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Responding to Trade Friction: What to Do First When Facing Anti-Dumping or a 301 Investigation

Tariff & Trade Policy Watch About 10 min read Updated 2026-10-12
On This Page (8 sections)

When you receive an anti-dumping or Section 301 investigation notice, what you do first directly determines the outcome.

First, identify which type of investigation it is

Type Initiating Party Common Form
Anti-Dumping (AD) Importing country Initiation notice, questionnaire
Countervailing Duty (CVD) Importing country Initiation notice, questionnaire
Section 301 Investigation U.S. USTR Policy and measures investigation

Three things to do immediately

One, confirm the deadlines. The initiation notice usually states the deadline for responding to the questionnaire and for appearing in the case. Miss it, and you may be ruled against based on "facts available."

Two, confirm your status. Are you a mandatory respondent, a sampled company, or a company that only needs to file a separate rate application? The obligations differ.

Three, find professional support. Anti-dumping defense involves legal and accounting work and requires professional assistance. The earlier you engage, the better.

Why you must respond

If you do not respond, the highest rate or the country-wide rate usually applies — which means giving up the market.

If you respond and cooperate, you have a chance to secure a lower rate or a separate rate.

Whether to respond is a matter of crunching the numbers, but "just lying flat" is often the most costly choice.

How to handle a Section 301 investigation

Watch the lists and timelines announced by USTR.

For affected products, verify the HS code and assess the scope of additional tariffs.

Communicate jointly with industry associations, customers and importers to build a complete set of materials.

What to prepare on a daily basis

Keep export prices, costs, invoices, contracts and other records so they can be retrieved at any time.

Build an export data ledger, categorised by product, market and time period.

Pay attention to early-warning information from industry associations and competent authorities.

Three common misconceptions

Misconception one: not responding has little impact. Not responding means giving up the market.

Misconception two: fill in the questionnaire however you like. If the data is inaccurate, a punitive rate may be applied directly.

Misconception three: wait until the rate is set before preparing. Last-minute scrambling means you will never pull the materials together.

China's official position and channels

China's Ministry of Commerce states that the U.S. unilateral tariff hikes violate World Trade Organization rules and harm the interests of businesses and consumers in both China and the United States. China firmly opposes them and will take necessary measures to safeguard its legitimate rights and interests.

Regarding the relevant measures concerning Xinjiang, the U.S. actions have no factual basis whatsoever and are a typical act of economic coercion. China firmly opposes them.

When you encounter friction, you can obtain guidance and support through competent authorities, industry associations and professional lawyers.

Mindset and pace

Trade friction is a long-term issue, and the response must be professional and routine.

If companies keep solid ledgers on a daily basis, they will have cards to play when an investigation comes.

Do not expect one round of communication to solve everything. Proceed according to procedure and deadlines.

Policies change frequently; specifics are subject to the latest official announcement.

Huaqiutong tip: When you receive an investigation notice, first check the deadline, then determine which type of respondent status you fall under, and then immediately contact a professional institution. Do not wait until the questionnaire is due — by then your options are very limited.
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