Chart, page-10863

Actually your original post didn't tell the full story either.

The second half of the year saw overall pricing of US $12,470 per tonne (total 5000 tonne sold - carbonate).

Only the shorter term contracts were lower at US $10,800 per tonne which accounted for 2850 of the 5000 tonnes sold, which pulled the overall price down.

Seems AT was right, short term contracts are not the way to go.

Should also be noted that the China Spot Price pressure has been predicted to be near its end. Thus future short term contracts are unlikely to continue to face the same pressures.