Tencent agreed in 2008 to oversee League of Legends’ launch in China.
Riot Games entered an international licensing partnership with Tencent in November 2008, when League of Legends was still under development. Tencent was set to distribute the game through its QQ Game portal and help bring Riot’s first title to the Chinese market. That arrangement made Tencent the relevant holding company in this question, rather than Chinese game companies such as Baidu, Perfect World, or NetEase.
The partnership was strategically important because Riot was building a free-to-play online game at a time when that business model was better established in Asian markets than in North America. Tencent’s enormous internet and gaming ecosystem gave League access to a large potential audience. Tencent later became a major investor in Riot Games, acquiring a significant stake in 2011 and eventually becoming Riot’s full owner. The original 2008 agreement, however, concerned distribution and the Chinese launch—not Tencent’s later complete ownership.