LSB Industries Inc. said May 17 that its new 375,000 st/d anhydrous ammonia plant at its El Dorado, Ark., facility is operational and ammonia production is now underway. The company expects to be selling ammonia into the pipeline by the end of May. The plant will gradually ramp up production volume over the next two months and is expected to reach full capacity by the beginning of the third quarter of 2016.