1999-12-06: Snakes of Cambodia

1999-11-20: Mammals of Cambodia

1999-10-09: 125th Anniversary of Universal Postal Union (UPU)

1999-10-05: Birds of Prey

1999-09-20: Fish (1999)

1999-09-11: Independence, 46th Anniversary

1999-09-05: Birds (1999)

1999-08-12: China 1999 Stamp Exhibition

1999-08-05: Native Orchids

1999-06-30: Historic Sites

1999-06-10: International Stamp Exhibition PHILEXFRANCE '99, Paris

1999-05-31: Molluscs

1999-05-10: Dinosaurs

1999-04-25: Butterflies (1999)

1999-04-13: Khmer Culture

1999-03-30: Cats (1993)

1999-03-05: Vintage Cars

1999-02-03: Dogs (1999)

1999-01-20: Steam Railway Locomotives

1999-01-05: Chinese New Year 2000 - Year of the Rabbit