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Mission, Vision and Core Values
Phase 1 Block 11 Lot 9 San Lorenzo South Subd. Sta Rosa City.
Telefax: (049) 502-2217
The Southern Utility Management and Services, Inc. (SUMSI) was organized on March 12, 1992 by the San Lorenzo Development Corporation (SLDC), and was registered with the Securities and Exchange Commission (SEC) under SEC Registration No. 043858, to manage all or any part of the rights, assets, business, and property of any person, firm, association, partnership or corporation within or without the Republic of the Philippines.