Difference between Yuan and Renminbi

I've always done a crosscheck whenever this distinction comes up, doubting my knowledge. Spoiler, it's by design.

Difference between Yuan and Renminbi
Photo by Eric Prouzet / Unsplash

By that I mean, the structure of distinguishing the currency from the unit seems to be the odd one out of a basket of other currencies. See.

Country Currency (ISO Code) Basic Unit Subunit
China Renminbi (CNY) Yuan Fen (1 Yuan = 100 Fen)
United States Dollar (USD) Dollar Cent (1 Dollar = 100 Cents)
Nigeria Naira (NGN) Naira Kobo (1 Naira = 100 Kobo)
Japan Yen (JPY) Yen None (No smaller unit)
Eurozone Euro (EUR) Euro Cent (1 Euro = 100 Cents)
United Kingdom Pound Sterling (GBP) Pound Pence (1 Pound = 100 Pence)
United Arab Emirates Dirham (AED) Dirham Fils (1 Dirham = 100 Fils)
South Korea Won (KRW) Won Jeon (1 Won = 100 Jeon, but rarely used)

I can't argue with why they made the distinction. I can only hope this clarification is helpful to me again in the future.