1. Company background: Sichuan Airlines and Air China are both airlines in Chinese mainland, and Lufthansa Food Company is a catering service company under Lufthansa Group.

2. Service content: Sichuan Airlines and Air China provide air transport services, and Lufthansa Food Company focuses on providing catering and other related services for different airlines;

3. Cooperation: Lufthansa Food Company can provide services for many airlines, including reaching cooperation with Chinese mainland airlines such as Sichuan Airlines and China International Airlines.