With China, Korea and Japan all figuring in the top 10 markets for downloads, any mobile monetization or advertising company ought to have a strategy in for those countries not long after launch.

And Chartboost, which is a marketplace for direct advertising trades between gaming studios, is doing just that. The company is launching localized versions of its platform in Mandarin, Japanese and Korean. The company already has partnerships with some of the better-known mobile developers from the region including Hong Kong’s Animoca, along with South Korea’s Com2Us, Nexon and Devsisters and recently expanded to Android.

Chartboost supports advertising trades between different developers. It argues that this strategy is cheaper because it lets individual studios bypass the revenue share they would have to otherwise give to a traditional advertising network. The ads it supports are full-screen interstitials that are used to cross promote titles from one studio in another studio’s games.

Chartboost was founded by alums of Tapulous, the early iOS gaming company and maker of Tap Tap Revenge that Disney acquired. The company raised $2 million in funding from SK Telecom Ventures, which is a venture fund from South Korea’s most prominent carrier, TransLink Capital and XG Ventures.