Mainly responsible for plant utility system preventive maintenance, such as : Plant water, plant air, cooling water, air cleaning system, dust collection system, air-condition system, ect Responsible for the quality of maintenance work, schedules and records inspection and prepare maintenance record/daily report, failure analysis (weekly & monthly); Ensure equipments and machines are running at top condition; Spare part, Vendor/ Supplier management; P&ID update, including Piping drawing, process modification assessment;