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Sample report · page 2
What is HS code 3811.21?
HS 3811.21 covers lubricant additives, petroleum oil base, in heading 3811, chapter 38 of Vietnam's tariff.
2 eight-digit lines:Put up for retail sale·Other
Tariff description and 8-digit lines
Chapter 38
Miscellaneous chemical products
Heading 3811
Anti-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
Subheading 3811.21
Additives for lubricating oils: containing petroleum oils or oils obtained from bituminous minerals
Vietnam's import and export nomenclature, Circular 31/2022/TT-BTC.
Vietnam's 8-digit tariff lines (2)
3811.21.10Put up for retail sale
3811.21.90Other
A report covers the 6-digit code, every 8-digit line under it included.
Vietnam's chemical products exports in 2025 were 46% above 2021
Value, bn USD; change on the year before
20212.00
20222.51+25.8%
20232.43−3.3%
20242.71+11.6%
20252.91+7.5%
Whole chemical products sector, not code 3811.21 alone. Source: General Statistics Office of Vietnam; 2025 preliminary, updated 25/03/2026.
Where export decisions go wrong
85%
of Vietnamese exporters are not ready for the US market
A good product is not enough: market research, sales channels and buyer knowledge are missing.
77.3%
name market research as their biggest gap
Who buys, at what price, how often: unknown before the first quote.
76%
lack a marketing strategy and sales channels
New buyers come mostly from fairs and B2B platforms, at high cost and low reply rates.
Source: survey of Vietnamese exporters to the US, VISIA and Ready2US, 09/2026.
The cost of exporting without market data
Quotes off the market level: orders lost when high, margin lost when low.
Fair and platform budgets spent before knowing which markets buy this code.
Buyers already shopping in Vietnam go to competitors who reached them first.
Target markets picked from news and hearsay, not from shipment records.
Excel files bought from Zalo groups, with no stated period.
Report HS 3811.21
A product’s whole market in one report. One 6-digit code, export or import, for a period of 1 to 12 months.