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The Department of Trade and Industry ordered the imposition of anti-dumping duties on imports of gypsum board from Thailand for five years
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An earlier Tariff Commission investigation established “dumped imports from Thailand caused material injury to the domestic industry”
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The remainder or the difference from the cash bond earlier implemented as a provisional safeguard measure will be returned to the concerned importers upon effectivity of the DAO
The Department of Trade and Industry (DTI) has ordered the imposition of anti-dumping duties on imports of gypsum board from Thailand.
The safeguard measure under DTI Department Administrative Order (DAO) No. 2025-05 dated June 18 follows a Tariff Commission (TC) order premised on an investigation that established “dumped imports from Thailand caused material injury to the domestic industry…”
The anti-dumping duties will be imposed for a period of five years on imports of standard gypsum board, faced or reinforced with paper or paperboard only, classified under AHTN (ASEAN Harmonized Tariff Nomenclature) 2022 subheading 6809.11.000 originating from Thailand.
The dumping margin (as a percentage of export price) for Gypman Tech Co. Ltd. is 8.5% and for Thai Gypsum Products PCL and all other exporters from Thailand, 9.18%.
DAO 2025-05 said the highest dumping margin will serve as the residual duty or “all other rate” that will be applied to foreign exporters of gypsum boards who did not make themselves known to TC; those that did not cooperate sufficiently during the conduct of formal investigation, and those that are new foreign exporters who have not exported to the Philippines during the period of investigation (POI) from January 2022 to May 2023.
For exporters or producers in Thailand who have not exported standard gypsum board, faced or reinforced with paper or paperboard, to the Philippines from 2019 to September 2024, their individual margins of dumping will be determined following a review. No anti-dumping duties will be levied on imports from such exporters or producers while the review is being carried out.
Excluded from the anti-dumping duties are specialty or technical gypsum boards that are also classified under AHTN 2022 subheading 6809.11.000; and gypsum boards, faced or reinforced with materials other than paper or paperboard that are classified under AHTN 2022 subheading 6809.19.90.
With regard to the cash bond that has been filed and collected as provisional anti-dumping duty pursuant to DAO No. 24-10, and given that the same is in excess of the anti-dumping duty assessed by TC, the remainder or the difference will be returned to the concerned importers upon effectivity of DAO 2025-05.
DAO 24-10 issued last year approved the imposition for four months of provisional dumping duty in the form of cash bond on imports of gypsum board from Thailand.
DAO 2025-05 will take effect after the lapse of the period to file a motion for reconsideration or upon a negative resolution of the motion for reconsideration if one has been filed, and upon issuance of the relevant Bureau of Customs order implementing the DAO.
Knauf Gypsum Philippines, Inc.—the only manufacturer of gypsum board in the country—filed a petition for anti-dumping duty on imported gypsum board for Thailand on November 24, 2023, alleging such imports are being dumped in the country and are causing material injury to the domestic gypsum board industry.
DTI found merit to initiate a preliminary anti-dumping investigation. On May 30, 2025, DTI received the TC’s final report and determination on its formal investigation on Knauf Gypsum Philippines’ application.
In accordance with Republic Act 8752 or the Anti-Dumping Act of 1999, and the World Trade Organization Anti-Dumping Agreement, TC concluded that during the POI for dumping determination of January 2022 to May 2023, there was dumping of standard gypsum board from Thailand.
The volume of imports of standard gypsum board at dumped prices is not negligible, accounting for 71% of the total Philippine imports of standard gypsum board from 2019 to September 2024.
Moreover, TC said there was significant price undercutting by dumped imported board, which led to price suppression as the industry’s average prices were lower than average costs to produce and sell in order to remain competitive and protect market share.
While there are other factors that contributed to the impairment in the overall position of the domestic industry, TC finds that the results, when taken together, show that dumped standard gypsum boards from Thailand caused injury to the domestic industry.
