3810Pickling preparations for metal surfaces; fluxes and other auxiliary preparations for soldering, brazing or welding; soldering, brazing or welding powders and pastes consisting of metal and other materials; preparations of a kind used as cores or coatings for welding electrodes or rods:

金属表面処理用の調製浸せき剤、はんだ付け用、ろう付け用又は溶接用のフラックスその他の調製した助剤、はんだ付け用、ろう付け用又は溶接用の粉及びペーストで金属と他の材料とから成るもの並びに溶接用の電極又は溶接棒のしん又は被覆に使用する種類の調製品

HS code 3810 is a Heading (4-digit) classification number. In Japan's trade statistics (published by Ministry of Finance), it represents import/export items classified as “Pickling preparations for metal surfaces; fluxes and other auxiliary preparations for soldering, brazing or welding; soldering, brazing or welding powders and pastes consisting of metal and other materials; preparations of a kind used as cores or coatings for welding electrodes or rods:”. This code has 2 subcategories defined below it.

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Latest trade statistics

In May 2026, Japan's imports under HS code 3810 (Pickling preparations for metal surfaces; fluxes and other auxiliary preparations for soldering, brazing or welding; soldering, brazing or welding powders and pastes consisting of metal and other materials; preparations of a kind used as cores or coatings for welding electrodes or rods:) totaled ¥237M (YoY +0.4%), with a volume of 277,598 KG at about ¥855/KG. The top import sources are Germany (31.0%), United States of America (19.8%), Taiwan (17.5%). Exports totaled ¥6B (YoY +44.7%), with a volume of 3,368,954 KG at about ¥1,880/KG. The top export destinations are People's Republic of China (29.5%), Republic of Korea (16.0%), Taiwan (11.1%).

Export (May 2026)

¥6B

YoY: +44.7%

Qty: 3,368,954 KG

Unit price: ¥1,880/KG

Import (May 2026)

¥237M

YoY: +0.4%

Qty: 277,598 KG

Unit price: ¥855/KG

Top export destinations (2025)

#	Country	Value	Share	Qty	Unit price
1	People's Republic of China	¥17B	29.5%	12,117,387 KG	¥1,364/KG
2	Republic of Korea	¥9B	16.0%	8,011,725 KG	¥1,118/KG
3	Taiwan	¥6B	11.1%	1,829,618 KG	¥3,406/KG
4	Viet Nam	¥4B	6.3%	2,828,967 KG	¥1,254/KG
5	Hong Kong	¥3B	6.0%	1,671,386 KG	¥2,020/KG

Top import sources (2025)

#	Country	Value	Share	Qty	Unit price
1	Germany	¥834M	31.0%	1,105,945 KG	¥754/KG
2	United States of America	¥535M	19.8%	354,142 KG	¥1,509/KG
3	Taiwan	¥471M	17.5%	248,031 KG	¥1,901/KG
4	Republic of Korea	¥319M	11.8%	394,170 KG	¥809/KG
5	Singapore	¥150M	5.6%	44,300 KG	¥3,391/KG

Subcategories2items

Subheading (6-digit)

381010Pickling preparations for metal surfaces; soldering, brazing or welding powders and pastes consisting of metal and other materials

Subheading (6-digit)

381090Other

Related codes

Other codes in the same classification group

3801Artificial graphite; colloidal or semi-colloidal graphite; preparations based on graphite or other carbon in the form of pastes, blocks, plates or other semi-manufactures:3802Activated carbon; activated natural mineral products; animal black, including spent animal black:3805Gum, wood or sulphate turpentine and other terpenic oils produced by the distillation or other treatment of coniferous woods; crude dipentene; sulphite turpentine and other crude para-cymene; pine oil containing alpha-terpineol as the main constituent:3806Rosin and resin acids, and derivatives thereof; rosin spirit and rosin oils; run gums:3808Insecticides, rodenticides, fungicides, herbicides, anti-sprouting products and plant-growth regulators, disinfectants and similar products, put up in forms or packings for retail sale or as preparations or articles (for example, sulphur-treated bands, wicks and candles, and fly-papers):3809Finishing agents, dye carriers to accelerate the dyeing or fixing of dyestuffs and other products and preparations (for example, dressings and mordants), of a kind used in the textile, paper, leather or like industries, not elsewhere specified or included:3811Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils:3812Prepared rubber accelerators; compound plasticisers for rubber or plastics, not elsewhere specified or included; anti-oxidising preparations and other compound stabilisers for rubber or plastics:3815Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere specified or included:3822Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, other than those of heading 30.06; certified reference materials:3823Industrial monocarboxylic fatty acids; acid oils from refining; industrial fatty alcohols:3824Prepared binders for foundry moulds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included:3825Residual products of the chemical or allied industries, not elsewhere specified or included; municipal waste; sewage sludge; other wastes specified in Note 6 to this Chapter:3827Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included:

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