Harmonized System
U.S. imports of Primary Cells & Batteries, Mercuric Oxide (HS 850630) totaled $23K in August 2026, imported from 1 country.
Primary Cells & Batteries, Mercuric Oxide imports of $23K in August 2026 ran 66% above the year-to-date monthly average of $14K.
Last updated: August 2026 dataMercuric oxide primary batteries occupy a narrow but technically specialized market segment, valued for their exceptionally flat discharge curve and stable voltage output in applications such as medical devices, military equipment, and precision instruments. The US schedule divides the heading by physical volume — batteries of 300 cm³ or less (8506301000) versus those exceeding 300 cm³ (8506305000) — a distinction that reflects the range from small button cells to larger industrial units. Japan leads US import supply, reflecting its established precision battery manufacturing sector. Importers should be aware that mercury-containing batteries face significant state-level restrictions and federal EPA reporting obligations under the Mercury-Containing and Rechargeable Battery Management Act, which affects both import planning and downstream distribution.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
1 import shipments a month
Yes. The Mercury-Containing and Rechargeable Battery Management Act (Battery Act) restricts the sale of certain mercury-containing batteries and imposes labeling and collection requirements. Additionally, EPA regulations under RCRA may apply to mercury-containing waste streams. Importers should confirm that the batteries comply with applicable federal and state mercury restrictions before entry, as some formats have been effectively phased out of the US consumer market.
Mercuric oxide cells remain in use for specialized military, aerospace, and medical applications where their flat discharge profile, high energy density, and stable voltage under varying temperatures are operationally critical and where no equivalent alternative chemistry has been qualified. These niche end-uses, rather than consumer electronics, account for most current import volume under this heading.
Subheading 7 of 7 in heading 8506
Subheading 850630 · $23K of $95.4M
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 |
|---|---|---|---|---|---|
| 8506301000 | Primary Batteries Lt= 300 Cm3, Mercuric Oxide | $23K | 40.20% | 100.00% | $9K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8506305000 | Primary Batteries Gt 300 Cm3, Mercuric Oxide | $6K |
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
$23KYoY · free account
Exports
$6KYoY · free account
Low of 5 reported months · imports
Low · free accountFewer than 6 of the last 12 months reported trade, or the latest month was under $500K; the trend chart is not shown for thin series.
Through August 2026 · imports 5 of 12 months reported, exports 11 of 12 months reported. Source: U.S. Census Bureau.
Imports · August 2026
origin
customs district
destination
entry
rate provision · imports
duty collected equals 40.20% of imports for consumption.
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