Glencore is making megabucks from the resource boom so making a...

Glencore is making megabucks from the resource boom so making a little profit from selling its AUO shares is neither here nor there.
It wants marketing rights to AUO's coal.
The only way to get that is to block CEY's complete takeover of AUO which it has done.
Glencore is related to Xstrata, which has many synergies with CEY. XTA has already mentioned it wants to grow through aquisitions. Looks like CEY is on its shopping list.