With the launch of TFT ranked endpoints in the Riot Games API we are changing our policy on TFT in Korea. Previously we were restricting the release of any TFT products to the Korea region. We are now ready to allow TFT products to operate in Korea.
However, you must contact us prior to releasing your product to Korean players. You must register your product in the developer portal at developer.riotgames.com AND receive confirmation from Riot’s Third Party Ecosystem team that your product is clear to launch in Korea.