How much import duty for Chapter 25 “Salt; Sulphur; Earths and Stone; Plastering Materials, Lime and Cement”? Rates and import regulations for 109 tariff lines

How are tariff rates distributed across Chapter 25's tariff lines?

Calculated from each tariff line's Column 1 rate, 109 tariff lines in total. Source: HowBridge Tariff Database (synced with Customs Administration, Ministry of Finance tariff data), compiled 2026-09-16.

What import regulation codes commonly appear in Chapter 25?

Import regulation codes are marked on the tariff line and indicate inspection, quarantine, permit, or mainland China import controls that may need to be handled before import. A code may apply only to some of the goods under that tariff line — click into the tariff line for the full description. A tariff line with no code means import is permitted and no permit is required from a trade-control standpoint, but this does not mean the goods are exempt from inspection, quarantine, or duty.

What tariff lines are in Chapter 25?

2501 鹽（包括食鹽及加工鹽）及純氯化納，不論是否為水溶液或添加抗結塊劑或暢流劑之鹽；海水

• 25010010008Crude salt, solely for industrial use0%
• 25010020006Pure sodium chloride ( noniodized purity 99.5% or more )1%
• 25010090001Other salt, whether or not in aqueous solution or containing added anti-caking or free-flowing agents; sea water1%

2502 未焙燒硫化鐵礦

• 25020000009Iron pyrites, unroasted0%

2503 昇華、沈澱及膠狀硫磺以外之其他各種硫磺

• 25030000008Sulphur of all kinds, other than sublimed sulphur, precipitated sulphur and colloidal sulphur0%

2504 天然石墨

• 25041000005Natural graphite, in powder or in flakes0%
• 25049000008Other natural graphite0%

2505 各種天然砂（第二十六章之含金屬之砂除外），不論是否著色

• 25051000004Silica sands and quartz sands0%
• 25059000105Other natural sands, chloride containing more than 0.012%0%
• 25059000908Other natural sands of all kinds, whether or not coloured, other than metal-bearing sands of Chapter 260%

2506 石英（天然砂除外）；石英岩，不論是否用鋸或其他方法略加修整切割成長方型（包括方型）板塊

• 25061000003Quartz0%
• 25062000001Quartzite0%

2507 高嶺土及其他高嶺土質黏土，不論已否煅燒

• 25070010002Kaolin, whether or not calcined0%
• 25070020000Other kaolinic clays, whether or not calcined0%

2508 其他黏土（不包括第６８０６節之已膨脹黏土），紅柱石，藍晶石及矽線石，已否煅燒者在內；富鋁紅柱石；燒磨土（燒粉）及第納斯土

• 25081000001Bentonite (artificial as activated agents are classified in 3802)0%
• 25083000007Fire-clay0%
• 25084000005Other clays0%
• 25085000002Andalusite, kyanite and sillimanite0%
• 25086000000Mullite0%
• 25087000008Chamotte or dinas earths0%

2509 白堊

• 25090000002Chalk0%

2510 天然磷酸鈣、天然磷酸鋁鈣及磷酸鹽白堊

• 25101000007Natural calcium phosphates, natural aluminium calcium phosphates and phosphatic chalk (precious stones are classified in Chapter 71),unground0%
• 25102000005Natural calcium phosphates, natural aluminium calcium phosphates and phosphatic chalk, ground0%

2511 天然硫酸鋇（重晶石），天然碳酸鋇（毒重石），不論是否煅燒，但第２８１６節之氧化鋇不在內

• 25111000006Natural barium sulphate (Barytes)0%
• 25112000004Natural barium carbonate (Witherite)0%

2512 矽質化石粉（例如矽藻土）及類似矽質土，不論是否煅燒，其視比重不超過１者

• 25120010005Diatomite, calcined, of an apparent specific gravity of 1 or less0%
• 25120091007Crude earth0%
• 25120099009Other similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less0%

2513 浮石；金剛砂；天然鋼玉（石）；天然柘榴石及其他天然研磨料，已否經熱處理者均在內

• 25131000004Pumice stone0%
• 25132010000Emery, crude or in irregular pieces0%
• 25132020008Natural corundum, crude or in irregular pieces0%
• 25132030006Garnets (precious stones are classified in Chapter 71), crude or in irregular pieces0%
• 25132091002Other natural abrasives, crude or in irregular pieces0%
• 25132092001Other emery0%
• 25132093000Other natural corundum, natural garnet and other natural abrasives0%

2514 板岩，不論是否用鋸或其他方法略加修整切割成長方形（包括方形）板塊

• 25140011002Slate, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape, with a length, width and height of 1.5 m, 1 m, and 0.5 m or more, respectively.0%
• 25140019004Other slate, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape7.5%

2515 大理石、石灰華、石灰石及其他石灰質紀念碑用或建築用石，其視比重為２．５或以上者，以及雪花石膏，不論是否用鋸或其他方法略加修整切割成長方形（包括方形）板塊

• 25151110009Marble (apparent specific gravity of 2.5 or more), crude or roughly trimmed0%
• 25151120007Travertine (apparent specific gravity of 2.5 or more), crude or roughly trimmed0%
• 25151211007Marble dimension stone (apparent specific gravity of 2.5 or more), merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape, with a length, width and height of 1.5 m, 1 m and 0.5 m or more, respectively.0%
• 25151219009Other marble dimension stone (apparent specific gravity of 2.5 or more), merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape5%
• 25151221005Travertine dimension stone (apparent specific gravity of 2.5or more), merely cut, by sawing or otherwise, into blocks orslabs of a rectangular (including square) shape, with a length, width and height of 1.5 m, 1 m and 0.5 m or more, respectively.0%
• 25151229007Other travertine dimension stone (apparent specific gravity of 2.5 or more), merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape7.5%
• 25152010008Ecaussine and other calcareous monumental or building stone; alabaster, crude or trimmed0%
• 25152021005Ecaussine and other calcareous monumental or building stone;alabaster, merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape, with a length, width and height of 1.5 m, 1 m and 0.5 m or more, respectively.0%
• 25152029007Other ecaussine and other calcareous monumental or building stone; alabaster, merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape7.5%

2516 花崗岩、斑岩、玄武岩、砂岩及其他紀念碑或建築用石，不論是否用鋸或其他方法粗切成長方形（包括方形）之板塊

• 25161100000Granite, crude or roughly trimmed0%
• 25161210007Granite, merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape, with a length, width and height of 1.5 m, 1 m and 0.5 m or more, respectively.0%
• 25161290000Other granite, merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape6%
• 25162010007Sandstone, crude or roughly trimmed0%
• 25162021004Sandstone, merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape, with a length, width and height of 1.5 m, 1 m and 0.5 m or more, respectively.0%
• 25162029006Other sandstone, merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square)7.5%
• 25169010002Other monumental or building stone, crude or roughly trimmed0%
• 25169021009Other monumental or building stone, merely cut, by sawing orotherwise, into blocks or slabs of a rectangular (including square) shape, with a length, width and height of 1.5 m, 1 mand 0.5 m or more, respectively.0%
• 25169029001Other monumental or building stone, merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape7.5%

2517 通常作混凝土集料、築路、鐵道路基或其他路基用卵石、礫石、碎石，海濱沙石（巨礫）及火石（燧石），不論是否經加熱處理；礦渣、熔渣或類似工業廢料，不論是否與本節第一部分所列之材料混合；加瀝青舖路碎石；第２５１５或２５１６節所列各種石料之碎粒、碎屑及粉末，不論是否經加熱處理

• 25171010008Shingle and flint (including flint pebbles), whether or not heat-treated1%
• 25171090001Other pebbles, gravel, broken or crushed stone, of a kind commonly used for concrete aggregates, for road metalling or for railway or other ballast, whether or not heat-treated1%
• 25172000008Macadam of slag, dross or similar industrial waste, whether or not incorporating the materials cited in subheading 2517.101%
• 25173000006Tarred macadam1%
• 25174100003Granules, chippings and powder, of marble, whether or not heat-treated1%
• 25174900005Other granules, chippings and powder, of stones of heading 25.15 or 25.16, whether or not heat-treated0%

2518 白雲石，不論其是否煅燒或燒結，其包括用鋸或其他方法略加修整切割成長方形（包括方形）板或塊狀之白雲石

• 25181000009Dolomite not calcined0%
• 25182000007Calcined dolomite0%

2519 天然碳酸鎂（菱鎂礦）；熔結氧化鎂；僵燒（燒結）氧化鎂，不論燒結前是否加有少量其他氧化物；其他氧化鎂，不論是否純粹

• 25191000008Natural magnesium carbonate (Magnesite)0%
• 25199000001Fused magnesia; dead-burned (sintered) magnesia, whether or not containing small quantities of other oxides added before sintering; other magnesium oxide, whether or not pure0%

2520 石膏；無水石膏（硬石膏）；熟石膏（由焙製石膏或硫酸鈣組成），不論是否著色或加入少量速凝劑或緩凝劑

• 25201010003Gypsum, whether or not coloured0%
• 25201020001Anhydrite, whether or not coloured0%
• 25202000003Plasters0%

2521 助熔用石灰石；供製造石灰或水泥用石灰石及其他鈣質石

• 25210000006Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement0%

2522 生石灰、熟石灰及水硬性石灰（第２８２５節之氧化鈣及氫氧化鈣除外）

• 25221000003Quicklime0%
• 25222000001Slaked lime0%
• 25223000009Hydraulic lime0%

2523 卜特蘭水泥、鋁質水泥、熔渣水泥、過硫酸水泥及其他類似之水硬性水泥，不論是否著色或呈熔滓狀

• 25231010000Clinker, cement, white2.5%
• 25231090003Other cement clinkers0%
• 25232100009White cement, whether or not artificially coloured5%
• 25232910009Portland cement, white or coloured5%
• 25232990002Other portland cement0%
• 25233000008Aluminous cement0%
• 25239010003Hydraulic cements, white or coloured5%
• 25239090006Other hydraulic cements0%

2524 石棉

• 25241000001Of crocidolite2.5%
• 25249000004Other asbestos2.5%

2525 雲母，包括劈開片；廢雲母

• 25251000000Crude mica and mica rifted into sheets or splittings0%
• 25252000008Mica powder0%
• 25253000006Mica waste0%

2526 天然皂石，不論是否用鋸或其他方法粗加切成長方形（包括方形）之板或塊；滑石

• 25261000009Natural steatite and talc, not crushed, not powdered0%
• 25262000007Natural steatite and talc, crushed or powdered0%

2528 天然硼酸鹽及其精礦（不論是否煅燒），但自其天然鹽水中析離之硼酸鹽除外；以乾重量計算其硼酸（Ｈ３ＢＯ３）成分在８５％及以下之天然硼酸

• 25280000107Natural sodium borates and concentrates thereof (whether or not calcined)0%
• 25280000900Other natural borates and concentrates thereof (whether or not calcined), but not including borates separated from natural brine; natural boric acid containing not more than 85% of H3BO3 calculated on the dry weight0%

2529 長石；白榴石；霞石及霞石正長嚴；螢石

• 25291000006Felspar0%
• 25292100003Fluorspar, containing by weight 97% or less of calcium fluoride0%
• 25292200002Fluorspar, containing by weight more than 97% of calcium fluoride0%
• 25293000002Leucite; nepheline and nepheline syenite0%

2530 未列名礦物質

• 25301010001Vermiculite (exfoliated vermiculite is classified in heading 68.06), unexpanded0%
• 25301020009Perlite and chlorites, unexpanded0%
• 25302000001Kieserite, epsomite (natural magnesium sulphates)1%
• 25309010004Meerschaum or sepiolites (including agglomerated)2.5%
• 25309020002Natural arsenic sulphides (hartall orpiment and realgar) and amber (including agglomerated), crushed, for medicinal use2.5%
• 25309030000Jet2.5%
• 25309040008Micronised zircon flour0%
• 25309050005Amber, crushed (not for medicinal use)2.5%
• 25309060003Earth colours2.5%
• 25309071000Natural cryolite0%
• 25309072009Natural chiolite0%
• 25309080009Natural micaceous iron oxides2.5%
• 25309091006Medicinal substances, mineral, crude2.5%
• 25309099106Rare earth ores and concentrates1%
• 25309099204Unworked soils (including garden soils, wetland soils, bog soils, marl soils, alluvial soils, leaf mold soils, etc.) or worked soils specified in Subheading note 1 to this chapter (for example,akadama soils,etc.)1%
• 25309099909Other mineral substances,n.e.s.1%

What's the difference between Column 1, Column 2, and Column 3 tariff rates?

General Rule 2 of the Customs Import Tariff divides rates into 3 columns: Column 1 applies to imports from World Trade Organization members or from countries or regions with reciprocal treatment toward Taiwan; Column 2 applies only to “specific” imports in two situations: specific goods from certain least-developed or developing countries or regions, or specific goods from countries or regions that have signed a free trade agreement or economic cooperation agreement with Taiwan; goods that do not qualify for either of the first two columns are subject to Column 3. Where both Column 1 and Column 2 could apply, the lower rate is used. Mainland China is a World Trade Organization member and generally falls under Column 1; Column 2 applies to mainland China only for goods on the ECFA Early Harvest list.

The chapter and tariff-line pages on this site display Column 1 rates. Column 2 marks eligible countries in the tariff table using country codes, for example “Duty-free (PA,GT,NI,SV,HN,NZ,SG)”; the codes are only labels in the tariff table, and some of the underlying agreements have been suspended or terminated (e.g., Nicaragua, El Salvador, Honduras) — actual eligibility is subject to Customs Administration announcements. Miscellaneous items in postal parcels have separate rules: when the dutiable value exceeds the duty-free threshold, a 5% rate applies, except for tobacco, alcohol, and goods subject to a tariff rate quota; however, if a single item or items under the same tariff line total more than NT$2,000, they are not treated as miscellaneous items and are instead taxed at each tariff line's own rate (General Rule 5; Regulations Governing Customs Clearance of Postal Parcels, Articles 8 and 9). This 5% rule only covers postal parcels and passengers' goods; express shipments are calculated by each tariff line's rate.

Frequently Asked Questions

Where does this page's legal basis and data come from?

• Customs Act Article 3: Except as otherwise provided in the Customs Act, the levy of customs duty and the classification of imported and exported goods are governed by the Customs Import Tariff, which is separately enacted and promulgated through the legislative process.
• Customs Import Tariff (last amended, per the National Laws & Regulations Database, on January 28, ROC year 115 (2026)): General Rule 2 on the three rate columns, General Rule 5 on miscellaneous postal items, and Interpretation Rules 1 through 6.
• Customs Act Article 21 and the Regulations Governing the Advance Ruling on Tariff Classification of Imported Goods: applying for a binding tariff ruling before import.
• Value-added and Non-value-added Business Tax Act Article 20: business tax on imported goods is calculated on the dutiable value plus import duty; Article 41: business tax on imported goods is collected by Customs on the government's behalf.
• Regulations Governing Customs Clearance of Postal Parcels, Articles 7, 8, 9, 11, and 12: NT$2,000 duty exemption, full taxation when exceeded, the definition of miscellaneous items, combined calculation for parcels from the same sender to the same recipient arriving on the same date, and loss of the exemption after more than 6 uses in a half-year period.
• Ministry of Economic Affairs Announcement Jing-Mao-Zi No. 11104603570 dated August 19, ROC year 111 (2022): rules on permit-free import of small quantities of mainland China goods; Announcement Jing-Mao-Zi No. 111046035701 of the same date: excluded goods items.
• Ministry of Finance Announcement Tai-Cai-Guan-Zi No. 1061018778 dated September 7, ROC year 106 (2017): duty exemption for shipments with a dutiable value of NT$2,000 or less; Ministry of Finance Order Tai-Cai-Guan-Zi No. 1061011007 dated May 26, ROC year 106 (2017): exemption no longer applies after more than 6 duty-free releases in a half-year period.
• Customs Administration, Ministry of Finance, General Explanation of the Combined Volume of the Republic of China Customs Import Tariff and Classification of Import and Export Commodities, ROC year 112 (2023) edition: 21 sections, 97 chapters (Chapter 77 reserved), Chapter 98 added outside the HS structure, and the 8-digit tariff number plus 10-digit trade management and statistics classification, plus 1 check digit.
• International Trade Administration, Ministry of Economic Affairs, Table of Import Regulation Codes: a blank import regulation field means “permitted (no permit required)”.

Related reading