Anti-knock preparations, oxidation inhibitors, gum inhibitors, etc.: South Korea exports and imports
HS 3811 · 안티녹(anti-knock)제ㆍ산화억제제ㆍ검화억제제(gum inhibitor)ㆍ점도향상제ㆍ부식방지제와 그 밖의 조제 첨가제[광물유(가솔린을 포함한다)용이나 광물유와 동일한 목적에 사용하는 그 밖의 액체용으로 한정한다] · latest month: October 2026
In October 2026, South Korea exported $15.2 million of anti-knock preparations, oxidation inhibitors, gum inhibitors, etc. (HS 3811), down 0.8% from September 2026 and up 56.3% from October 2025.
Over the 12 months to October 2026, exports of anti-knock preparations, oxidation inhibitors, gum inhibitors, etc. (HS 3811) totalled $169.9 million, up 6.2% from the 12 months before ($160.0 million).
The largest destination over the 12 months to October 2026 was China ($32.8 million, 19.3% of the total), followed by Singapore and the United States.
That was 2.1% of South Korea's exports under HS chapter 38 (miscellaneous chemical products) over the same 12 months.
Imports in October 2026 were $55.9 million (up 31.4% from October 2025), leaving a deficit of $40.7 million for the month.
Official description of HS 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.
Last 24 months
Subheadings under HS 3811
| Code | Product | Exports, 12 months | Share | vs 12 months before | October 2026 |
|---|---|---|---|---|---|
| 3811.11 | Based on lead compounds | $9,410 | 0.0% | – | $0 |
| 3811.19 | Other | $1.1M | 0.7% | +14.5% | $110K |
| 3811.21 | Containing petroleum oils or oils obtained from bituminous minerals | $68.4M | 40.3% | +34.6% | $8.4M |
| 3811.29 | Other | $95.6M | 56.3% | -7.0% | $6.2M |
| 3811.90 | Other | $4.8M | 2.8% | -12.5% | $579K |
Six-digit codes are international; the indented ten-digit codes are South Korea's own subdivision. These rows are world totals; "Share" is the share of the row above.
Top destinations
Export value over the 12 months to October 2026. 74 countries received this product from South Korea in the last 24 months; the table shows the largest 20.
| Rank | Country | Exports, 12 months | Share | vs 12 months before | Rank before | October 2026 |
|---|---|---|---|---|---|---|
| 1 | China | $32.8M | 19.3% | +6.1% | 2 | $2.3M |
| 2 | Singapore | $32.8M | 19.3% | +3.1% | 1 | $2.1M |
| 3 | United States | $30.2M | 17.8% | +12.9% | 4 | $3.2M |
| 4 | Italy | $23.8M | 14.0% | -21.5% | 3 | $0 |
| 5 | Belgium | $10.8M | 6.3% | +108.0% | 7 | $1.9M |
| 6 | India | $10.6M | 6.2% | +49.9% | 6 | $1.7M |
| 7 | Vietnam | $6.8M | 4.0% | -5.1% | 5 | $919K |
| 8 | Australia | $3.3M | 1.9% | +58.2% | 9 | $204K |
| 9 | Thailand | $3.0M | 1.8% | +85.4% | 13 | $21K |
| 10 | Indonesia | $2.9M | 1.7% | +43.3% | 10 | $314K |
| 11 | Japan | $2.6M | 1.5% | -16.0% | 8 | $233K |
| 12 | Pakistan | $2.6M | 1.5% | +30.4% | 11 | $154K |
| 13 | Hong Kong | $1.8M | 1.1% | +231.1% | 20 | $1.4M |
| 14 | Saudi Arabia | $1.0M | 0.6% | -42.0% | 12 | $267K |
| 15 | Malaysia | $929K | 0.5% | -14.5% | 14 | $181K |
| 16 | Taiwan | $608K | 0.4% | -27.6% | 17 | $76K |
| 17 | Philippines | $543K | 0.3% | +49.4% | 22 | $1,152 |
| 18 | United Kingdom | $404K | 0.2% | -60.3% | 15 | $0 |
| 19 | Canada | $358K | 0.2% | +60.9% | 26 | $80K |
| 20 | South Africa | $323K | 0.2% | +25.3% | 24 | $44K |
Countries are linked when exports of this product to them reached $5,000,000 over 24 months.
Monthly figures
| Month | Exports | vs year earlier | Export weight | Export $/kg | Imports | Import weight |
|---|---|---|---|---|---|---|
| October 2026 | $15.2M | +56.3% | 4,886 t | $3.12 | $55.9M | 11,374 t |
| September 2026 | $15.3M | +15.0% | 5,910 t | $2.60 | $49.4M | 9,238 t |
| August 2026 | $15.9M | +24.7% | 5,897 t | $2.70 | $45.9M | 8,872 t |
| July 2026 | $16.4M | +1.2% | 6,659 t | $2.47 | $49.3M | 9,142 t |
| June 2026 | $14.9M | -7.2% | 6,208 t | $2.39 | $44.3M | 8,985 t |
| May 2026 | $14.5M | +1.4% | 5,642 t | $2.57 | $33.4M | 6,987 t |
| April 2026 | $17.0M | +21.5% | 6,764 t | $2.51 | $44.7M | 9,251 t |
| March 2026 | $13.6M | -0.1% | 5,932 t | $2.29 | $46.7M | 10,227 t |
| February 2026 | $10.2M | -32.2% | 4,667 t | $2.18 | $42.7M | 9,345 t |
| January 2026 | $13.9M | +17.9% | 6,046 t | $2.30 | $42.9M | 9,632 t |
| December 2025 | $13.0M | +10.1% | 5,653 t | $2.31 | $47.5M | 10,757 t |
| November 2025 | $9.9M | -12.8% | 4,245 t | $2.34 | $40.1M | 8,452 t |
| October 2025 | $9.7M | -10.1% | 4,037 t | $2.41 | $42.5M | 9,083 t |
| September 2025 | $13.3M | +15.4% | 5,246 t | $2.54 | $45.4M | 10,104 t |
| August 2025 | $12.8M | +8.5% | 5,033 t | $2.54 | $40.7M | 9,284 t |
| July 2025 | $16.2M | -0.7% | 6,351 t | $2.56 | $47.6M | 10,165 t |
| June 2025 | $16.0M | +8.2% | 6,346 t | $2.52 | $46.8M | 9,625 t |
| May 2025 | $14.3M | -2.1% | 5,583 t | $2.56 | $44.6M | 9,805 t |
| April 2025 | $14.0M | -17.9% | 5,670 t | $2.47 | $40.3M | 8,677 t |
| March 2025 | $13.6M | -9.4% | 5,407 t | $2.51 | $35.3M | 7,903 t |
| February 2025 | $15.0M | +8.9% | 5,972 t | $2.52 | $39.0M | 8,378 t |
| January 2025 | $11.8M | -28.3% | 4,545 t | $2.60 | $46.4M | 10,336 t |
| December 2024 | $11.8M | +6.0% | 4,746 t | $2.50 | $51.3M | 10,850 t |
| November 2024 | $11.4M | -24.7% | 4,373 t | $2.60 | $40.0M | 8,664 t |
Exports FOB, imports CIF, US dollars. Weight is net weight. "vs year earlier" compares export value with the same month one year before and is left blank when that month was under $10,000. Source: Korea Customs Service, via data.go.kr.