Vietnam is a major exporter of bird's nests, with high-quality nests being one of the 10 most expensive dishes in the world. The number of bird's nest farms in Vietnam has significantly increased in recent years, with 42 out of 63 provinces and cities raising bird's nests, and the number of bird's nest houses is expected to triple by 2022. China is the largest consumer of bird's nests and highly values Vietnamese bird's nests, with the price of 1 kg of bird's nest reaching up to 1,500 USD.