2023??1??20???????????ó??????ITC????????????й???????泥?Ammonium Sulfate??????????η???????????????臨??????????????????????????з?????????????????????????????????永?????????????????????????????????????????????????????y???????????з?????????????????????Ч??????????У?5??????????ó?????????????????

2016??6??15????PCI Nitrogen, LLC??????????????????????????й???????立?????????????????顣2017??1??10???????????????????????й????永????????????????????á?2017??1??18???????????????????й????永????????????????????á?2022??2??1???????????????????й???????立??????η???????????????臨????顣2022??6??8???????????????????й???????????????????????????臨????á?

?????????????????ó???????????

????????????

??????У???

????https://www.usitc.gov/press_room/news_release/2023/er0120_63428.htm