Spring Festival, also known as Chinese New Year, is primarily celebrated in China, but it is not unique to China．It is also celebrated in other East Asian countries such as Vietnam, Korea, and Singapore．However, the customs and traditions of the Spring Festival may differ slightly from country to country．For example, in Vietnam, it is called Tet and is celebrated with similar customs such as family reunions, feasting, and giving red envelopes．In Korea, it is called Seollal and is celebrated with traditional food, games, and ancestral rites．So while the Spring Festival is a significant cultural event in China, it is not exclusive to China and is celebrated in other parts of East Asia as well.