commodity is always king, huaan is producing coke in china, u can relate it to steel demand. Actually to thing that make Huaan profit:
1. the difference in the price of coke(the product-to-be-sold) and the coal(the material-need-to-buy) the higher the difference the higher the magin
2. the economy which affect the steel demand which affect the coke demand

Jim Roger and George Soros agree that the China is the next dragon that the world have to watch out, the economy growth of china is going to open our month soon, thus the coke demand is definitely increasing.

Actually from the profile of Huaan, it is not an ambitious company that have big big vision like Genting and KNM who always aim to be the world top player. However, as commodity is still king, the profit of investing in it is still quite attractive and promising