diff --git a/CHANGELOG_en.md b/CHANGELOG_en.md
index 68184a7..207d296 100644
--- a/CHANGELOG_en.md
+++ b/CHANGELOG_en.md
@@ -1,4 +1,6 @@
 # CHANGELOG
+## 2020-08-11
+- `xiaomi_en` Xiaomi Mi 10 Ultra and Redmi K30 Ultra have been added.
 ## 2020-08-06
 - `honor_global_en` Updated codename infomation.
 - `huawei_global_en` Updated codename infomation.
diff --git a/brands/xiaomi_en.md b/brands/xiaomi_en.md
index 7a2ca55..3d655f9 100644
--- a/brands/xiaomi_en.md
+++ b/brands/xiaomi_en.md
@@ -200,6 +200,10 @@ M2002J9R, XIG01: Mi 10 Lite Japan
 
 M2002J9E: Mi 10 Lite Zoom China
 
+**[`J1S`] Mi 10 Ultra (`cas`):**
+
+M2007J1SC: Mi 10 Ultra China
+
 **[`X5`] Mi Note (`virgo`):**
 
 2015011: Mi Note Global
@@ -858,6 +862,10 @@ M2001J11I: Redmi K30 Pro India
 
 M2001J11I: Redmi K30 Pro Zoom Edition India
 
+**[`J10`] Redmi K30 Ultra (`cezanne`):**
+
+M2006J10C: Redmi K30 Ultra China
+
 **[`H3C`] Redmi Pro (`omega`):**
 
 2016020: Redmi Pro 32GB