Question: What HTML tag represents the symbol for Chinese currency?

Or is there such a tag?

Answer: 
I'm guessing you mean HTML entity for ¥:

```
&yen;

```

[Handy reference](http://www.w3schools.com/tags/ref_entities.asp)
The Chinese use the [Renminbi](http://en.wikipedia.org/wiki/Renminbi), sometimes denoted as RMB. It's also called the Yuan.