４月２日，东山海关货征科报关大厅内一片繁忙，关员们正有条不紊地为企业办理各种海关手续。这时，窗口递来一份台资企业东兴水产加工有限公司要求免税进口保温材料异氰酸盐（俗称“黑料”）、聚丙多元醇（俗称“白料”）的报告。经办关员认真审阅了该报告，发现这两种化... On April 2, the Customs Department of the Customs and Excise Department of Dongshan Customs had a busy schedule in the Customs Clearance Hall. The Customs officers were in an orderly manner to handle various customs procedures for enterprises. At this time, the window sent a report from Taiwan-funded company Dongxing Aquatic Products Processing Co., Ltd. requesting tax-free importation of isocyanate (commonly known as “black material”) and polypropylene polyol (commonly known as “white material”). The office officer carefully reviewed the report and found that the two...