Mclean Technologies Bhd is an investment holding company. The company, through its subsidiaries, is engaged in the provision of surface finishing of metal parts for electrical and electronic industries, and provision of precision cleaning and cleanroom assembly services, clean bulk packaging services and other related services. It operates in the segment of Surface treatment and precision cleaning; and Other. The surface treatment and precision cleaning segment that drives majority revenue offers surface treatment, precision cleaning, clean bulk pack and related services in the hard disk drive and consumer electronics industries. Geographically, the group operates in Malaysia, Singapore, China and other international countries.