and QIN. They had a forward sale contract with Young Living at...

and QIN. They had a forward sale contract with Young Living at $4500/kg. They brought this forward at $3000/kg.

Now if you have two potential customers - one with a guaranteed $4500/kg sale price, and another one with no forward sale agreement, if you sold to the 2nd customer at $2000/kg, you'd make more money overall. Why didn't QIN sell to this hypothetical 2nd customer? Because they didn't exist!

Therefore there is no customer willing to buy at $2000/kg in size. Quod Erat Demonstrandum.