Choy Sen @ Chin Kim Sang is the founder of Minetech. He has been re-designated from Executive Chairman to Executive Director on 31 March 2020. He is also a member of the Executive Committee of Minetech.

He received his Masters in Business Administration from the Southern Pacific University, United States in 2004. He is also an Associate of the Institute of Quarrying Malaysia and a registered Shot-Firer with Jabatan Mineral dan Geosains Malaysia and Polis Diraja Malaysia. In addition, he is a Deputy President of Green Purchasing Network Malaysia.

He has over 40 years of experience in the quarrying and civil engineering industries. In 1984, he founded K.S. Chin Construction Sdn Bhd (now known as K.S. Chin Minerals Sdn Bhd) and was involved in quarrying and civil engineering works (i.e. drilling and blasting works). In 1989, he incorporated Minetech Construction Sdn Bhd to provide specialised drilling and blasting, loading and haulage services, focusing on rock excavation and infrastructure development projects. He had also established several other subsidiaries focusing on industrial machinery, sales and marketing of aggregates and asphalt premix.