Currently, the U.S. import Harmonized Tariff Schedule (HTS) code for optical modules is 8517.62.00.90. On the U.S. HTS website https://hts.usitc.gov/ ,searching for "8517.62.00" shows the result "General Free1/", which indicates that attention should be paid to 9903.88.04 and 9903.88.15.
Figure 1 Search Results for 8517.62.00
The file [Chapter 99] can be downloaded from the top right corner of the aforementioned website, where details of 9903.88.04, 9903.88.15, and other tariff codes can be viewed.
Figure 2 Chapter 99
1. Details of 9903.88.04:No additional tariff is imposed on products with HTS code 8517.62.0090
Searching for "9903.88.04" in the [Chapter 99] file shows that a 25% additional tariff is required for this category of goods on top of the original tariff. Among them, U.S. Note 20(g) specifies that a 25% additional tariff is imposed on products with HTS code 8517.62.00 (except for 8517.62.0090). For specific file content, refer to the corresponding image below:
Figure 3 Details of 9903.88.04
2. Details of 9903.88.15: A 7.5% additional tariff is imposed on products with HTS code 8517.62.0090
Searching for "9903.88.15" in the [Chapter 99] file mentions U.S. Note 20(r) and U.S. Note 20(s), which specify that a 7.5% additional tariff is imposed on products with HTS code 8517.62.00 (except for 8517.62.0010 and 8517.62.0020). For specific file content, refer to the corresponding image below:
Figure 4 Details of 9903.88.15
3. Details of Import Tariffs for Chinese Products
In addition, in the [Chapter 99] file, for products imported from China, attention should also be paid to 9903.01.63. Specifically, products classified under 9903.01.63 originally required a 34% additional tariff. However, on August 12, 2025, the White House official website announced that the 24% tariff would continue to be suspended for 90 days, while a 10% tariff would be retained. For products with HTS code 8517.62.00, importers can declare 9903.01.32 to be exempted from this tariff.
For reference, the content of 9903.01.63 in the [Chapter 99] file is as follows:
Figure 5 Details of 9903.01.63
Key content of the announcement on the White House official website (August 12, 2025) is as follows:
Figure 6 Content of the White House Announcement
In the [Chapter 99] file, 9903.01.32 specifies that importers of goods with HTS code 8517.62.00 can declare 9903.01.32 to be exempted from the tariff under 9903.01.63. Key content is as follows:
Figure 7 Details of 9903.01.32
4. Fentanyl-Related Tariff: 20% Additional Tariff on All Chinese Products
Figure 8 Content of the Fentanyl-Related Tariff
Summary: As of August 16, 2025, for optical modules shipped from China to the United States (using U.S. import HTS code 8517.62.00.90), if importers declare 9903.01.32, the applicable tariffs are as follows:7.5% tariff under 9903.88.15; 20% fentanyl; related tariff Total tariff rate: 27.5%.
Note:
Policies are constantly changing, and tariffs involve numerous clauses/updates. The above content is for reference only; the actual tariff rate shall be subject to confirmation by the local customs.
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