diff --git a/aws/region.go b/aws/region.go
index 6cd382da..5d93dbc6 100644
--- a/aws/region.go
+++ b/aws/region.go
@@ -31,6 +31,8 @@ var OptInNotRequiredRegions = []string{
 	"us-east-2",
 	"us-west-1",
 	"us-west-2",
+    "cn-north-1",
+	"cn-northwest-1",
 }
 
 // GovCloudRegions contains all of the U.S. GovCloud regions. In accounts with GovCloud enabled, these are the