Gem Bids For Manpower Outsourcing Services - Minimum Wage - Unskilled; Not Required; Others , Manpower Outsourcing Services - Minimum Wage - Semi-skilled; Secondary School; Admin , Manpower Outsourcing Services - Minimum Wage - Semi-skilled; High School; Others , Manpower Outsourcing Services - Minimum Wage - Semi-skilled; High School; Admin , Collection & Disposal Waste Management Service - Collection, Lifting, Transportation, Unloading, Segregation Of Garbage, Ways Of Disposal; Dry Waste