Chinese smartphone makers are set to show off handsets for the next generation of mobile internet, 5G, at the Mobile World Congress 2019—the most important mobile technologies trade fair in the world.

Manufacturers including Huawei, OPPO, Xiaomi, ZTE and OnePlus have confirmed that they will present 5G phones or design ideas at the fair, which kicks off in Barcelona, Spain on Feb 25 and runs through to Feb 28.

Huawei is expected to display its first-ever foldable phone, which uses the new Balong 5000 5G chip. ZTE will also bring a new 5G phone to the event.

China Unicom said it will launch innovative products—including 5G mobile phones—and announce cooperation arrangements with global partners such as Spanish multinational telecommunications company Telefonica.