diff --git a/data/mntner/YANGIU-MNT b/data/mntner/YANGIU-MNT
new file mode 100644
index 000000000..333ee160a
--- /dev/null
+++ b/data/mntner/YANGIU-MNT
@@ -0,0 +1,7 @@
+mntner:             YANGIU-MNT
+admin-c:            YANGIU-DN42
+tech-c:             YANGIU-DN42
+mnt-by:             YANGIU-MNT
+source:             DN42
+auth:               ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIK1S7SShwAu3XuOIOuKA4Bjx8BFjeeOc4rptIdXdv2x5
+remarks:            f85280e6483148fe5598d851c8348bfadcf4f8cd6b881c59f22110ad27214e8b
\ No newline at end of file