U.S. imports of Industrial Machinery & Equipment for Temperature-Change Material Treatment (NESOI) (HS 841989) totaled $374.7M in August 2026, imported from 67 countries.
Importers of Industrial Machinery & Equipment for Temperature-Change Material Treatment (NESOI) paid $35.7M in duties in August 2026, an average duty rate of 9.61% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Industrial Machinery & Equipment for Temperature-Change Material Treatment (NESOI) imports of $374.7M in August 2026 ran 17% above the year-to-date monthly average of $319.0M.
Last updated: August 2026 dataSpanning a wide range of process industries, this heading covers industrial and laboratory equipment that treats materials through heating, cooling, or other temperature change — excluding domestic appliances and the food/hot-drink machinery of heading 841981. Taiwan and Mexico are the leading US import sources, with China, Canada, and Germany also significant. The US schedule draws important distinctions by end-use: dedicated lines exist for equipment cooling food and beverages (8419899520), general cooling equipment (8419899540), food and beverage temperature treatment (8419899560), and rubber and plastics processing (8419899580), with a residual NESOI line (8419899585) for other applications. Chinese-origin goods may carry Section 301 tariff exposure, and importers should verify classification carefully given the heading's broad scope.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
4.0K import shipments a month
Line 8419899520 is specifically for equipment designed to cool food and beverages, while 8419899560 covers broader temperature-change treatment of food and beverages not limited to cooling — such as pasteurization or heat treatment systems. The distinction turns on whether the equipment's primary designed function is cooling versus a broader thermal process, and misclassification between these lines is a common audit finding.
Taiwan has a well-developed industrial machinery manufacturing base, particularly for process equipment used in electronics, food processing, and plastics industries — all of which rely heavily on temperature-control machinery. Its competitive pricing and established export infrastructure make it a primary source for US importers of this equipment category.
Subheading 1 of 14 in heading 8419
Subheading 841989 · $374.7M of $1.2B
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HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 8419899590 | Ind Mac, Plant, Equip, Treat of Materl, Temp Chg, NESOI | $195.8M | 8.72% | 81.98% | $17.1M |
| 8419899540 | Ind Mach, Plant Equip Design for Cooling, NESOI | $166.8M | 10.81% | 75.38% | $18.0M |
| 8419899520 | Ind Mach, Plant or Equip Des for Cool Food, Beverag | $3.9M | 2.99% | 96.28% | $118K |
| 8419899550 | Ind Mac, Plant, Equip, Treat Food, Bev, Temp Chg, NESOI | $2.1M | 10.15% | 91.27% | $210K |
| 8419899570 | Ind Mac, Plant, Equip, Treat Rub, Plast, Temp Chg, Nes | $1.9M | 10.24% | 81.71% | $195K |
| 8419891000 | Ind Mac Plt, Equip, Make Pulp, Paper, Paperboard, NESOI | $1.2M | 9.02% | 68.48% | $112K |
| 8419896000 | Ind Mac, Plant, Equip, Treat of Materl, Temp Chg, Other | $59K | 22.24% | 100.00% | $13K |
| 8419899510 | Heatng Mantles, Drum Htrs, Heating Blts Heatng Cont | $36K | 12.56% | 100.00% | $4K |
| 8419899560 | Ind Mac, Plant, Equip, Treat Food, Bev, Temp Chg, NESOI | — | -- | -- | -- |
| 8419899580 | Ind Mac, Plant, Equip, Treat Rub, Plast, Temp Chg, Nes | — | -- | -- | -- |
| 8419899585 | Ind Mac, Plant, Equip, Treat of Materl, Temp Chg, NESOI | — | -- | -- | -- |
Ind Mac, Plant, Equip, Treat of Materl, Temp Chg, NESOI
Ind Mac, Plant, Equip, Treat Food, Bev, Temp Chg, NESOI
Ind Mac, Plant, Equip, Treat Rub, Plast, Temp Chg, Nes
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$374.7MYoY · free account
Exports
$91.3MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $3.7B of Industrial Machinery & Equipment for Temperature-Change Material Treatment (NESOI) and exported $1.2B.
Through August 2026. Source: U.S. Census Bureau.
Imports · August 2026
origin
Taiwan and Mexico together supply 45% of it. China pays 38.8% duty; Slovenia 0.0%.
customs district
destination
entry
rate provision · imports
20.7% enters free of duty; duty collected equals 9.61% of imports for consumption.