SingHaiyi Group Ltd. announced the appointment of Catherine Chang Soy Lee as Technical Director (Project Development and Sales Administration), with effect from 1 October 2020. Ms. Catherine Chang has relinquished her position as General Manager (Project Development) on the same day. Executive. Ms. Catherine Chang provides project consultancy services and technical expertise to the Project Development team. She also guides and acts as gatekeeper to Sales Administration team on process workflow.