For the full year of 2022, net revenue was RMB20.0 billion (US$2.9 billion), which remained flat comparing to that for 2021.
Accommodation reservation revenue for the fourth quarter of 2022 was RMB1.7 billion (US$245 million), representing a 12% decrease from the same period in 2021 and a 42% decrease from the previous quarter, primarily due to the surges of COVID-19 infections in certain regions of China.
For the full year of 2022, accommodation reservation revenue was RMB7.4 billion (US$1.1 billion), representing a 9% decrease from 2021. The accommodation reservation revenue accounted for 37% of the total revenue in 2022 and 41% of the total revenue in 2021.
Transportation ticketing revenue for the fourth quarter of 2022 was RMB2.2 billion (US$320 million), representing a 45% increase from the same period in 2021 primarily due to the strong recovery of overseas market. Transportation ticketing revenue for the fourth quarter decreased by 16% from the previous quarter primarily due to the surges of COVID-19 infections in certain regions of China and the seasonality in winter.
For the full year of 2022, transportation ticketing revenue was RMB8.3 billion (US$1.2 billion), representing a 20% increase from 2021. The transportation ticketing revenue accounted for 41% of the total revenue in 2022 and 34% of the total revenue in 2021.
Packaged-tour revenue for the fourth quarter of 2022 was RMB164 million (US$24 million), representing a 7% decrease from the same period in 2021 and a 58% decrease from the previous quarter, primarily due to the surges of COVID-19 infections in certain regions of China.
For the full year of 2022, packaged-tour revenue was RMB797 million (US$116 million), representing a 28% decrease from 2021. The packaged-tour revenue accounted for 4% of the total revenue in 2022 and 6% of the total revenue in 2021.
Corporate travel revenue for the fourth quarter of 2022 was RMB277 million (US$40 million), representing a 25% decrease from the same period in 2021 and a 25% decrease from the previous quarter, primarily due to the surges of COVID-19 infections in certain regions of China.
For the full year of 2022, corporate travel revenue was RMB1.1 billion (US$157 million), representing a 20% decrease from 2021. The corporate travel revenue accounted for 5% of the total revenue in 2022 and 7% of the total revenue in 2021.
Cost of revenue for the fourth quarter of 2022 increased by 7% to RMB1.2 billion (US$174 million) from the same period in 2021 and decreased by 6% from the previous quarter. Cost of revenue as a percentage of net revenue was 24% for the fourth quarter of 2022.
For the full year of 2022, cost of revenue was relatively stable at RMB4.5 billion (US$654 million) comparing to that for 2021, which accounted for 23% of net revenue.