In the first half of the last fortnight, ACN prices plunged due to weak market demand. ACN prices declined due to declining upstream energy values. ACN sellers lowered the prices to keep the buying interest alive in the consumers. In the second half of last fortnight ACN prices further declined on account of weak buying sentiments and sluggish downstream demand in the region. In U.S.A market, ACN prices were flat despite high upstream energy values and limited product availability in the region.