Trip.com Group and fellow travel giant AirAsia are forming a partnership to collaborate on product and services on their respective websites.
AirAsia has spent the last two years talking about its intention to become a wider e-commerce player in the Southeast Asian region, bringing in other travel and retail products into its site.
The new agreement will see the pair share content and cooperate in areas including transit information, membership benefits and product marketing.
Flights, hotels, airport transfers and activities are included in the sharing of inventory across both platforms, with Trip.com Group's premium members getting "upgraded privileges" when they book AirAsia tickets.
AirAsia CEO Tony Fernandes says: "With our continued focus on providing the best value and choice for our guests, AirAsia has transformed from an airline into a leading travel, lifestyle and financial technology platform.
"This partnership with Trip.com Group demonstrates our commitment and confidence in the China market, more so during this challenging COVID-19 environment, where we remain optimistic for borders to be reopened in the near future."
The agreement with Trip.com Group comes almost two years on from the end of AirAsia's joint venture with Expedia for AirAsiaGo.
An investment of $60 million by Expedia Group brought to an end a seven-year joint venture between it and AirAsia to sell the airline's tickets alongside hotels.
The deal saw Expedia Group take full ownership of the AAE Travel business, the joint venture behind the consumer-facing AirAsiaGo website that, until then, AirAsia owned a 25% stake in since 2015.
AirAsiaGo is still currently powered by Expedia Group, featuring air tickets from the carrier alongside hotels from Expedia and packages of the two bundled together.
The partnership was originally signed between Fernandes and Expedia Group chairman Barry Diller in 2011.