Tighter 6.5pc sulphur petroleum coke availability in the second half of November led to some rise in price, but the monthly index still slid by more than $4/t on lower mid-month deals. Fob US Gulf 6.5pc started the month slipping below the mid-$20s/t. It continued the steadily lower trend it had been on since late August for the first couple of weeks before hitting bottom with some deals done at $20-21/t.
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