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| 542 | Rank Books 08773000J | 启用 |
| 543 | Redina Trading Pte Ltd 198500662C | 启用 |
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| 545 | Readyspace (sg) Pte. Ltd. 200813524R | 启用 |
| 546 | Red Army Watches Pte. Ltd. 200411739E | 启用 |
| 547 | Ready Cars Asia Pacific (Pte) Ltd
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| 548 | Realcool Air Conditioning Services & Trading Pte. Ltd. 200205674G | 启用 |
| 549 | Ready Software Pte Ltd 199306556N | 启用 |
| 550 | Reed Hycalog S'pore
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| 551 | Raffles Healthscreeners
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| 552 | Rapiscan Systems Pte. Ltd. 199800739K | 启用 |
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| 554 | Ras Corporate Secretarial Services Pte Ltd 198702082Z | 启用 |
| 555 | Rast Holding Pte. Ltd. 200611471M | 启用 |
| 556 | Rf360 Singapore Pte. Ltd. 199700383G | 启用 |
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| 559 | Ricoh (S'pore) Pte Ltd
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| 560 | Roof & Facade Pte. Ltd. 199004219H | 启用 |
| 561 | Ruising Chemicals Pte Ltd 199508445R | 启用 |
| 562 | Rohan . Mah Management Consultants Pte Ltd 199306446G | 启用 |
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| 564 | Rockette Communications Pte Ltd 199304535E | 启用 |
| 565 | Rang Mahal Pte Ltd 199906955D | 启用 |
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