摘要
Since 2008,according to the economicsituation,the Chinese government has ad-justed the yellow phosphorus export tarifffor several times.It levied a 100% additionalexport tariff on yellow phosphorus on May20th,2008 and then adjusted the additionaltariff from 100% down to 75% on December1st,2008 and later down to 50% on January1st,2009.Since July 1st,2009,China
