China said Wednesday it would temporarily shield a small number of American products from tariffs, days before officials were scheduled to meet for trade negotiations.

According to a statement from the Chinese finance ministry, 16 types of products are set to be exempted from recently imposed duties on September 17. The exemption is valid for about one year.

The move was not expected to defuse tensions in President Donald Trump's yearlong trade dispute with China, which kept in place tariffs on major agricultural imports and thousands of other products. The US has vowed to expand tariffs to all Chinese imports in December.

The exemptions announced Wednesday included animal feed ingredients, cancer medication and chemicals. The first dozen product types on the product list, translated below, are subject to a refund from the Chinese government. The last four are not.

Read more: A majority of Americans think a recession will strike in the next year and they're blaming Trump's trade war

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  1. Other shrimp and shrimp seedlings
  2. Aster meal and pellets
  3. Other purpura (except coarse powder and pellets)
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4. Fish meal for feed

5. Lubricating oil

6. Grease

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7. Cycloprom, insecticidal ring, insecticidal nail, polythiane, etc. (including methylthiophosphorus, buprofezin, trichlorfen, indoxacarb)

8. Decitabine, fluorouridine, cyclophosphamide, gefitinib, capecitabine, raltitrexed, fludarabine phosphate, Fluoride, cytarabine hydrochloride, gemcitabine hydrochloride, ectinib hydrochloride, ifosfamide

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9. Nonionic organic surfactant

10. Mineral oil <70% lubricant

11. Lubricant that does not contain petroleum or extracts oil from bituminous minerals

12. Medical linear accelerator

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13. Whey and modified whey for feed

14. Release agent (oil by weight and oil extracted from bitumen 70%)

15. Isoparaffin solvent

16. Lubricating base oil

Read more: A majority of Americans think a recession will strike in the next year and they're blaming Trump's trade war

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