and alleviate energy shortages and environmental pollution, my country canceled the 8% export tax rebate rate for ferrosilicon in early 2005, and on June 1, 2005, November 1, 2006, and June 2007 On the 1st, the tentative ferrosilicon export tariff rate was adjusted three times, from 5% to 15%. Effective from January 1, 2008, the ferrosilicon export tariff was raised again to 25%.