4月11日，中国半导体行业协会发布《关于半导体产品"原产地"认定规则的紧急通知》（下称"通 知"）。根据海关总署的相关规定，集成电路原产地按照四位税则号改变原则认定，即流片地认定为原 产地。中国半导体行业协会建议"集成电路"无论已封装或未封装，进口报关时的原产地以"晶圆流片工 厂"所在地为准进行申报。 值得注意的是，《通知》中所提到的"四位税则号改变原则"，即"税则改变（CTC）方法"，是指当货物 与生产该货物的原材料被归入《商品名称与编码协调制度的国际公约》中的不同税号时，即可视为该货 物经过生产制造已经发生了实质性改变，并获得原厂资格，比如在芯片在流片阶段从裸硅片变成未封装 芯片便适用于该原则。 事实上，我国海关对芯片原产地的这一认定规则并没有发生变更。 此前，市场普遍认为集成电路的原产地以封装地为准，而通常在美国本土生产晶圆、在国内或东南亚封 装的部分美国半导体IDM厂商不会受到关税反制政策的冲击。而此次对芯片原产地认定规则的再明确， 使市场逻辑更加清晰，A股市场也快速做出反应。4月11日，半导体板块大涨，唯捷创芯、晶华微（维 权）、纳芯微等多只股票涨停。 责任编辑：AI观察员 根据中国海关数据，202 ...

Core Viewpoint - The new rules regarding the "country of origin" for semiconductor products in China are expected to negatively impact chip companies that manufacture wafers in the U.S., leading to a decline in their stock prices [3][4]. Group 1: New Regulations - The China Semiconductor Industry Association announced urgent rules stating that the "country of origin" for integrated circuits will be determined by the location of the wafer fabrication plant, not the packaging location [1][6]. - Companies must prepare proof of origin documentation for customs verification when declaring imports [1]. Group 2: Market Reactions - Following the announcement, stocks of U.S.-based semiconductor manufacturers such as Texas Instruments (TI) and Intel fell significantly, with TI down 6.8% and Intel down 3.7% [5]. - Other companies like Micron Technology and GlobalFoundries also experienced stock declines, while companies that design chips but do not manufacture in the U.S., such as Nvidia and TSMC, saw stock increases of 2.2% and 3.3% respectively [5]. Group 3: Analyst Insights - Analysts suggest that the new tariffs could create uncertainty for chip manufacturers, potentially leading to higher prices for general-purpose analog chips from TI in the short term [6][7]. - The regulations may complicate the ability of U.S. companies like Intel and TI to avoid Chinese tariffs, necessitating adjustments in manufacturing locations and logistics [6][7]. - The perception of the "country of origin" being based on the wafer fabrication site rather than the packaging site is seen as a significant surprise to the market, as it complicates the manufacturing process for U.S. companies [6][7].