Zayrul Kama has more than 20 years’ of working experience involving civil construction and operations works at various fields mainly on infrastructure for port development, highway (operations and maintenance) and also land reclamation projects. He holds degree in Civil Engineering and also Master of Business Administration (Construction Business) from IIUM.

He joined Worldwide Landfills Sdn Bhd (WLSB) as a Senior Operation Manager since November 2017 leading the Waste Management team under Environment Division. He is responsible on the overall operations of all landfills under Worldwide Holdings Berhad (WHB) and Worldwide Landfills Sdn Bhd (WLSB) care and its subsidiaries.  

His current responsibilities include finance, treasury, tax and budget. He previously led Corporate Planning where he was responsible for group strategic planning and was involved in the business development team.

Mohd Rosli began his career with audit firm before joining Worldwide Holdings Berhad in October 2005 as a Senior in the Internal Audit department. He holds a Bachelor of Accounting from Universiti Teknologi MARA. He is a member of the Malaysian Institute of Accountants. Mohd Rosli attended the General Manager Program at the Malaysian Institute of Management.

Dianna graduated Bachelor of Science in Human Development (Management) from University Putra Malaysia in 2004. With over 14 years of working experience in Human Resources & Administration, she first started her career in 2004 with Parkson Corporation Sdn Bhd.

She has since advanced into a Senior Executive, Human Resources & Administration in 2010 with JRI Resources Sdn Bhd, a company specializes in marine resources providing services to major oil & Gas companies. In April 2015, she joined Worldwide Environment as a Senior Executive, Human Resource & Administration and is responsible on the overall HR & Admin matters of the company.