Measuring or checking instruments and machines: South Korea exports and imports
HS 9031 · 그 밖의 측정용이나 검사용 기기(이 류에 따로 분류되지 않은 것으로 한정한다)와 윤곽 투영기 · latest month: October 2026
In October 2026, South Korea exported $304.5 million of measuring or checking instruments and machines (HS 9031), down 15.1% from September 2026 and up 1.3% from October 2025.
Over the 12 months to October 2026, exports of measuring or checking instruments and machines (HS 9031) totalled $3.90 billion, up 3.3% from the 12 months before ($3.77 billion).
The largest destination over the 12 months to October 2026 was China ($1.51 billion, 38.7% of the total), followed by Vietnam and the United States.
That was 22.1% of South Korea's exports under HS chapter 90 (optical, measuring and medical instruments) over the same 12 months.
Imports in October 2026 were $509.6 million (up 71.6% from October 2025), leaving a deficit of $205.1 million for the month.
Official description of HS 9031: Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this Chapter; profile projectors.
Last 24 months
Subheadings under HS 9031
| Code | Product | Exports, 12 months | Share | vs 12 months before | October 2026 |
|---|---|---|---|---|---|
| 9031.10 | Machines for balancing mechanical parts | $4.8M | 0.1% | -40.1% | $1.5M |
| 9031.20 | Test benches | $19.4M | 0.5% | +12.8% | $4.8M |
| 9031.41 | For inspecting semiconductor wafers or devices (including integrated circuits) or for inspecting photomasks or reticles | $209.4M | 5.4% | +67.1% | $15.4M |
| 9031.41.2000 | For measuring surface particulate contamination on semiconductor wafers | $14.9M | 7.1% | +42.3% | $3.7M |
| 9031.41.9000 | Other | $194.5M | 92.9% | +69.4% | $11.7M |
| 9031.49 | Other | $1.93B | 49.5% | -11.9% | $143.3M |
| 9031.49.1000 | Optical surface testers | $15.7M | 0.8% | -48.0% | $574K |
| 9031.49.4010 | For the purpose of semiconductor manufacturing | $645K | 0.0% | +83.8% | $45K |
| 9031.49.4090 | Other | $2.1M | 0.1% | +45.4% | $122K |
| 9031.49.9000 | Other | $1.91B | 99.0% | -11.4% | $142.5M |
| 9031.80 | Other instruments, appliances and machines | $1.07B | 27.4% | +19.5% | $92.9M |
| 9031.80.1000 | Other instruments, appliances and machines | $0 | 0.0% | -100.0% | $0 |
| 9031.80.2000 | Load-cells | $6.5M | 0.6% | -24.5% | $596K |
| 9031.80.9010 | Equipment for testing the characteristics of internal combustion engines | $3.5M | 0.3% | +2.1% | $40K |
| 9031.80.9020 | Gear testing machines | $1.3M | 0.1% | +14.1% | $0 |
| 9031.80.9060 | Ultra-sonic thickness measuring instruments | $129K | 0.0% | -83.4% | $620 |
| 9031.80.9070 | Instruments for detecting faults, cracks or other defects | $17.0M | 1.6% | -25.6% | $424K |
| 9031.80.9080 | Dynamometers | $4.5M | 0.4% | +22.0% | $847K |
| 9031.80.9091 | For the purpose of semiconductor manufacturing | $22.8M | 2.1% | +17.9% | $2.3M |
| 9031.80.9099 | Other | $1.01B | 94.8% | +21.4% | $88.7M |
| 9031.90 | Parts and accessories | $665.2M | 17.1% | +23.6% | $46.7M |
| 9031.90.1010 | Of subheadings 9031.41 | $93.2M | 14.0% | -14.8% | $9.5M |
| 9031.90.1090 | Other | $100.3M | 15.1% | +8.1% | $7.1M |
| 9031.90.9000 | Other | $471.8M | 70.9% | +40.3% | $30.1M |
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. 190 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 | $1.51B | 38.7% | -17.3% | 1 | $108.2M |
| 2 | Vietnam | $581.2M | 14.9% | +31.8% | 2 | $36.3M |
| 3 | United States | $468.2M | 12.0% | +30.7% | 3 | $32.7M |
| 4 | India | $221.0M | 5.7% | -14.1% | 4 | $29.6M |
| 5 | Taiwan | $133.9M | 3.4% | +16.3% | 6 | $12.3M |
| 6 | Mexico | $115.0M | 2.9% | +40.4% | 7 | $6.9M |
| 7 | Japan | $104.9M | 2.7% | -14.4% | 5 | $7.7M |
| 8 | Thailand | $67.0M | 1.7% | +162.3% | 15 | $4.8M |
| 9 | Germany | $64.6M | 1.7% | +44.2% | 10 | $3.7M |
| 10 | Malaysia | $64.5M | 1.7% | +156.5% | 16 | $8.7M |
| 11 | Slovakia | $55.4M | 1.4% | +14.4% | 9 | $5.0M |
| 12 | Poland | $53.7M | 1.4% | -13.4% | 8 | $3.1M |
| 13 | Türkiye | $52.0M | 1.3% | +77.2% | 14 | $2.9M |
| 14 | Hong Kong | $46.3M | 1.2% | +13.2% | 11 | $3.8M |
| 15 | Hungary | $44.2M | 1.1% | +734.0% | 32 | $11.5M |
| 16 | Singapore | $40.7M | 1.0% | +18.0% | 12 | $2.0M |
| 17 | Brazil | $32.2M | 0.8% | +98.0% | 21 | $1.6M |
| 18 | Netherlands | $28.5M | 0.7% | -3.5% | 13 | $3.4M |
| 19 | Philippines | $27.1M | 0.7% | +111.4% | 22 | $2.6M |
| 20 | Czechia | $24.1M | 0.6% | +25.6% | 18 | $1.2M |
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 | $304.5M | +1.3% | 2,244 t | $135.73 | $509.6M | 2,677 t |
| September 2026 | $358.9M | -10.6% | 2,473 t | $145.12 | $446.0M | 2,395 t |
| August 2026 | $280.4M | -17.2% | 1,936 t | $144.81 | $407.9M | 2,116 t |
| July 2026 | $381.3M | +41.8% | 2,555 t | $149.26 | $437.9M | 2,514 t |
| June 2026 | $308.2M | +8.1% | 2,129 t | $144.75 | $452.7M | 2,291 t |
| May 2026 | $284.8M | -4.3% | 2,480 t | $114.82 | $376.0M | 1,963 t |
| April 2026 | $368.4M | +9.8% | 2,346 t | $156.99 | $592.3M | 2,544 t |
| March 2026 | $322.2M | +7.3% | 1,847 t | $174.45 | $552.1M | 2,243 t |
| February 2026 | $258.1M | -17.8% | 1,401 t | $184.26 | $375.9M | 1,634 t |
| January 2026 | $320.3M | +19.2% | 1,974 t | $162.32 | $477.6M | 1,833 t |
| December 2025 | $382.1M | +17.7% | 2,720 t | $140.49 | $493.5M | 2,009 t |
| November 2025 | $329.1M | -2.7% | 1,803 t | $182.57 | $344.2M | 1,647 t |
| October 2025 | $300.6M | -25.9% | 1,277 t | $235.37 | $297.0M | 1,722 t |
| September 2025 | $401.3M | -3.7% | 1,600 t | $250.79 | $461.9M | 2,519 t |
| August 2025 | $338.7M | -3.1% | 1,912 t | $177.09 | $377.2M | 1,698 t |
| July 2025 | $269.0M | -0.3% | 1,704 t | $157.84 | $401.4M | 1,889 t |
| June 2025 | $285.1M | +6.3% | 2,049 t | $139.11 | $437.4M | 1,965 t |
| May 2025 | $297.7M | -20.9% | 2,071 t | $143.74 | $440.4M | 2,067 t |
| April 2025 | $335.4M | -5.5% | 1,965 t | $170.70 | $386.3M | 1,657 t |
| March 2025 | $300.2M | -15.6% | 1,736 t | $172.94 | $449.0M | 2,034 t |
| February 2025 | $314.0M | +0.8% | 1,626 t | $193.10 | $423.4M | 1,682 t |
| January 2025 | $268.8M | -25.8% | 1,294 t | $207.81 | $357.4M | 1,639 t |
| December 2024 | $324.7M | -22.3% | 2,145 t | $151.35 | $495.3M | 2,002 t |
| November 2024 | $338.4M | -26.6% | 1,958 t | $172.84 | $325.4M | 1,854 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.