diff --git a/ch/em/chemistru-elements b/ch/em/chemistru-elements
new file mode 100644
index 00000000000..a661b406b87
--- /dev/null
+++ b/ch/em/chemistru-elements
@@ -0,0 +1 @@
+{"name":"chemistru-elements","vers":"0.1.0","deps":[{"name":"serde","req":"^1.0.188","features":["derive"],"optional":false,"default_features":true,"target":null,"kind":"normal"}],"cksum":"796f5280ead770df7c018055d9cfe5c69a2696f5f70d9133448e9fa94d609b6e","features":{},"yanked":false}