India's Countervailing Duty on Vietnamese Calcium Carbonate Masterbatch: What the CBIC Notification Will Mean (2026)

In short: On 24 June 2026 DGTR published final findings recommending a five-year countervailing duty on Vietnamese calcium-carbonate filler masterbatch — US$9.11–16.03/MT for named producers, US$69.19/MT residual — to stack on the anti-dumping duty in force since December 2025. But a recommendation is not a duty: nothing is collected until CBIC issues the imposing customs notification, expected by roughly late September 2026. This explainer covers what that notification is, why the gap between findings and collection exists, exactly what changes on day one, the producer-by-producer stack it creates (up to US$144.19/MT combined on residual channels), what it does not cover — raw GCC powder — and the four actions worth taking before it is issued.

The Directorate General of Trade Remedies (DGTR) concluded its countervailing-duty investigation — Case CVD(OI)-03/2024, F.No. 6/39/2024-DGTR, initiated 27 December 2024 on a petition by the Compounds and Masterbatch Manufacturers Association of India (CMMAI) and the Masterbatch Manufacturers Association (MMA) — and published final findings recommending a definitive CVD on calcium-carbonate filler masterbatch from Vietnam.

The Authority's conclusion: the Government of Vietnam subsidizes its masterbatch producers — through tax benefits, interest concessions, land rebates, and the supply of goods (notably limestone) at less than adequate remuneration — and those subsidized imports materially injured the Indian industry. The recommended rates:

The US Masterbatch line is the one entry that needs explaining: DGTR assessed a US$22.52 subsidy-based rate but directed that it not be collected, because that company's anti-dumping duty (it sits at the US$75 residual ADD) plus the CVD would together exceed its injury margin — and under the lesser-duty rule, the combined remedy cannot overshoot the injury it offsets. It is a working example of how the two measures are coordinated rather than simply piled up.

India's trade-remedy system splits the decision in two. DGTR (Ministry of Commerce) investigates and recommends; the Ministry of Finance — through the Central Board of Indirect Taxes and Customs (CBIC) — decides whether to impose, by issuing a customs notification in the Official Gazette. Until that notification exists, the recommended CVD is a published number with no legal force at the port.

Three practical consequences:

• Today, only the ADD is collected. A Vietnamese masterbatch consignment clearing Nhava Sheva this month pays its anti-dumping duty (Nil–US$75/MT by producer) and no CVD.
• The window is roughly three months. The Department of Revenue's standard window for acting on DGTR final findings is three months — from 24 June 2026, that points to late September 2026. The precedent from this same product's anti-dumping case is instructive: ADD final findings were published 27 September 2025, and CBIC's imposing notification (37/2025-Customs (ADD)) followed on 24 December 2025 — two days under that window.
• Imposition is expected, not automatic. The Ministry of Finance occasionally declines to act on a DGTR recommendation. Given that it already imposed the ADD on this exact product seven months ago, a decline here would be surprising — but until the notification is in the Gazette, treat the CVD as a cost to plan for, not yet a fact. And when it does issue, read the notification itself: the final rates and producer combinations are whatever the Gazette text says, which can occasionally differ in detail from the findings.

When the notification publishes, the mechanics are immediate and mechanical:

1. Collection starts at the bill of entry. Any consignment presented for clearance from the notification date pays the applicable CVD on top of its ADD. There is no retroactive application: the final findings record no provisional CVD and no retrospective recommendation, so imports cleared before the date are untouched.
2. The five-year clock starts. DGTR recommended the duty run five years from the notification date — on the ADD precedent, that means both measures run to late 2030 and beyond, subject to reviews.
3. The invoice-declaration condition takes effect. The named producer rates apply only against a commercial invoice carrying the prescribed producer-signed declaration. No declaration — or a producer/exporter pairing that doesn't match the notification table — means the residual US$69.19 applies, on top of whatever ADD treatment the same mismatch produces.
4. The combined stack becomes the real price of the finished-masterbatch route. For channels named in both measures, the combined ADD+CVD lands between US$13.42 and US$50.33/MT. Channels named in only one measure, or neither, face US$75–144.19/MT — roughly US$94–180 per tonne of contained CaCO₃ at typical masterbatch content. The full producer-by-producer arithmetic, run through the complete landed-cost build-up, is in the worked example.

Equally important is what stays unchanged:

• Raw GCC powder stays outside scope. The product under consideration is the compounded masterbatch — an extruded granule of CaCO₃ (more than 50%) in a PP/PE carrier, cleared under HS 3824.99. Raw ground calcium carbonate powder (HS 2836.50) is a different product — no polymer carrier, different tariff chapter — outside both measures by product definition. It continues to enter at 0% under AIFTA with Form AI. No trade-remedy case on raw CaCO₃ powder exists on DGTR's docket as of July 2026.
• It is not a ban, and it does not block all imports. Trade-remedy duties raise prices; they do not prohibit imports. An Tien's channel, at Nil ADD + US$13.42 CVD, remains a viable import route — the measures mostly re-price the uncooperative and unnamed supply chains.
• AIFTA still works — on the basic duty. Form AI continues to zero the basic customs duty on both masterbatch and powder. What it has never done is protect anything from trade-remedy duties, which apply on top of preferential rates.

For an importer, converter, or compounder exposed to Vietnamese masterbatch, the weeks before the notification are when acting costs least:

1. Map your channel. Producer and exporter, against both tables — the ADD notification in force and the CVD findings. If your supply arrives via a trader, confirm whether the routing preserves the named combination; if it doesn't, you are a residual-rate buyer whether you know it or not.
2. Update contracts that span the date. Contracts, standing orders, and inventory positions running past September should carry the recommended CVD in their math. A "we will handle it when it is notified" position ignores a known, quantified cost increase.
3. Model the powder route now. If you compound in-house, run PVC dry blend, or can reach a toll compounder, the raw-powder route carries neither duty — the honest comparison (duty saved vs conversion premium, per tonne of masterbatch-equivalent) is in the worked example, and the operational bar is in the switching guide.
4. If powder wins, qualify before the deadline, not after. A filler qualification — sample against your current grade, lab comparison, line trial — takes weeks. Buyers who start at the notification will pay the stacked duty through their whole qualification window; buyers who start now arrive at the date with a qualified alternative in hand.

This case also carries a broader signal. It is the second trade-remedy measure on the same Vietnamese product inside a year, brought by the industry's own producer associations (CMMAI and MMA) — an industry that has shown it will use the trade-remedy system, and use it competently. For import-dependent buyers, the structural lesson is not "Vietnam is closed" — it is that finished-product import routes carry policy risk that raw-material routes largely do not. The masterbatch is dutied; the mineral it is made of is not. Buyers who own the compounding step — the genuine, value-adding manufacture the duty structure rewards keeping in India — keep that choice in their own hands.

Has India imposed the countervailing duty on Vietnamese calcium carbonate masterbatch yet?

Not yet, as of July 2026. DGTR published its final findings on 24 June 2026 (F.No. 6/39/2024-DGTR) recommending a definitive five-year CVD — but a DGTR recommendation is not a duty. Collection begins only when the Ministry of Finance (CBIC) issues the imposing customs notification, which is expected within the standard three-month window, so by roughly late September 2026. Until then, only the anti-dumping duty of December 2025 is collected on Vietnamese masterbatch.

What CVD rates did DGTR recommend for Vietnamese masterbatch producers?

US$15.16/MT for the Europlast Group (EuroPlast, Yen Bai, Nghe An and Polyfill), US$14.20/MT for ADC Plastic, US$13.42/MT for An Tien Industries, US$9.11/MT for Vitaplas, US$16.03/MT for Vietnam Industrial Minerals International, and US$69.19/MT residual for all other producers. US Masterbatch was assessed at US$22.52/MT, but DGTR directed that it not be collected, because its residual anti-dumping duty plus the CVD would exceed its injury margin under the lesser-duty rule.

When will the CBIC notification take effect, and is it retroactive?

The duty applies from the date the imposing notification is published in the Gazette — DGTR's final findings recommend the five-year term run from the notification date. The findings record no provisional CVD in this case and make no retrospective recommendation, so imports cleared before the notification date are not reached; a consignment cleared before the date pays no CVD, and one cleared after it pays the applicable rate. Precedent from the same product's anti-dumping case suggests the timing: final findings were published 27 September 2025 and CBIC notified the duty on 24 December 2025 — just under the standard three-month window.

Will the CVD apply to raw calcium carbonate powder imports from Vietnam?

No. The product under consideration is calcium carbonate filler masterbatch — an extruded compound of CaCO₃ (more than 50% by volume) in a polymer carrier such as PP or PE, cleared under HS 3824.99. Raw ground calcium carbonate powder (HS 2836.50) has no polymer carrier and is outside the scope of both the CVD final findings and the existing anti-dumping duty by product definition. There is also no separate trade-remedy case on raw CaCO₃ powder on DGTR's docket as of July 2026. Vietnam-origin raw powder continues to enter at a 0% preferential duty under AIFTA with a Form AI certificate.

What should masterbatch importers do before the notification is issued?

Four things: (1) map your actual producer/exporter pairing against the recommended rate table — named rates need the exact combination plus a producer-signed invoice declaration, otherwise the residual applies; (2) price the recommended CVD into any contract or inventory position that runs past September 2026; (3) if you compound in-house or run PVC dry blend, model the raw-powder route now — it carries neither duty; and (4) if the powder route wins, start sample qualification before the notification, because a filler qualification takes weeks and duty is collected from day one.

Weighing the powder route before the notification is issued? Tell us your application, current masterbatch channel, and port — and we'll send a free qualifying sample (under a tonne) of our premium high-whiteness GCC powder with the full technical data sheet and per-lot certificate of analysis, so your qualification is done before the duty starts, not after.

We produce premium GCC (ground calcium carbonate) — the four-grade Kantor KC Series in Vietnam — raw powder, coated and uncoated, high-whiteness (approaching 98%) — with Form AI documentation for the 0% AIFTA line, alongside China-origin resin, handled as one relationship.

Status as of July 10, 2026, verified against the primary documents: DGTR Final Findings F.No. 6/39/2024-DGTR (24 June 2026) and Notification 37/2025-Customs (ADD) (24 December 2025). This article will be updated when the CBIC imposing notification issues — rates and producer combinations then follow the Gazette text; confirm your specific line on ICEGATE or with your customs broker before contracting.

See also: The Full Duty Math, Producer by Producer (Worked Example) · India's ADD Rate Table and Landed-Cost Build-Up · Switching from Masterbatch to Raw GCC Powder · The India GCC Cornerstone · India Market Hub.