Huawei's latest silicon, the Kirin 980, will debut this October in the Mate 20, according to a press release obtained by Android Authority. The SoC will be the world's first commercially available piece of silicon based on a 7 nm process. For reference, Samsung and Apple just release 10 nm chips last year.
https://www.notebookcheck.net/Huawei-officially-announces-7-nm-Kirin-980-will-debut-in-Mate-20-this-October.323456.0.html