Repair or maintenance of vacuum pumps; repair or maintenance of semiconductor testing apparatus and parts therefor; repair or maintenance of ozonisers; repair or maintenance of electroplating machines; repair or maintenance of integrated circuits manufacturing machines and systems; repair or maintenance of machines for manufacturing semiconductors and parts therefor; repair or maintenance of chemical-mechanical polishing (CMP) machines for use in the manufacture of semiconductor wafers; repair or maintenance of semiconductor wafer polishing machines; repair or maintenance of semiconductor wafer plating processing machines; repair or maintenance of semiconductor wafer processing machines; repair or maintenance of exhaust gas treatment devices for machines for manufacturing semiconductors; repair or maintenance of ozone water generators; repair or maintenance of electromagnets.

Computer software design, computer programming, or maintenance of computer software; rental of computers; providing computer programs on data networks.