The Trefoil is a Partnership (General Cleaning Services (including Cleaning Of Public Areas, Offices And Factories) Except Household Cleaning) business based company which is located in Amber Mansion, Orchard Road, Singapore (923). The Unique Entity Number (UEN) of Trefoil is 27732000C which was issued on 2008-09-09 00:00:00. Trefoil was incorporated on 26 Mar 1981 and the primary ssic code of Trefoil company is 81211 and primary ssic description is General Cleaning Services (including Cleaning Of Public Areas, Offices And Factories) Except Household Cleaning.