diff --git a/budget/commodities.inc b/budget/commodities.inc
index 8a644c7..675d1c1 100644
--- a/budget/commodities.inc
+++ b/budget/commodities.inc
@@ -17,2 +17,6 @@ commodity CHF
 
+commodity CNY
+   note Chinese yuan
+   format CNY 1,000.00
+
 commodity MXN
@@ -23,3 +27,3 @@ commodity TWD
    note Taiwan New Dollar
-   format TWD 1,000
+   format TWD 1,000.00
    default
diff --git a/budget/forex.db b/budget/forex.db
new file mode 100644
index 0000000..e69de29