海关与边境保护局开通多晶硅关税测试通道：最低进口价每公斤21美元，12月4日生效
美国海关与边境保护局（CBP）11月12日通过货物系统信息服务（CSMS）发布公报说，已在自动化商业环境（ACE）的认证测试环境中开通多晶硅及多晶硅衍生产品关税的测试通道，供贸易商在12月4日正式生效前提交测试申报、确保系统就绪。
总统于2026年8月6日签署第11052号公告，对部分多晶硅及多晶硅衍生产品进口加征关税并设定最低进口价，2026年12月4日生效。
本次开通四个模拟用的第99章税号：按最低进口价计税的两种情形中，多晶硅（税号2804.61.00）的最低进口价为每公斤21美元，另一类产品（税号8541.42.00）为每瓦0.22美元；当申报单位价值低于最低价时，关税等于最低进口总价减去申报价值，单位价值不低于最低价时关税报零。另两个税号按同额特定税率测试。
CBP 强调，上述税号只是模拟、非官方编码，不得用于实际申报；正式编码将在12月4日前于生产环境公布。CBP 同时更新了关税计算说明文件，并建议贸易界尽快提交测试条目。
（来源：美国海关与边境保护局）
CBP Opens Testing for Polysilicon Duties: Minimum Import Price of $21 per Kilogram Takes Effect December 4
U.S. Customs and Border Protection (CBP) announced on November 12, in a Cargo Systems Messaging Service (CSMS) bulletin, that it has activated testing for duties on polysilicon and its derivatives in the certification environment of the Automated Commercial Environment (ACE), so traders can submit test entries before the duties take effect on December 4.
On August 6, 2026, the President issued Proclamation 11052, imposing additional duties and minimum import prices on certain imports of polysilicon and its derivatives, effective December 4, 2026.
Four simulated Chapter 99 classifications are available for testing. Under the minimum-price calculation, the floor is $21 per kilogram for polysilicon (HTSUS 2804.61.00) and $0.22 per watt for products under HTSUS 8541.42.00; when the entered unit value is below the floor, the tariff equals the total minimum import price minus the entered value, and is reported as zero when the unit value meets or exceeds the floor. Two further classifications test the same amounts as specific tariff rates.
CBP stressed that the listed classifications are simulated and unofficial and must not be used for actual entry filing; official classifications will be announced in the production environment before December 4. CBP also updated its duty-calculation guidance and recommended that the trade community submit test entries to ensure readiness.
(Source: U.S. Customs and Border Protection)
来源：美国海关与边境保护局
发布：GSM·美国（发布链接）
图片来源：图：美国海关与边境保护局总部大楼。GSM 固定图库照片。 / Photo: U.S. Customs and Border Protection headquarters. GSM fixed image library.
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