The Gem of Life (2008)

Crazy rich families? CHECK!
Family businesses, and fights for the inheritance? CHECK!
A large cast of incredible actors? CHECK!
DRAMA DRAMA DRAMA!

Both take a bit of patience to really get into the juicy parts, but this makes sense since there are so many family members, and people involved. Like Game of Thrones, it all comes together with the different parties, schemes, manipulation etc. Super addictive, and entertaining. It's worth the time and patience!