Madam Ng Sing Mui (“Madam Ng”), a co-founder of the Group, has been a Director since 31 May 2016. Madam Ng was re-designated as an executive Director on 21 February 2017 and is currently acting as the Chairperson. She is also the chairperson of the Nomination Committee and holds directorships in all subsidiaries of the Company. Madam Ng is primarily responsible for the strategic planning, operation planning and overall management of the Group.

Madam Ng has almost 40 years of experience in the environmental hygiene services industry in Hong Kong. Building the business from the ground up since December 1983, Madam Ng has held a leadership role in the overall management and business development of the Group.

Madam Ng has been a certified associate fellow of the Institute of Managers and Leaders Australia and New Zealand (formerly known as Australian Institute of Management) since September 1995 and has become a fellow member since June 2019.

Ms. Sze Tan Nei (“Ms. Sze”), joined the Group in February 2007 and was appointed as a Director on 20 June 2016. Ms. Sze was re-designated as an executive Director on 21 February 2017. She is also a member of the Remuneration Committee and holds directorships in several subsidiaries of the Company. She is primarily responsible for strategic planning, operation planning and compliance control of the Group’s business operation.

Ms. Sze graduated from Queensland University of Technology, Australia, with a Bachelor of Business (Management) in October 2004. Ms. Sze was certified as a Quality Management Systems Auditor by the International Register of Certificated Auditors, by completing the Lead Auditor Training Course (in accordance to international standards ISO 9001:2008 & ISO 19011:2002) co-organised by the Hong Kong Quality Assurance Agency and International Management Systems Associates Limited in October 2009. She has also completed the Environmental Management Systems Auditor/Lead Auditor Training Course for ISO 14001:2004 & ISO 19011:2002 in January 2010, and the Occupational Health & Safety Management Systems Auditor/Lead Auditor Training Course for BS OHSAS 18001:2007 & ISO 19011:2002 in April 2011. In July 2017, she has completed the Intensive ISO 9001:2015 QMS and ISO 14001:2015 EMS Internal Auditor Training organised by SGS Hong Kong Limited. Ms. Sze has awarded a Certificate of Achievement for ISO 45001:2018 Occupational Health and Safety Management Systems Auditor/Lead Auditor Training Course issued by SGS United Kingdom Ltd. in September 2019. She was also accredited as a certified ESG Planner by International Chamber of Sustainable Development in April 2023.

Prior to joining the Group, Ms. Sze has worked for well – known firms including JLL, being a company engaging in the provision of services specialising in real estates and Hongkong Land, being a company engaging in property investment, management and development.

Mr. Sze Wai Lun (“Mr. Sze”), joined the Group in September 2007 and was appointed as a Director on 20 June 2016. Mr. Sze was re-designated as an executive Director on 21 February 2017. He is primarily responsible for the overall management of IT development of the Group.

Mr. Sze graduated from Griffith University, Australia, with a Bachelor of Commerce in December 2006, and a Diploma of Commerce from Queensland Institute of Business and Technology (currently known as Griffith College), Australia, in February 2003. He has also obtained a Diploma in SME Company Operation & Management from Hong Kong Productivity Council in September 2014, a Certificate of Data Centre Operation and Maintenance Engineers Course from Hong Kong Productivity Council in February 2015 and a Certificate of CGEIT (Certified in the Governance of Enterprise IT) from Hong Kong Productivity Council in May 2015. Mr. Sze has been admitted as a member of ISACA (Information Systems Audit and Control Association) since February 2021.

Prior to joining the Group, Mr. Sze was employed by Citicorp International Limited, being a company which provides banking and financial services as a securities operations professional in the securities operations department of the operations and technology group in April 2007. He held that position until he left such company in August 2007.

Mr. Tse Ho Yue (“Mr. Tse”), joined the Group on 1 October 2024 as chief operating officer, overseeing the Group’s day-to-day operations and strategic execution. Mr. Tse has years of rich experience in corporate management, cost and risk management, financial management, real estate asset management, and facilities management. He is currently the Managing Director of Shenzhen Lask JV Property Management Ltd. Before joining the Group, he has more than 23 years of real estate experience in Hong Kong, Mainland China and overseas from well-known international companies like JLL, DBS and Mapletree Logistics Trust.

Mr. Tse graduated with a Master’s degree in Housing Management from City University of Hong Kong in 2013. He is a Chartered Surveyor with the Royal Institution of Chartered Surveyors (RICS).

Mr. Tse is currently a member of the Chinese People’s Political Consultative Conference in Luohu District, Shenzhen, a standing committee member of the Luohu Federation of Industry and Commerce, a director of the Hong Kong, Macau, and Taiwan Entrepreneurs Committee of the Luohu Federation of Industry and Commerce, an executive director of the Luohu Overseas Friendship Association, the vice president of Shenzhen Luohu District Overseas Chinese Returnees Association and Shenzhen Greater Bay Area Career Mentor.

Mr. Ang Ming Wah (“Mr. Ang”), joined the Group in March 2007 and was appointed as a Director on 20 June 2016. Mr. Ang served as an executive Director from 21 February 2017 to 21 August 2025. He is primarily responsible for the business development and planning, control and management of the Group’s business operation.

Mr. Ang graduated from the University of Waterloo, Canada, with a Bachelor of Mathematics in October 1978, and Bachelor of Arts in October 1979. He also completed an executive program organised by the Business School of the University of Michigan in 1997. Mr. Ang was admitted as an associate member of the Hong Kong Management Association in 1986 and was appointed as an “Occupational Safety and Health Ambassador” by the Occupational Safety & Health Council in 2008.

Mr. Ang has over 30 years of experience in the environmental hygiene services industry in Hong Kong. Before joining the Group, Mr. Ang was employed by Reliance Services Company Limited (currently known as ISS Facility Services Limited), being a company engaging in the provision of environmental hygiene related services, as operations manager in May 1986. He was subsequently promoted to senior operations manager in October 1988. Mr. Ang left such company in February 2000 and his last position held was director in operation department. Mr. Ang subsequently joined Best Result Cleaning Services Ltd. (currently known as Best Result Environmental Services Limited), being a company engaging in the provision of cleaning services, as general manager in July 2000 and was appointed as director and general manager in 2004. He held that position until he left such company in September 2006.

Mr. Leung Chi Kong (“Mr. Leung”), is the assistant general manager of the Group (operation). He is primarily responsible for the overall management of sites operations of the Group. Mr. Leung has over 35 years of experiences in the environmental hygiene services industry in Hong Kong. He was employed by Reliance Services Company Limited (currently known as ISS Facility Services Limited), being a company engaging in the provision of environmental hygiene related services, as an assistant foreman. He left such company in February 2001 and the last position held was site manager. Mr. Leung then joined Best Result Cleaning Services Ltd. (currently known as Best Result Environmental Services Limited), being a company engaging in the provision of cleaning services, where he worked as assistant operations manager in February 2001 and was subsequently promoted to operation manager in October 2004, where he held such position until he left the company in September 2006 and joined the Group in February 2007. Mr. Leung has obtained a Certificate Programme on Supervisory Management from The Hong Kong Management Association in March 2000 and he was awarded a Training Certificate on Safety for Cleansing Work (managers and supervisors) by the Occupational Safety & Health Council in December 2009. Mr. Leung also obtained an Aluminum Mobile Working Platform Training Certificate issued by Origin Production Limited trading as The Hong Kong Safety Training Association in July 2004 and held a Construction Industry Safety Training Certificate from June 2004 to June 2007.

Mr. Chow Kai Chi (“Mr. Chow”), is the senior finance manager of the Group. He is primarily responsible for the financial reporting, financial planning, treasury, financial control matters of the Group. Mr. Chow obtained a Bachelor of Arts in Business Accounting in September 1999 from the University of Lincolnshire & Humberside (currently known as the University of Lincoln), the United Kingdom by long distance learning. He is currently a member of the Hong Kong Institute of Certified Public Accountants and was admitted as a member of The Association of Chartered Certified Accountants in October 2001.

Mr. Chow has over 30 years of experience in accounting and finance industry in Hong Kong. He was employed as a clerk in the finance department by Nanyang Brothers Tobacco Co., Ltd, a tobacco manufacturer in June 1988. He was promoted to senior clerk in January 1991 and held that position until he left in August 1991. Mr. Chow then joined Yue Po Engineering Co., Ltd, being a company that provides kitchen design services and supplies catering equipment as senior clerk in the accounting department in March 1992 and was promoted to account officer in October 1992, in which position he remained until he left such company in March 1995. He then joined Siu Wor Trading Co. Ltd, being a company engaging in jewellery trading related business as an accountant in April 1995 and left the company in January 1998. Mr. Chow subsequently joined Trans Asia Computer Superstore Ltd., being a company engaging in sales of computer related equipment as an accountant from June 1998 to August 1999. He then worked as a senior accountant in Hung Mau Realty & Construction Ltd, being a company engaging in the provision of general construction works from November 1999 to July 2002. From July 2002 to April 2005, Mr. Chow worked as an accountant at Broadway Photo Supply Ltd, then being an exporter of camera and photographic equipment. He then worked as an accountant in Suga Electronics Limited, being a company providing advanced electronics manufacturing services, from May 2005 to August 2005 and joined the Group in November 2005.