| 1991 |
- PRC received the Royal School Honor for the Large Secondary Academic School
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| 1996 |
- Harris building and PRC church were chosen to be “The Conservative Buildings of the Year” by the Association of Siamese Architecture
- The PRC Scout troop was chosen to be the royal scout troop of King Carl Gustaf XVI of Sweden
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| 1997 |
- PRC received the Royal School Honor for the Large Secondary Academic School
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| 2000 |
- PRC received the Royal School Honor for the Large Primary Academic School
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| 2004 |
- PRC received the Royal School Honor for the Large Secondary Academic School
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| 2005 |
- PRC received gold medal for the Advisory Health Education School
- PRC received the prize for "the Conservation Buildings of the Years" (9 Historical Buildings) from the Association of Siamese Architecture
- PRC passed all the regulations of the inspection on educational standard from the Office for National Education Standards and Quality Assessment (Public Organization)
- PRC received an excellent standard for the Green Learning Room |