DGTR Initiates Anti-Dumping Investigation on Per-sulphate Imports from China

The DGTR has initiated an antidumping investigation on Per sulphates originating from China. The investigation has been launched via a notice dated 30 September 2026, based on a complaint lodged by two Indian chemical manufacturing companies, namely Calibre Chemicals Private Limited and UI-VR Private Limited.

The companies have alleged that Chinese Per sulphates are entering India at dumped prices, making it difficult for domestic manufacturers to compete. They have also claimed that increasing imports and falling import prices have affected their sales, production and profitability.

The investigation covers three chemicals: Ammonium Per sulphate (APS), Potassium Per sulphate (PPS) and Sodium Per sulphate (SPS). These products are used as initiators and oxidising agents in the textile and chemical industries.

For Indian chemical importers, manufacturers and industrial users, the announcement deserves attention because it could eventually affect the cost of importing these products. However, DGTR has only initiated an investigation. The notification does not impose any new anti-dumping duty.

The Authority will now examine the available evidence, consider submissions from interested parties and determine whether the legal conditions for recommending an anti-dumping measure are satisfied.

DGTR Anti-Dumping Investigation at a Glance

The investigation has been initiated under the Customs Tariff Act, 1975 and the Anti-Dumping Rules, 1995.

The following table summarises the notification.

The notification deals with alleged dumping and injury to domestic manufacturers. It also sets out how interested parties can participate and submit their information.

Regulatory Framework Governing Anti-Dumping Investigations in India

What Is an Anti-Dumping Investigation?

An anti-dumping investigation examines whether goods exported to India are being sold at prices lower than their normal value and whether those imports are causing injury to Indian manufacturers. A product being cheaper than an Indian alternative does not automatically mean that dumping has taken place.

The investigating authority must examine the relevant prices, production costs, import data and economic condition of the domestic industry. For an anti-dumping measure to be justified, the required findings concerning dumping, injury and the relationship between them must be established.

Role of the Directorate General of Trade Remedies

DGTR is responsible for conducting anti-dumping and other trade remedy investigations in India. During an investigation, DGTR examines information submitted by domestic manufacturers, importers, exporters and other interested parties.

Its responsibilities include:

• Examining dumping allegations: Reviewing the available evidence concerning normal value and export prices.
• Assessing injury: Studying whether the domestic industry has suffered material injury.
• Reviewing import information: Considering relevant import volumes and prices.
• Hearing interested parties: Providing opportunities to participate under the prescribed procedures.
• Determining findings: Reaching conclusions based on the investigation record.
• Making recommendations: Recommending appropriate trade remedies when supported by the findings.

The Central Government is responsible for deciding whether to impose an anti-dumping duty under the applicable law.

Customs Tariff Act, 1975

Section 9A of the Customs Tariff Act, 1975 serves as the statutory authority for imposing anti-dumping duties on dumped imports. The provision is implemented in accordance with the appropriate provisions and procedures.

Anti-Dumping Rules, 1995

The investigation refers to several important provisions of the Anti-Dumping Rules, 1995.

These provisions matter because the investigation must follow a prescribed legal process before any conclusions are reached.

What Has DGTR Announced Regarding Per sulphates Imports from China?

DGTR has formally opened an investigation into imports of Per sulphates originating in or exported from China PR. The investigation follows an application filed by Calibre Chemicals Private Limited and UI-VR Private Limited. Both companies have requested anti-dumping duties on the subject goods.

The applicants believe that dumped imports are affecting domestic production and profitability. After examining the evidence submitted with the application, DGTR found sufficient preliminary grounds to begin the investigation.

Main Developments Under the Notification

1. Investigation into alleged dumping

DGTR will examine whether Per sulphates from China are entering India at dumped prices.

2. Examination of injury to domestic manufacturers

The Authority will assess the claimed damage to the domestic industry, including effects on sales, prices and financial performance.

3. Examination of three Per sulphate products

Ammonium, Potassium and Sodium Per sulphates are covered by the defined product scope.

4. Participation by interested businesses

Importers, exporters, producers and other interested parties may participate according to the notification's procedures.

5. Possible recommendation of anti-dumping duty

DGTR may recommend a duty if its investigation supports such a conclusion. The initiation notification itself does not imposes a duty.

Why Has DGTR Initiated the Anti-Dumping Investigation?

The main reason for the investigation is the domestic industry's complaint that Chinese Per sulphates are being imported at dumped prices and causing material injury. The applicants have identified several concerns involving import volumes, selling prices and business performance.

Increase in Chinese Per sulphates Imports

According to the notification, the applicants submitted evidence indicating that imports from China increased during the injury investigation period.

The reported increase was both absolute and relative. An absolute increase means that the quantity imported has increased. A relative increase examines import volume in relation to another measure, such as Indian production or consumption.

For domestic manufacturers, a continuing increase in lower-priced imports may put pressure on sales and market participation. However, the investigation must determine whether the imports were dumped and whether they caused injury.

Decline in Import Prices

The applicants also reported that Chinese import prices fell sharply during the injury period. They claimed that the imported products were being sold below comparable prices offered by Indian manufacturers. When imported products are available at lower prices, domestic manufacturers may face pressure to reduce their own prices or limit planned price increases. This is one of the matters DGTR will examine.

Impact on Domestic Production and Sales

The applicants submitted that they were unable to increase production and domestic sales in line with available demand and their expanded production capacity. They attributed this difficulty to the adverse effects of the alleged dumped imports.

Impact on Profitability

The complaint also mentions deterioration in:

• Profitability.
• Return on investment.
• Cash profits.

These economic indicators form part of the injury assessment. The notification records preliminary evidence it does not establish that every allegation has been finally proved.

Which Types of Per sulphates Are Covered Under the Investigation?

The product under consideration is Per oxo sulphates, commonly called Per sulphates. The notification identifies three types of Per sulphates with similar physical characteristics and industrial uses.

1. Ammonium Per sulphate (APS)

Ammonium Per sulphate is a water-soluble chemical compound with the formula (NH4)2S2O8. It is generally found as a white crystalline powder. The notification identifies its use as an initiator and oxidising agent in the textile and chemical industries.

2. Potassium Per sulphate (PPS)

Potassium Per sulphate has the chemical formula K2S2O8. It is another crystalline compound used in industrial chemical processes. The product falls within the investigation scope described by DGTR.

3. Sodium Per sulphate (SPS)

Sodium Per sulphate has the chemical formula Na2S2O8. Like APS and PPS, it is used as an initiator and oxidising agent in the industries identified in the notification.

Products Covered Under the Investigation

The notification describes the three products as white crystalline powders that are dry, soluble in water and capable of slowly decomposing. DGTR has adopted metric tonnes as the unit of measurement for the investigation.

For businesses importing these chemicals, the product description is particularly relevant because coverage depends on the defined goods rather than the importer's general business category.

Applicable HSN Codes and Proposed PCN Classification

DGTR has identified two customs tariff subheadings relevant to the products under investigation.

HSN Codes for Per sulphates Imports

The notification expressly states that these classifications are indicative. This means that a product's inclusion in the investigation must be assessed against the defined product description, not simply by checking its tariff code.

An importer using a different tariff classification should not automatically assume the product falls outside the investigation.

What Is a Product Control Number?

A Product Control Number, or PCN, helps distinguish product categories during an anti-dumping investigation.It allows products with different characteristics, costs, or prices to be identified for appropriate comparisons. In this case, the applicants have stated that the three Per sulphate categories differ in cost and price.

They have therefore proposed separate PCNs.

Proposed PCN Methodology

Interested parties may submit comments or suggestions on the product scope and PCN methodology within the prescribed 15-day period. This is a proposed methodology, and the Authority may consider the views received before taking further decisions.

Indian Manufacturers Involved in the Anti-Dumping Investigation

The investigation began following an application from two Indian manufacturers.

Applicants Who Filed the Case

Calibre Chemicals Private Limited and UI-VR Private Limited filed the application requesting an investigation into alleged dumping of Per sulphates from China. The notification also identifies other known producers of the subject goods in India. These include Yoyo Chemicals, Aminisha Organics LLP, Gujarat Persalts Private Limited and Ana Industries.

According to the applicants' submissions, Gujarat Persalts Private Limited and Ana Industries had stopped production of the subject goods. Yoyo Chemicals and Aminisha Organics LLP supported the application.

DGTR's Assessment of Domestic Industry Standing

Before initiating an anti-dumping investigation, DGTR must examine whether the applicants satisfy the relevant requirements for representing the domestic industry.

The Authority considered several circumstances.

• Imports from China: The applicants certified that they had not imported the subject goods from China during the period of investigation.
• Related overseas entities: Both applicants had related entities in China, but the notification records that these entities did not export the subject goods to India during the period of investigation.
• Other imports and domestic purchases: The notification discusses negligible imports by UI-VR from a related entity in Germany and certain domestic purchases made for resale.
• Share in Indian production: DGTR observed that the applicants accounted for a major proportion of Indian production of the like article.

On this basis, the Authority preliminarily considered that the applicants constituted the domestic industry under Rule 2(b) and that the application satisfied Rule 5(3). This preliminary standing assessment allowed the investigation to proceed.

Period of Investigation and Injury Assessment

DGTR must examine information from a defined period to assess the dumping allegations. The notification records the applicants' proposed period of investigation and the periods considered relevant to the injury analysis.

Proposed Period of Investigation

The applicants proposed the period from 1 April 2025 to 31 March 2026, covering 12 months.

Injury Investigation Period

Why Are These Periods Relevant?

An injury assessment looks at business performance over time rather than relying on a single month's import or sales figures.

DGTR can examine trends involving:

• Quantity of imports.
• Import prices.
• Domestic production.
• Domestic sales.
• Production capacity.
• Profitability.
• Return on investment.
• Cash profits.

The information helps the Authority examine whether the domestic industry experienced injury and whether dumped imports contributed to it.

How Will DGTR Determine the Alleged Dumping Margin?

The dumping margin is an important measure in an anti-dumping investigation. Broadly, it involves comparing the normal value of a product with its export price using the applicable legal methodology. The comparison must account for relevant differences and adjustments.

Determination of Normal Value for China

The applicants argued that China should be treated as a non-market economy for the purpose of determining normal value under the relevant provisions of Annexure I of the Anti-Dumping Rules. They proposed using consumption prices in the United States as a basis for assessing normal value. 

Their proposal referred to certain exports of APS, PPS and SPS made to related entities in the United States. Interested parties may comment on this proposed approach.

Methodology Considered by DGTR at Initiation

For the purpose of initiating the investigation, DGTR considered normal value based on the price payable in India. The Authority considered Indian production costs with adjustments for selling, general and administrative expenses and reasonable profit.

This is different from the methodology proposed by the applicants. The distinction is relevant because the final examination may involve submissions from different parties concerning the appropriate methodology.

Determination of Export Price

The notification states that the export price was determined by considering CIF prices reported in import data from the Directorate General of Commercial Intelligence and Statistics (DGCIS). CIF means Cost, Insurance and Freight.

The notification also records claimed adjustments for:

• Ocean freight.
• Marine insurance.
• Commission.
• Bank charges.
• Port expenses.
• Handling charges.

These adjustments are relevant when comparing normal value and export prices at the appropriate level.

Preliminary Dumping Margin Assessment

DGTR compared normal value and export price at the ex-factory level. The Authority found preliminary evidence that the dumping margin exceeded the de minimis level and was significant.

Nevertheless, the notice fails to give a figure for the dumping margin or the recommended anti-dumping duty. The provisional determination is for the start of the investigation, not for the determination itself.

What Evidence of Injury Has the Domestic Industry Submitted?

The applicants have identified several issues that they believe demonstrate injury from the alleged dumped imports.

1. Increase in Import Volumes

The application states that imports from China increased in both absolute and relative terms during the injury period.

2. Price Undercutting

The applicants claimed that imported Per sulphates were priced below the domestic industry's selling prices. Price undercutting can affect competition, particularly when buyers view imported and domestically produced goods as interchangeable.

3. Price Suppression

The petitioners claimed that imports had the effect of depressing prices. Practically speaking, price depression implies that domestic producers might find it difficult to raise prices even when the business environment suggests that they should.

4. Limited Growth in Domestic Sales

Despite increased manufacturing capacity and sufficient demand, the applicants stated that their domestic production and sales did not grow as expected.

5. Deterioration in Financial Performance

The applicants also referred to weaker profitability, return on investment and cash profits. These factors will require examination as part of the injury investigation. The Authority must consider the evidence and relevant submissions before reaching final findings.

Has Anti-Dumping Duty Already Been Imposed on Per sulphates from China?

The initiation notification of 30 September 2026 does not place an anti-dumping duty on imports of Per sulphates from China.

It merely initiates the investigation. Such information is important for those importing chemicals, as an investigation notification is legally distinct from a customs duty notification.

Difference Between Investigation and Duty Imposition

The initiation of an investigation does not guarantee a future anti-dumping duty.

Importers should continue to determine their actual customs liability from the applicable customs notifications rather than assuming this investigation creates a new charge.

Scope and Applicability of the Investigation

The investigation concerns Per sulphates originating in or exported from China PR. Several business groups may have a direct interest in its outcome.

Chinese Producers and Exporters

Companies producing or exporting the covered Per sulphates may submit relevant information under the investigation procedures.

Indian Chemical Importers

Businesses importing APS, PPS or SPS from China may be affected by the investigation's eventual outcome. Importers wishing to participate should understand the product scope and relevant filing requirements.

Indian Per sulphates Manufacturers

Domestic producers may submit information relevant to production, domestic sales, prices and injury.

Industrial Users

The notification identifies uses of Per sulphates in textile and chemical industries. Industrial users purchasing these products may have an interest in their availability, pricing and sourcing arrangements.

Chemical Distributors and Traders

Distributors dealing with the subject goods may also need to understand the investigation, particularly where they depend on imported supplies. Importantly, the notification does not introduce a separate mandatory import licence, product certification or new general registration requirement for all Per sulphates businesses.

The SETU registration requirement concerns interested parties participating in the investigation.

Participation Requirements for Importers, Exporters and Other Interested Parties

DGTR has provided a formal process for interested parties to participate.

Intimation of Interest

Interested parties are advised to inform DGTR of their interest in the investigation, including the nature of that interest.

Questionnaire Responses

Participating parties must submit the applicable questionnaire responses within the prescribed time limits.

Depending on the questionnaire, the information requested may relate to sales, production, costs, exports, imports or other relevant matters. Businesses should rely on the actual questionnaire rather than assuming a standard document list applies to every participant.

Supporting Information

Responses should be accurate, complete and supported by relevant records. The Authority may examine submitted information and seek clarification as permitted under the applicable procedure.

Importance of Timely Participation

Delays and incomplete responses can affect the consideration of a party's information. For businesses wishing to present their position, it is sensible to review the notification and applicable questionnaire promptly.

How to Submit Information Through the DGTR SETU Portal

DGTR requires investigation submissions to be filed through the SETU portal.

The notification explains that information sent through email or other methods may not be considered.

SETU Registration

Interested parties participating in the investigation must register through the official portal.

Submission Requirements

The notification requires filings under the registered name of the interested party and the corresponding case ID.

It also specifies the formats for different types of information.

Excel calculations should be appropriately linked.

Why the Submission Format Matters

DGTR needs to examine the evidence and supporting calculations provided by participating parties. Submitting files in the required format helps make the information accessible for examination. Businesses should also check whether additional instructions have been issued through the portal or relevant DGTR trade notices.

Important Deadlines Under the DGTR Investigation

The notification specifies different periods for filing responses and submitting comments. These periods are important because their starting points are not necessarily the Gazette publication date.

Key Filing Deadlines

How Is the 37-Day Response Period Calculated?

The notification states that confidential and non-confidential submissions must be filed within 37 days from the communication of the specified notice to identified interested parties or its transmission to the appropriate diplomatic representative.

Businesses should not simply add 37 days to 30 September 2026 without checking the relevant communication.

When Are Additional 15 Days Available?

The notification provides a 15-day extension where DGTR subsequently modifies the product under consideration or PCN methodology in the manner specified.

This extension does not apply simply because an interested party needs more time.

How Can an Extension Be Requested?

An extension request must be submitted through SETU at least one day before the original deadline. Requests made after the specified time will not be considered under the notification. Further extensions are generally restricted to exceptional circumstances.

Confidentiality Requirements for DGTR Submissions

Anti-dumping investigations can involve commercially sensitive information, including prices, costs and other business data. The notification therefore contains specific instructions for confidential submissions.

Confidential and Non-Confidential Versions

A party submitting confidential information must also submit a non-confidential version. The non-confidential version should reflect the original submission while appropriately protecting confidential details.

Proper Identification of Confidential Material

Every page must be clearly marked as confidential or non-confidential. Where a page is not marked, DGTR may treat the information as non-confidential.

Non-Confidential Summaries

Confidential information should ordinarily be appropriately indexed, summarised or blanked out where necessary. The non-confidential version must still allow a reasonable understanding of the substance of the information.

Reasons for Claiming Confidentiality

The requesting party needs to give good grounds for why the information should remain confidential.DGTR can look into whether such grounds are valid.

Consequences of Inadequate Confidentiality Submissions

Submissions lacking a meaningful non-confidential version or sufficient justification may not be taken on record. Businesses should therefore review both versions before filing.

What Happens If an Interested Party Does Not Cooperate?

The notification includes provisions addressing non-cooperation.

DGTR may treat a party as non-cooperative where it fails to provide required information or significantly obstructs the investigation.

Circumstances That May Amount to Non-Cooperation

• Refusing access to necessary information.
• Failing to submit required information within the specified period.
• Providing incomplete information.
• Significantly impeding the investigation.

Consequences of Non-Cooperation

The Authority may proceed using facts available on record. It may also make recommendations to the Central Government as it considers appropriate under the applicable rules. For a participating business, this means that failing to provide information could affect how its circumstances are assessed. The initiation notification does not set out a separate monetary penalty for every instance of non-cooperation.

Impact on Indian Chemical Manufacturers, Importers and Other Businesses

The investigation may affect different businesses in different ways. The immediate concern is participation in the proceedings. Commercial effects will depend on the final findings and any subsequent government action.

Impact on Domestic Per sulphates Manufacturers

Indian Per sulphates manufacturers may view the investigation as an opportunity for their claims concerning import pricing and injury to be examined.

If DGTR eventually recommends a measure and the government imposes it, market conditions may change. However, the initiation notification does not guarantee relief to domestic producers.

Impact on Indian Chemical Importers

Importers sourcing Per sulphates from China may need to monitor the investigation and review their potential exposure. If a duty is imposed later, the landed cost of covered imports could change. Businesses may therefore consider examining supplier contracts and pricing arrangements.

Impact on Chinese Exporters

Chinese manufacturers and exporters may have an interest in submitting information concerning their products, sales and relevant costs. Participation allows them to present information for the Authority's consideration.

Impact on Textile and Chemical Industries

Per sulphates are used as industrial chemicals in the sectors identified by the notification. Businesses purchasing these products may need to monitor whether a future trade remedy could affect procurement costs. There is no basis in the initiation notification to conclude that industrial users must immediately pay more.

Impact on MSMEs and Chemical Distributors

Smaller importers and distributors may have fewer resources available for reviewing complex trade remedy documents. They may need appropriate import compliance assistance to identify whether their products are covered and whether participation is relevant.

Stakeholder Impact Summary

These possible commercial effects should not be confused with confirmed consequences of the initiation notification.

How Could Anti-Dumping Duty Affect Per sulphates Import Costs?

An anti-dumping duty, if imposed in the future, could affect the landed cost of importing the covered products. However, the amount would depend on the scope and rate of any duty actually imposed.

The initiation notification does not provide a final duty rate.

Possible Effect on Landed Costs

An additional duty could increase the amount payable on qualifying imports. The effect would depend on the applicable customs framework and the final duty notification.

Effect on Supplier Contracts

Importers may need to review whether existing purchase agreements address changes in customs duties or import costs.

Effect on Product Pricing

Businesses distributing imported Per sulphates may need to assess how any future increase in landed costs could affect selling prices.

Effect on Procurement Decisions

Importers may consider comparing domestic and overseas sourcing options according to quality, availability and total procurement cost. Such assessments are commercial precautions and not mandatory steps introduced by the investigation notification.

Challenges and Possible Business Opportunities

The investigation creates several practical considerations for businesses involved in the Per sulphates market.

Challenges for Indian Importers

One challenge is uncertainty over the eventual outcome. Importers cannot determine future duty liability from an investigation initiation alone.

Businesses participating in the investigation may also need to gather detailed commercial information and meet prescribed filing deadlines.

Challenges for Domestic Manufacturers

Domestic manufacturers seeking relief must support their position with reliable information. Claims concerning dumping and injury are subject to examination.

A domestic manufacturer's support for the investigation does not automatically establish that a duty should be imposed.

Possible Opportunities for Domestic Suppliers

A future trade remedy could change the competitive conditions faced by domestic producers. However, commercial benefits would depend on factors such as production capacity, product availability, demand and final government action.

Supply Chain Planning

Businesses may consider reviewing their dependence on particular suppliers and the terms of their procurement contracts. Such planning can help assess commercial exposure without assuming that the investigation will necessarily result in a duty.

What Businesses Should Do Next

Businesses involved in the import, manufacture or use of Per sulphates should focus on understanding the investigation and deciding whether they need to participate.

1. Confirm Whether the Product Is Covered

Check whether the goods concerned are Ammonium, Potassium or Sodium Per sulphate. Review their chemical description and relevant specifications.

2. Review Applicable HSN Codes

Compare the import classification with the two subheadings mentioned in the notification. Do not rely only on the HSN code when assessing product coverage.

3. Examine the Proposed PCN Categories

Businesses dealing with different Per sulphate grades or categories should consider the proposed classification methodology.

4. Determine Whether Participation Is Relevant

Importers, exporters and other interested parties should review whether they have information or interests to present to DGTR.

5. Check Applicable Filing Dates

Determine the pertinent notice or intimation date before computing deadlines.

6. Gather Supporting Information

In cases where a company opts to join in, refer to the applicable questionnaire and gather information.

7. Observe SETU Filing Guidelines

Employ the correct filing mechanism and case ID number.

8. Consider Confidentiality Issues

Gather the appropriate information, whether confidential or not.

9. Keep Track of Additional DGTR Notices

Refer to any notices with regard to the scope of products, questionnaire, hearing procedures and findings.

10. Consider Potential Commercial Risk

Analyze the import volumes and purchase agreements and other sources of commercial risk.

What Happens After DGTR Completes the Investigation?

An initiation notification is the beginning of the investigation process. DGTR must examine the relevant evidence before reaching conclusions.

Examination of Questionnaire Responses

The Authority will consider information submitted by interested parties according to the applicable procedures.

Further Information and Hearings

Additional information, procedural notices and opportunities for hearings may form part of the investigation process. Businesses should follow official notices rather than assuming a particular date or hearing schedule.

Disclosure and Final Findings

The Authority may issue relevant disclosures and final findings under the governing framework. Its findings will address matters such as dumping, injury and causal link.

Possible Recommendation of Anti-Dumping Duty

If the investigation supports a recommendation for anti-dumping duty, DGTR may recommend an appropriate measure.

Government Decision

A duty is imposed only through the applicable legal action by the competent government authority. The investigation could also end without the imposition of a duty.

The notification does not establish the outcome.

How Can Corpseed Help?

For chemical importers and manufacturers, understanding the product scope and the difference between an investigation and an actual duty is important.

Corpseed provides regulatory support to businesses dealing with import and other compliance requirements. Its Import Compliance Services can help companies review the regulatory requirements relevant to their operations.

Depending on the business's requirements and service availability, Corpseed can assist with the following areas.

Import Compliance Assessment

Reviewing import-related regulatory requirements and identifying issues relevant to a business's products or activities.

Product Classification Assistance

Supporting companies in reviewing product descriptions, specifications, and the relevant customs classification process.

Regulatory Compliance Assistance

Guiding companies on relevant regulations and identifying issues related to compliance.

Compliance Documentation Review

Supporting the review and organisation of relevant import and business compliance documentation.

Import Regulatory Advisory

Guiding applicable import-related requirements and regulatory developments.

Compliance Gap Assessment

Identifying differences between a business's current arrangements and relevant regulatory requirements.

Coordination for Specialist Requirements

Where trade remedy representation or specialised legal work is needed, the business may require assistance from an appropriately qualified professional.

Why Should Businesses Consider Professional Compliance Support?

Chemical import regulations can involve several different requirements, and not every regulatory announcement creates the same obligations. An investigation notification, a customs duty notification and an import licensing requirement have different purposes.

Understanding which requirements actually apply can help businesses avoid unnecessary filings and make better-informed commercial decisions. 

For assistance with chemical import compliance, product classification and relevant regulatory requirements, businesses can contact Corpseed to discuss suitable Import Compliance Services.

Key Takeaways

The DGTR Per sulphates anti-dumping investigation concerns allegations that imports from China are being dumped and causing injury to Indian manufacturers.

The notification is relevant to domestic producers, Chinese exporters, Indian importers and businesses using the subject chemicals.

• DGTR initiated the investigation on 30 September 2026.
• The investigation covers APS, PPS and SPS.
• Calibre Chemicals Private Limited and UI-VR Private Limited filed the application.
• The Authority has found sufficient preliminary evidence to begin investigating the allegations.
• Interested parties must follow the relevant SETU filing requirements and deadlines.
• The general response period is linked to communication or transmission of the specified notice.
• No new anti-dumping duty is imposed through the initiation notification.
• Businesses should monitor further official developments before making decisions based on a possible future duty.