computerisation of accounts.
Her extensive background includes managing the company's administrative functions as well as human resources issues. She assists in the establishment of the accounting system for the Hong Kong. Yee's exceptional ability to lead and develop an internal team aided the company's expansion to Hong Kong, where she assisted in the establishment of the Hong Kong Operation's account system.
She was later named Director of Wastech Engineering in May 2016, a position she still holds today.
Bobby Ong
General Manager, Head of Supply Chain & Operations
Bobby Ong
General Manager, Head of Supply Chain & Operations
Bobby Ong is a highly accomplished supply chain professional with over 25 years of experience across various industries.
Bobby’s experience spans across various leadership roles in organizations ranging from the world’s biggest container terminal to multinational professional services firms. He has a talent for strategic procurement and vendor management, honed through experience overseeing operations for companies like Westports Malaysia, China Shipping, Sea Hawk Global Lines and PricewaterhouseCoopers (PWC), where he led finance, procurement, and operations teams. In these roles, he not only controlled costs and also a data-driven leader who understands the importance of using information to optimise processes.
He holds an MBA with a major in Strategic Management from the Maastricht School of Management (MSM) in the Netherlands. He has won the Gold Medal in MACPA for Numerical Analysis and Data Processing.
Jason Tan
Senior Manager, Regional Head of Sales
Jason Tan
Senior Manager, Regional Head of Sales
Jason Tan is an accomplished sales leader with extensive experience in the agricultural, fertilizer, and chemical industries across Southeast Asia. Currently serving as Senior Manager, Regional Head of Sales at Wastech Multigreen, he oversees sales operations and drives strategic growth initiatives for the company's sustainable agriculture solutions.
Previously as Area Manager at JR Simplot, Jason led international sales operations across ASEAN markets. His role at Zagro as National Sales Manager involved developing and executing sales strategies for agrochemicals and fertilizers. At ICL Specialty Fertilizers, he managed business development and marketing for the Far East region, successfully conducting commercial trials with organizations like MARDI and Dole Philippines.
Jason holds an MBA in Marketing and a Master's in International Economics, both with First Class honors, along with a Bachelor's degree in Agriculture. His technical knowledge and commercial expertise enable him to effectively bridge product development with market needs. Fluent in English, Mandarin, and Bahasa Malaysia, Jason excels at building relationships with distributors, partners, and clients throughout the region.
With his proven track record in sales leadership, market expansion, and product commercialization, Jason continues to deliver strong results at Wastech Multigreen while advancing sustainable agricultural practices across Southeast Asia.
The talent of our people is a key factor in enabling us to rise to any challenge and thrive in our community. We embrace a culture where our people are celebrated for their talents and professionalism, energize your career by joining us and let’s grow together.
![Daniel Yap | Senior Project Manager](/wp-content/uploads/2025/06/DSC01051.jpg")
Daniel Yap
Senior Project Manager
Daniel Yap
Senior Project Manager
Daniel Yap is an accomplished engineering professional with over 25 years of experience in construction project management. Currently serving as Senior Project Manager at Wastech Engineering, he oversees the planning and execution of complex engineering projects, ensuring they meet technical specifications, timelines, and budgetary requirements. His leadership focuses on delivering high-quality results while implementing innovative engineering solutions.
With a strong foundation in civil engineering and architecture finishing, Daniel holds a Bachelor's Degree with Second Upper Class Honors from the University of Malaya. His extensive career includes notable achievements such as successfully managing a RM93 million major infrastructures works, RM41 million mild steel structures works and overseeing various high-value residential, commercial and warehouses developments during his tenure as Project Director.
Daniel's expertise encompasses all phases of project management, from initial feasibility studies to final completion. He has strengths in infrastructure development, construction methodology optimization, and cost control. His ability to coordinate between multiple stakeholders, including contractors, consultants, and clients, has been instrumental in the successful delivery of numerous projects throughout Malaysia.
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Alfred Ong
Senior Manager, Operations & Business Development
Alfred Ong
Senior Manager, Operations & Business Development
Ong Jun Yu (Alfred) graduated from the University of New South Wales (UNSW) in Sydney, Australia, with a Bachelor of Science in Mechanical and Electrical Engineering.
He is accountable for leading sales teams to achieve sales goals, as well as setting goals and developing plans for business and revenue growth. Alfred is also in charge of researching, planning, and launching new initiatives for the target market. Alfred is actively involved in recruiting and training team members, establishing quotas, evaluating and adjusting performance, and strategizing and implementing improvements to ensure that everyone completes their assigned tasks on time.
Han Nik Kang
Senior Manager, Production
Han Nik Kang
Senior Manager, Production
Han Nik Kang (Han) graduated from Institut Teknologi Pertama in Kuala Lumpur with a Higher National Diploma in Mechanical Engineering.
He is in charge of managing the production and quality control of our Group's specialty fertilisers and other fertiliser products at our existing manufacturing facility in Port Klang, Selangor. Han's primary responsibilities include overseeing the department's daily workflow and schedules, as well as conducting timely and constructive performance evaluations.
Han is also in charge of supervising the quality assurance department and it’s staff, as well as developing, implementing, and maintaining a system of quality and reliability testing for the organization's products and/or development processes.
Yvonne Yap
Senior Manager, Purchasing & Supply Chain
Yvonne Yap
Senior Manager, Purchasing & Supply Chain
Yap Lai Fong (Yvonne) is the senior purchasing and logistics manager at Wastech Multigreen. She earned a Professional Diploma in Secretarial Studies from Cyma College of Business in 1997.
Yvonne has over 19 years of experience managing purchasing, logistics, and shipping functions where she was in charge of overseeing the logistics of specialty fertilisers and other related fertiliser products, handling inbound and outbound shipping, and planning and forecasting raw material to meet the customer's monthly supply.
Lee Kok Yew
Senior Manager, Agronomy & R&D
Lee Kok Yew
Senior Manager, Agronomy & R&D
Lee Kok Yew is a distinguished agricultural expert currently leading the Agronomy and Research & Development division at Wastech Multigreen as Senior Manager. With over 15 years of specialized experience in plantation management and sustainable agricultural practices, he has established himself as a key figure in the industry. His comprehensive expertise spans agronomic strategy, product innovation, and operational optimization in the oil palm and rubber sectors.
In his current leadership role, Kok Yew spearheads the development and implementation of cutting-edge agricultural solutions while driving research initiatives that promote sustainability and efficiency. His responsibilities encompass overseeing all aspects of agronomic operations, from conceptualizing new products to ensuring their successful commercial application. He has successfully built and managed high-performing technical teams that deliver innovative solutions to complex agricultural challenges.
Prior to joining Wastech Multigreen, Kok Yew served at Advanced Agriecological Research and saw him managing large-scale plantation programs across more than 23,000 hectares, where he implemented numerous successful field trials and sustainable farming initiatives.
A graduate with honors in Plant Biology from Universiti Sains Malaysia, Kok Yew remains actively engaged with professional organizations including the Malaysian Society of Soil Science and Incorporated Society of Planters.
Wiennee Lau
Manager, Marketing & Communicatitons
Wiennee Lau
Manager, Marketing & Communicatitons
Wiennee Lau is the Marketing & Communications Manager at Wastech Group, where she leads the company’s marketing, branding, and public relations initiatives across its specialty fertilisers, irrigation solution and smart agriculture businesses. Her responsibilities include developing integrated marketing strategies, managing digital and print communications, overseeing content development, and supporting internal branding and corporate events. She collaborates closely with the leadership and sales teams to ensure all marketing efforts align with the company’s strategic goals.
Backed by over 15 years of experience in marketing and communications and a First Class Honours degree in Media Technology from Universiti Utara Malaysia, Wiennee has built a strong foundation in strategic planning, stakeholder engagement, key account management, and campaign execution. She led multi-channel marketing projects, enhanced business development initiatives and improved sales support processes across a range of industries including water & wastewater management, scheduled waste, oil & gas and exhibitions.Â
Sabrina Toon
Senior Manager, Group Accountant
Sabrina Toon
Senior Manager, Group Accountant
Sabrina Toon is a distinguished finance leader with over 15 years of comprehensive experience in financial management and accounting operations. Currently serving as Senior Manager and Group Accountant at Wastech Multigreen, she oversees all aspects of financial reporting, consolidation, and compliance for the organization. Her strategic approach to financial management combines technical accounting expertise with business acumen to drive operational excellence.
As a Fellow of the Association of Chartered Certified Accountants (FCCA) and Chartered Accountant of Malaysia (CA(M)), Sabrina brings rigorous professional standards to her role. She is currently completing her Master of Business Administration at Sunway University, further enhancing her strategic leadership capabilities.
Throughout her career, Sabrina has demonstrated exceptional competency in financial operations. Prior to joining Wastech Multigreen, she served as Group Finance Manager at Bersatu Integrated Logistics, where she standardized financial processes across group entities and implemented annual forecasting exercises that significantly improved financial planning. Her tenure at Heineken Malaysia as Fixed Overheads & Accounts Payables Manager was marked by innovative process improvements, including the implementation of Robotic Process Automation solutions for vendor invoice processing.
Sabrina's diverse experience spans multiple industries, including notable positions at NS BlueScope Asia where she optimized treasury operations and cash flow management, and leadership roles at Zuellig Pharma and JLT Asia Shared Services where she strengthened accounting functions. Her expertise encompasses financial reporting, compliance, process improvement, and cross-functional team leadership.
Fluent in English, Bahasa Malaysia, and Mandarin, Sabrina effectively bridges communication across diverse business environments. She is proficient in multiple ERP systems including SAP and M3, with particular strengths in financial analysis and system implementations.
With her strong technical foundation and ongoing leadership development through her MBA, Sabrina continues to make significant contributions to Wastech Multigreen's financial operations and strategic growth initiatives. Her combination of professional qualifications and practical experience positions her as a valuable asset in corporate financial management.
Pairus binti Samsudin
Manager, Legal & Compliance
Pairus binti Samsudin
Manager, Legal & Compliance
Pairus Samsudin is an accomplished legal professional with over 13 years of experience in corporate law and regulatory compliance. As Manager of Legal & Compliance at Wastech Multigreen, she oversees all legal matters and ensures adherence to governance standards while supporting business objectives.
A qualified Advocate & Solicitor, Pairus has developed her expertise through roles in both private practice and corporate legal departments. Her experience spans contract negotiation, intellectual property management, and corporate compliance frameworks. As former In-House Counsel at Huntsman Global Business Services, she managed international contracts across multiple jurisdictions, specializing in non-disclosure agreements and implementing efficient contract management systems.
Pairus' background includes handling complex commercial transactions during her time at Messrs. Hasbullah Mohamad & Co, where she drafted various agreements including joint ventures and franchise contracts. Her corporate experience at AmanahRaya Trustees Berhad further strengthened her expertise in corporate trust instruments and legal risk management.
Holding a Master of Laws and Bachelor of Laws from Universiti Teknologi Mara, Pairus combines academic credentials with practical legal acumen. Admitted to the Malaysian Bar in 2010, she brings strong capabilities in legal research and regulatory compliance.
At Wastech Multigreen, Pairus provides strategic legal counsel that balances risk management with business growth initiatives, making her an invaluable asset to the organization's legal and compliance functions.
Raihan Chia
Manager, Legal & Compliance
Raihan Chia
Manager, Legal & Compliance
Raihan Chia, a Legal Professional with nine years of experience as an in-house counsel, specializes in ensuring regulatory compliance and minimizing legal risk for organizations. She has a proven track record of developing and implementing effective policies and procedures that aligns with industry standards and best practices.
Her areas of expertise include contract drafting and negotiation, regulatory compliance, employment law, litigation management, data protection and corporate governance. She is also adept at negotiating with government agencies, managing regulatory audits, and conducting internal investigations.
She graduated with a Bachelor of Law (Hons) from Multimedia University, Malaysia and was called to the Bar on 20th November 2015.
Raihan Chia is currently the Head of Legal and Compliance for the Group and reporting directly to the Executive Director.
Vicki Lo
Accounts & Administration Manager
Vicki Lo
Accounts & Administration Manager
Vicki Lo, our Accounts & Administration Manager at Wastech Engineering International Ltd, brings extensive experience in financial management, procurement, and payroll. With over 15 years of administration work expertise, Vicki ensures the smooth functioning of our financial operations and supports the growth of our company. Her meticulous attention to detail and organizational skills contribute to the efficient management of our administrative processes. As the Accounts & Administration Manager, Vicki tracks costs, manages budgets, oversees procurement, and handles payroll with precision. Her expertise and dedication make her an invaluable asset to our team, driving the effective management of our financial operations and contributing to the overall success of Wastech Engineering International Ltd.
Chew Chia Yung
Project Manager
Chew Chia Yung
Project Manager
Chew Chia Yung, our esteemed Project Manager at Wastech Engineering International Ltd, is a highly experienced and skilled professional in the field of project management. With a bachelor's degree in Electrical & Electronic Engineering, Chew has not only established himself as a capable individual but has also continuously showcased his expertise in various capacities. Since joining our team in 2013, Chew has successfully undertaken diverse roles and now spearheads the management of projects from initiation to completion. His in-depth knowledge and specialization in Automatic Irrigation Systems significantly contribute to the seamless execution and success of projects. Chew's unwavering dedication, meticulous attention to detail, and profound expertise make him an invaluable asset to our team, enabling the efficient and effective management of projects at Wastech Engineering International Ltd.
Hooi Chi Hern
Design Manager
Hooi Chi Hern
Design Manager
Hooi Chi Hern, our skilled Design Manager at Wastech Engineering International Ltd, brings over 15 years of experience in designing and constructing Automatic Irrigation Systems. With a bachelor's degree in Engineering (Biology And Agricultural) from University Putra Malaysia, Hooi excels in project management, tender submissions, and design coordination. His meticulous attention to detail ensures projects adhere to schedules and client specifications. Hooi actively contributes to team growth by mentoring junior staff and collaborating closely with project teams. As the Design Manager, Hooi plays a vital role in driving the success of Wastech Engineering International Ltd in delivering exceptional Automatic Irrigation Systems.
Wastech Engineering International Ltd