Sources reported that Calamco on March 1 reposted anhydrous ammonia at $572/st DEL in California, up from the last reference price of $379/st DEL. The company’s aqua ammonia posting in California firmed on March 1 to $157/st FOB, up from $109/st FOB. Industry sources had been expecting a significant price jump from Calamco ahead of the spring season, as the last postings had been in effect since June 2020.