Gypsum Board Manufacturers in Thailand: Gypsum Rock and Export Market

Gypsum board manufacturers in Thailand include Thai Gypsum Products (Gyproc) and Gypman Tech, and they work from a mining base that USGS estimated at 8.7 million t of gypsum in 2025. World Bank WITS data show about 416,000 t of board exports in 2023 and tiny imports. A new plant is therefore an export and competition decision, not an import-replacement one.

This is desk research from the public sources listed at the end. It treats Thailand as a raw material and export base, while our companion note on gypsum board manufacturers in the Philippines looks at an importing market next door. For general method, see reading the gypsum board market.

Gypsum Board Manufacturers in Thailand: Who Is Visible

Thailand has an old, established board industry, and public sources show at least two licensed or long-running makers. The list below is not complete.

Ask distributors and TISI who else holds a licence. A register check takes little effort and will tell you more than a report-site “market share” table.

Thai Gypsum Rock: Reserves and Where the Mines Are

Rock is Thailand’s clear advantage: USGS lists 910 million t of reserves, compared with mine output of about 8.7 million t in 2025.

A DPIM active-mines table for 2017–2021 lists operating gypsum mines in four provinces: Surat Thani (15), Nakhon Sawan (11), Nakhon Si Thammarat (7) and Phichit (1). It does not say which year these counts represent, so treat them as an order of magnitude.

Our 3,000,000 m² a year reference line uses 7.0 kg of stucco per m², and 1 t of stucco takes about 1.19 t of pure gypsum, so one line is a tiny share of national output. Total tonnage is not the constraint. Three things matter more:

1. Geography. The largest mine groups sit in the south and the upper center, whereas Gyproc’s plants are near Bangkok and on the eastern seaboard. Haulage or coastal shipping belongs in the first model.
2. Who will sell to you. Ask whether the mine owners already have long-term buyers. Cement is a large competing user, with about 39 million t of output in 2021, according to USGS.
3. Quality. The next subsection covers this.

Test the rock first: anhydrite and quality

Thai rock should be tested deposit by deposit, because a national reserve figure says nothing about a given quarry. Two public facts support this.

USGS reports anhydrite alongside gypsum, at about 15% of 2021 output by our estimate. Anhydrite carries no chemically bound water and does not behave as dihydrate during calcination, so a mixed feed changes both your yield and your stucco. Our figure of 1.19 t of gypsum per tonne of stucco applies to pure gypsum, and more rock is needed as impurities rise.

The second fact comes from a buyer. A plant in the Philippines told its tariff regulator in 2023 that it had shifted to Omani rock to meet its quality standards, despite Thai rock’s zero duty under a free trade agreement. That is one buyer in a petition asking for tariff relief, so read it with that in mind. Still, it is reason enough not to assume that Thai rock suits every line.

Send representative samples from several benches, and include purity, anhydrite, clay, chloride and moisture. Our note on natural vs synthetic gypsum and calcination temperature explains why they matter.

Gypsum Export Controls: A Limit Worth Understanding

Thailand limits gypsum exports under a measure notified to the WTO in 2025, so rock is not a free commodity for overseas buyers.

That WTO notification describes a measure called “Control of the exporting quantity of Gypsum”. It rests on a 2024 DPIM notification on rules for managing exported gypsum, and it is justified under GATT Article XX(g), on the conservation of exhaustible natural resources. The entry also sets a minimum export price. Global Gypsum reported that DPIM set the 2020 export quota at 6.0 million t, against 2019 exports of 5.04 million t. We could not find the current year’s quota, so check with DPIM.

What this means depends on where your plant is:

• A plant inside Thailand buys domestically, so the export rules do not apply to its feed in the same way. Confirm the domestic terms with DPIM and the mine owner.
• A plant in a neighboring country relying on Thai rock depends on its exporter’s allocation. Ask for evidence of it in the supply contract, and keep a second origin qualified.

Thailand as a Regional Board Export Base

Thai board exports are large and concentrated in neighboring countries, with imports close to nil.

Recorded imports were only about 897 t in 2023, almost all from China.

Assuming 9 kg/m² for 12 mm board, exports equal about 46 million m² in our estimate. Domestic sales come on top of that, and we found no reliable public figure for them.

Three readings follow from the table. Land neighbors, such as Cambodia, Myanmar and Laos, take about 39% of the total by our estimate, and road delivery from Thailand is hard to beat. Sea markets such as Singapore and the Philippines are more open to other origins, and Malaysia can be reached either way. And long-distance tonnage to New Zealand and Tanzania shows that exporters will ship board far.

Spare capacity and trade remedies

The main warning for a new Thai exporter is spare capacity at home and growing defense abroad. The complaining side in a Philippine trade hearing argued in 2025 that Thai makers had substantial unused capacity. That is advocacy and needs checking, but it is the only public statement on the point we found.

The Philippines has since applied a five-year anti-dumping duty to standard Thai board, from February 2026. Exporters new to that market are handled through a review or a residual rate, so read the order itself. For a new plant, the lesson is broader than that one market: when importing countries build their own plants, they may also protect them. Check duty status and local capacity in each target market separately.

TIS 219: The Thai Gypsum Board Standard

The Thai gypsum board standard is TIS 219, and its current edition should be confirmed with the Thai Industrial Standards Institute. Sources show the edition changing: a TISI licence issued in 2025 cites TIS 219-2566 (2023), whereas a Gyproc product page still cites TIS 219-2552 (2009).

The 1,200 × 2,400 mm format suits our reference line width of 1.2 m. Exports are another matter, since a line serving several markets may also need to prove ASTM C1396 or EN 520 and different sizes. List each market and size in your brief, since changeovers affect real capacity.

Natural Gas Supply in Thailand

Thailand has a gas industry, though it also relies on imports, so a site with piped gas still needs a contract check. USGS reports production of 33.1 billion m³ in 2021 and imports of 15.7 billion m³, with one field, Erawan, supplying 27% of domestic output. Those figures are several years old, so check current supply and tariffs.

Our reference line burns 1.5–2.0 million m³ of natural gas a year and has 600–800 kW installed. Ask the gas supplier for a written offer at your plot, because a southern site close to the rock may not offer the same fuel options as an eastern seaboard industrial estate. Confirm power, including voltage and frequency, with the local electricity authority or your estate operator.

Where a New Investor Could Fit

On public data, Thailand favors an investor with a specific angle, and it offers little room for one more standard-board exporter. These are our judgments, and each needs testing with your own numbers.

Use gypsum board plant cost to set out the cost blocks and compare the options on the same inputs.

FAQ

Who are the gypsum board manufacturers in Thailand?

Public sources name Thai Gypsum Products, which makes Gyproc board at Bang Pa-in and Laem Chabang, and Gypman Tech, a named exporter in the Philippine duty order. This list is incomplete, so check Thai Industrial Standards Institute licence records and ask distributors which other makers are active before you treat it as a full competitor map.

How much gypsum does Thailand produce?

USGS estimates Thai mine production at 8.7 million t in 2025, with reserves of 910 million t. Its 2020–21 yearbook records anhydrite separately, at about 1.6 million t in 2021. WITS shows about 5.25 million t of rock exports in 2023. Operating mines are mainly in Surat Thani, Nakhon Sawan and Nakhon Si Thammarat provinces, according to DPIM’s active-mine table.

Does Thailand restrict gypsum exports?

Yes. Thailand has notified the WTO of a measure controlling gypsum export quantities, based on a 2024 Department of Primary Industries and Mines notification and justified on resource conservation grounds. Global Gypsum reported a 6.0 million t quota for 2020. We could not find the current figure, so a foreign plant using Thai rock should check its supplier’s allocation.

What is the Thai standard for gypsum board?

The standard is TIS 219, administered by the Thai Industrial Standards Institute. A licence issued in 2025 cites the 2566 (2023) edition, while one manufacturer’s page still shows 2552 (2009). We could not confirm from sources we could open whether certification is compulsory for all board sold, so check the current edition and its status directly with TISI.

Where does Thailand export gypsum board?

WITS records about 416,000 t of exports in 2023, led by Cambodia, Malaysia, Singapore, Myanmar and the Philippines, then Laos and Vietnam. Smaller flows reach New Zealand and East Africa. Since 2026 standard Thai board has faced an anti-dumping duty in the Philippines, so exporters should check the duty position in each market before counting on that volume.

Planning a Gypsum Board Line in Southeast Asia?

When your rock and customers are confirmed, the gypsum board production line page shows the sections and consumption of our reference design, and the gypsum board plant setup guide sets out the planning steps. YuxingCorp is a Singapore company that compares lines from vetted manufacturers in China; import clearance, duties and local registration stay with the buyer.

Sources

• USGS, Mineral Commodity Summaries 2026: Gypsum: https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-gypsum.pdf
• USGS, 2020–21 Minerals Yearbook: Thailand: https://pubs.usgs.gov/myb/vol3/2020-21/myb3-2020-21-thailand.pdf
• World Bank WITS, Thailand HS 252010 exports, 2023: https://wits.worldbank.org/trade/comtrade/en/country/THA/year/2023/tradeflow/Exports/partner/ALL/product/252010
• World Bank WITS, Thailand HS 680911 exports, 2023: https://wits.worldbank.org/trade/comtrade/en/country/THA/year/2023/tradeflow/Exports/partner/ALL/product/680911
• World Bank WITS, Thailand HS 680911 imports, 2023: https://wits.worldbank.org/trade/comtrade/en/country/THA/year/2023/tradeflow/Imports/partner/ALL/product/680911
• DPIM, Mineral statistics of Thailand 2017–2021, active mines: https://catalog.dpim.go.th/dataset/413fab34-cf1b-4618-bd83-9d7a83a89d2c/resource/2c1aafe0-8123-4eba-8d6b-44b8564d3d1c/download/mineral-statistics-of-thailand_2017-2021_active-mines.pdf
• WTO Quantitative Restrictions database, Thailand notification 9093: https://qr.wto.org/en/qrs/9093/10636
• Global Gypsum, DPIM lowers Thai gypsum export quota (March 2020): https://globalgypsum.com/news/1756-department-of-industry-and-mines-lowers-thai-gypsum-export-quota
• Gyproc Thailand, factory and warehouse: https://www.gyproc.co.th/en/gyproc-factory-and-warehouse
• Gyproc Thailand, Regular Board 9 mm: https://www.gyproc.co.th/en/products/gyproc-regular-board-9mm
• Thai Industrial Standards Institute, licence 8205-45/219: https://appdb.tisi.go.th/tis_dev/p4_license_report/file/8205_45_219.pdf
• Thai Green Label, TGL-49-10 gypsum board criteria: https://greenlabel.tei.or.th/wp-content/uploads/2024/06/TGL-49-10-1.pdf
• Philippine Daily Inquirer, anti-dumping duties on Thai gypsum boards (2025): https://business.inquirer.net/516833/anti-dumping-duties-on-thai-gypsum-boards-urged/amp
• PortCalls, BOC implements anti-dumping duty on Thai gypsum board (February 2026): https://portcalls.com/boc-implements-anti-dumping-duty-on-thai-gypsum-board/
• Manila Bulletin, gypsum board manufacturer seeks duty exemption (February 2023): https://mb.com.ph/2023/2/28/gypsum-board-manufacturer-seeks-duty-exemption-on-imported-raw-materials