HS 28.05 — Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury

Chapter 28 Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes. · SECTION VI PRODUCTS OF THE CHEMICAL OR ALLIED INDUSTRIES · Edition 2026-04-01 (effective 1 April 2026)

Import duty rates for heading 28.05 from Japan's official tariff schedule. Which column applies? Most imports take the WTO rate (or General/Temporary where shown, if lower); GSP/LDC are preferential rates for developing countries; EPA rates (inside each row) apply when your goods qualify under that agreement's rules of origin. Rows without a percentage rate (specific, compound, seasonal or quota rates) need case-by-case review. Use the Calc button for the landed-cost estimate.

Code	Description	General	WTO	GSP	Unit	Law
28.05	Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury
	Alkali or alkaline-earth metals :
2805.11 000	Sodium EPA rates (21) Singapore: Free · Mexico: Free · Malaysia: Free · Chile: Free · Thailand: Free · Indonesia: Free · Brunei: Free · ASEAN: Free · Philippines: Free · Switzerland: Free · Viet Nam: Free · India: Free · Peru: Free · Australia: Free · Mongolia: Free · CPTPP: Free · EU: Free · UK: Free · ASEAN/Australia/New Zealand(RCEP): Free · China / (RCEP): Free · Korea / (RCEP): Free	4.6%	3.9%	Free	KG	PD
2805.12 000	Calcium EPA rates (21) Singapore: Free · Mexico: Free · Malaysia: Free · Chile: Free · Thailand: Free · Indonesia: Free · Brunei: Free · ASEAN: Free · Philippines: Free · Switzerland: Free · Viet Nam: Free · India: Free · Peru: Free · Australia: Free · Mongolia: Free · CPTPP: Free · EU: Free · UK: Free · ASEAN/Australia/New Zealand(RCEP): Free · China / (RCEP): Free · Korea / (RCEP): Free	Free	(Free)		KG	PD
2805.19 000	Other EPA rates (21) Singapore: Free · Mexico: Free · Malaysia: Free · Chile: Free · Thailand: Free · Indonesia: Free · Brunei: Free · ASEAN: Free · Philippines: Free · Switzerland: Free · Viet Nam: Free · India: Free · Peru: Free · Australia: Free · Mongolia: Free · CPTPP: Free · EU: Free · UK: Free · ASEAN/Australia/New Zealand(RCEP): Free · China / (RCEP): Free · Korea / (RCEP): Free	Free	(Free)		KG	PD
2805.30 000	Rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed EPA rates (21) Singapore: Free · Mexico: Free · Malaysia: Free · Chile: Free · Thailand: Free · Indonesia: Free · Brunei: Free · ASEAN: Free · Philippines: Free · Switzerland: Free · Viet Nam: Free · India: Free · Peru: Free · Australia: Free · Mongolia: Free · CPTPP: Free · EU: Free · UK: Free · ASEAN/Australia/New Zealand(RCEP): Free · China / (RCEP): Free · Korea / (RCEP): Free	Free	(3.3%)		KG	PD
2805.40 000	Mercury EPA rates (21) Singapore: Free · Mexico: Free · Malaysia: Free · Chile: Free · Thailand: Free · Indonesia: Free · Brunei: Free · ASEAN: Free · Philippines: Free · Switzerland: Free · Viet Nam: Free · India: Free · Peru: Free · Australia: Free · Mongolia: Free · CPTPP: Free · EU: Free · UK: Free · ASEAN/Australia/New Zealand(RCEP): Free · China / (RCEP): Free · Korea / (RCEP): Free	6.4%	5.4%	Free	KG	IL / PD
	II.- INORGANIC ACIDS AND INORGANIC OXYGEN COMPOUNDS OF NON-METALS

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Source & disclaimer. Rates from Japan Customs, tariff schedule 2026-04-01 (Government Standard Terms of Use). Reference only — classification and the applicable rate are decided by customs at declaration; confirm with a licensed customs broker. Consumption tax (10%) applies on top of duty. See the import taxes guide and the customs FX rates.