Shares of eBay closed on Wednesday with a gain of 9% Meta said it will allow some listings to be displayed on Facebook Marketplace, its popular platform that connects consumers for local item pickups and more.

eBay shares reached their highest level since November 2021.

The rollout will begin with a test in Germany, France and the United States, allowing buyers to view listings directly on the marketplace and complete the rest of their transactions on eBay, Meta said in a press release.

The partnership could boost eBay’s marketplace business, which has previously struggled to compete with e-commerce rivals such as eBay Amazon, WalmartTemu and even Facebook’s own marketplace platform where users can buy and sell items.

eBay has recently introduced niche categories such as collectibles and luxury goods to keep buyers and sellers returning to its site. CEO Jamie Iannone told CNBC in an interview in October that shoppers were coming to the site, known for its used and refurbished goods, looking for discounts in a difficult macroeconomic environment.

Meta’s move is an attempt to appease the European Commission, the European Union’s executive body, after the regulator fined the company 797 million euros ($821 million) in November for sharing its Marketplace product with the main Facebook app.

At the time, the commission said that Meta and Facebook’s bundling of Marketplace could result in effectively “foreclosure” of competitors, given the platform’s distribution reach. Facebook has more than 3 billion users worldwide.

The commission also said Meta imposes “unfair trading conditions” on other online classifieds providers that advertise on its platforms, particularly Facebook and Instagram. It added that these terms allow Meta to use data generated by other advertisers for the benefit of Marketplace.

Meta appealed the ruling at the time, saying it “ignored the realities of Europe’s thriving market for online classifieds services.”

“While we disagree with the European Commission’s decision on Facebook Marketplace and continue to appeal, we are working quickly and constructively to develop a solution that takes into account the issues raised,” the company said on Wednesday.

eBay touted the integration with Facebook Marketplace as a way for the e-commerce site to “increase visibility of our sellers’ listings on and off eBay as part of our strategy to engage buyers and strengthen customer loyalty.”

Facebook announced a similar partnership with in 2023 Amazon This allows users to browse and purchase products without leaving the app.

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— Additional reporting by CNBC’s Annie Palmer.