Yes, Kim Jong Un met President Trump. But China is still North Korea's most important ally.

[yule]

North Korea needs China's help. And China needs a stable North Korea.
ref:https://www.washingtonpost.com/news/worldviews/wp/2018/06/21/yes-kim-jong-un-met-president-trump-but-china-is-still-north-koreas-most-important-ally/