Spring Airlines is a Chinese based low-cost airline and meals are not included in your ticket price. Instead, they offer a range of pre-order meals at great prices, and they also offer a buy onboard menu on most flights.
PRE ORDER MEALS
If you pre-order your meals online, the airline offers discounts of up to CNY5 on each meal. You can pre-order your meals when booking your flight ticket, or up to 36 hours before departure.
On flights where it’s not possible to pre-purchase hot meals, the airline offers a range of hot meals for sale inflight.
If you need to change your pre-order choice you can do so up to 36 hours before departure.
Further information can be viewed here.