# HS4 2845 top trade corridors | Yugalinks

> Published by **Yugalinks**, global trade intelligence for growing businesses.
>
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Explore reported HS4 2845 trade corridors: leading exporter-to-importer routes, value, growth, market share, access, tariffs, and distance context.

Canonical: https://www.yugalinks.com/trade/sector/hs4/2845/corridors

## Page details

- Page type: HS4 subsector top trade corridors
- HS4: **2845 - Heavy water (deuterium oxide)**
- Parent sector: [HS2 28 overview](https://www.yugalinks.com/trade/sector/hs2/28)
- Coverage: 1995-2024
- Publisher: [Yugalinks](https://www.yugalinks.com/)

## Answer

Ireland to Canada leads the reported HS4 2845 routes with $1.1B in 2024 and +22,609.7% calculated three-year growth. The HS4 subsector recorded $2.8B in latest reported trade, with +58.6% calculated three-year growth.

## Explore Yugalinks

- [Open HS4 2845 in the workspace](https://www.yugalinks.com/app?hs=2845)
- [Read the HS4 overview](https://www.yugalinks.com/trade/sector/hs4/2845)
- [Read the parent HS2 overview](https://www.yugalinks.com/trade/sector/hs2/28)
- [Review data sources](https://www.yugalinks.com/data-sources)
- [Check data coverage](https://www.yugalinks.com/data-coverage)
- [Read the methodology](https://www.yugalinks.com/methodology)
- [Read Responsible AI principles](https://www.yugalinks.com/responsible-ai)

## Summary and indicators

| Measure | Value | Interpretation |
| --- | ---: | --- |
| Latest reported HS4 trade | $2.8B | Reported value in 2024 |
| Displayed corridor value | $2.4B | Sum of the routes shown |
| HS4 3-year CAGR | +58.6% | Calculated annualized change |
| HS4 5-year CAGR | +39.8% | Calculated annualized change |
| HS4 10-year CAGR | +26.6% | Calculated annualized change |
| Latest year-on-year change | +32.3% | Calculated change from the prior year |
| Reported trend | Rapid growth | Available HS4 trend label |
| Historical peak | $2.8B in 2024 | Reported-history comparison |
| Latest below peak | 0% | Calculated peak comparison |
| Exporter / importer HHI | 2,370.9 / 2,111 | Calculated concentration indicators |
| Trade volatility | 1.4 | Calculated variation in annual values |
| Active corridors / exporters / importers / HS6 | 1,430 / 94 / 167 / 2 | Latest available breadth |

## Growth leaders

- **Ireland -> Canada**: +22,609.7% calculated three-year CAGR, $1.1B latest reported value, 38.9% market share, trend Rapid growth.
- **Ireland -> China**: +2,751.5% calculated three-year CAGR, $19.3M latest reported value, 0.7% market share, trend Rapid growth.
- **China, Hong Kong Special Administrative Region -> China**: +2,089.2% calculated three-year CAGR, $139.2M latest reported value, 4.9% market share, trend Rapid growth.
- **Portugal -> Ireland**: +1,886.9% calculated three-year CAGR, $178.5M latest reported value, 6.3% market share, trend Rapid growth.
- **China -> Portugal**: +1,746.9% calculated three-year CAGR, $15.3M latest reported value, 0.5% market share, trend Rapid growth.

## Access and tariff context

FTA status, tariff fields, and distance are route context. Group averages below are calculated from the displayed routes and are not tariff recommendations.

| Access group | Reported route value | Routes | Average 3-year CAGR | Average applied tariff | Average tariff advantage |
| --- | ---: | ---: | ---: | ---: | ---: |
| FTA reported | $1.8B | 11 | +2,602.7% | 0.1% | +0.1 pp |
| No FTA reported | $544.5M | 14 | +443.7% | 0.1% | +0 pp |

- Lowest reported applied tariff route: **Portugal -> Ireland** at 0%.
- Largest reported tariff advantage route: **China, Hong Kong Special Administrative Region -> China** at +0.3 pp.

## Full corridor table

| Rank | Exporter | Importer | Latest trade | 3-year CAGR | 5-year CAGR | 10-year CAGR | Market share | FTA / access | Applied tariff | MFN tariff | Preferential tariff | Tariff advantage | Distance | Historical peak | Latest below peak | Years | Trend |
| ---: | --- | --- | ---: | ---: | ---: | ---: | ---: | --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: | --- |
| 1 | Ireland | Canada | $1.1B | +22,609.7% | +2,492.6% | +409.2% | 38.9% | FTA reported | 0.1% | 0.1% | 0% | +0.1 pp | 5,266 km | $1.1B (2024) | 0% | 6 | Rapid growth |
| 2 | Portugal | Ireland | $178.5M | +1,886.9% | +501% | +145.2% | 6.3% | FTA reported | 0% | 0% | 0% | +0 pp | 1,640 km | $178.5M (2024) | 0% | 4 | Rapid growth |
| 3 | Russia | China | $164.0M | +234.2% | +125% | +67.1% | 5.8% | No FTA reported | 0.2% | 0.2% | Not reported | Not reported | 6,831 km | $164.0M (2024) | 0% | 29 | Rapid growth |
| 4 | China | Republic of Korea | $143.0M | +86.3% | +107.2% | +99.4% | 5.1% | FTA reported | 0.1% | 0.1% | 0.1% | +0 pp | 867 km | $143.0M (2024) | 0% | 22 | Rapid growth |
| 5 | China, Hong Kong Special Administrative Region | China | $139.2M | +2,089.2% | +813% | +184.9% | 4.9% | FTA reported | 0.3% | 0.3% | 0% | +0.3 pp | 1,226 km | $139.2M (2024) | 0% | 15 | Rapid growth |
| 6 | USA, Puerto Rico and US Virgin Islands | China | $112.2M | +8.1% | +21.7% | +20.8% | 4% | No FTA reported | 0.3% | 0.3% | Not reported | Not reported | 11,883 km | $116.2M (2023) | 3.5% | 30 | Growing |
| 7 | Canada | USA, Puerto Rico and US Virgin Islands | $88.3M | +28.4% | +14.3% | +22.7% | 3.1% | FTA reported | 0% | 0% | 0% | +0 pp | 556 km | $88.3M (2024) | 0% | 30 | Rapid growth |
| 8 | China | China, Hong Kong Special Administrative Region | $52.8M | +954.1% | +171.5% | +80.4% | 1.9% | FTA reported | 0% | 0% | Not reported | Not reported | 1,226 km | $52.8M (2024) | 0% | 19 | Rapid growth |
| 9 | USA, Puerto Rico and US Virgin Islands | Germany | $51.0M | +28.8% | +25.2% | +16.8% | 1.8% | No FTA reported | 0.1% | 0.1% | Not reported | Not reported | 6,402 km | $51.0M (2024) | 0% | 30 | Rapid growth |
| 10 | USA, Puerto Rico and US Virgin Islands | Republic of Korea | $47.3M | +10% | +22.1% | +14.2% | 1.7% | FTA reported | 0.1% | 0.1% | 0% | +0.1 pp | 11,077 km | $48.4M (2023) | 2.2% | 30 | Growing |
| 11 | Republic of Korea | China | $47.3M | +38.5% | +61% | +104.1% | 1.7% | FTA reported | 0.3% | 0.3% | 0.1% | +0.2 pp | 867 km | $47.3M (2024) | 0% | 21 | Rapid growth |
| 12 | Russia | Netherlands | $38.3M | +526.6% | +200.7% | +85.8% | 1.4% | No FTA reported | 0% | 0% | 0% | +0 pp | 2,155 km | $38.3M (2024) | 0% | 24 | Rapid growth |
| 13 | Iran (Islamic Republic of) | China | $25.0M | +32.7% | +104.7% | Not reported | 0.9% | No FTA reported | 0.3% | 0.3% | Not reported | Not reported | 6,390 km | $25.0M (2024) | 0% | 8 | Rapid growth |
| 14 | India | USA, Puerto Rico and US Virgin Islands | $22.5M | +48% | +53% | +5.2% | 0.8% | No FTA reported | 0% | 0% | 0% | +0 pp | 11,771 km | $78.1M (2023) | 71.2% | 23 | Rapid growth |
| 15 | Ireland | China | $19.3M | +2,751.5% | +646.5% | +159.3% | 0.7% | No FTA reported | 0.3% | 0.3% | Not reported | Not reported | 9,368 km | $19.3M (2024) | 0% | 9 | Rapid growth |
| 16 | USA, Puerto Rico and US Virgin Islands | Japan | $17.9M | -3.3% | -1.3% | +3.3% | 0.6% | No FTA reported | 0% | 0% | 0% | +0 pp | 10,872 km | $19.8M (2021) | 9.5% | 30 | Declining |
| 17 | Russia | USA, Puerto Rico and US Virgin Islands | $17.8M | +22.3% | +7.5% | +6.3% | 0.6% | No FTA reported | 0% | 0% | 0% | +0 pp | 7,531 km | $20.5M (2013) | 13.1% | 30 | Rapid growth |
| 18 | Netherlands | USA, Puerto Rico and US Virgin Islands | $16.7M | +18% | +26.4% | +14.5% | 0.6% | No FTA reported | 0% | 0% | Not reported | Not reported | 5,877 km | $16.7M (2024) | 0% | 30 | Rapid growth |
| 19 | India | Republic of Korea | $16.5M | +672.8% | +409.6% | +160.7% | 0.6% | FTA reported | 0.1% | 0.1% | 0.2% | -0 pp | 4,692 km | $16.5M (2024) | 0% | 24 | Rapid growth |
| 20 | USA, Puerto Rico and US Virgin Islands | Spain | $16.1M | +88.1% | +86.3% | +46.7% | 0.6% | No FTA reported | 0.1% | 0.1% | Not reported | Not reported | 5,782 km | $16.1M (2024) | 0% | 30 | Rapid growth |
| 21 | China | Portugal | $15.3M | +1,746.9% | Not reported | Not reported | 0.5% | No FTA reported | 0% | 0.1% | 0% | +0 pp | 10,732 km | $15.3M (2024) | 0% | 4 | Rapid growth |
| 22 | Russia | Singapore | $14.5M | +723.3% | +146% | +135% | 0.5% | No FTA reported | 0% | 0% | Not reported | Not reported | 8,423 km | $14.5M (2024) | 0% | 19 | Rapid growth |
| 23 | Ireland | USA, Puerto Rico and US Virgin Islands | $13.9M | -12.9% | -15.2% | +95.3% | 0.5% | No FTA reported | 0% | 0% | Not reported | Not reported | 5,129 km | $98.0M (2023) | 85.9% | 17 | Rapid decline |
| 24 | Canada | Germany | $13.2M | +4.5% | +31.5% | +21.7% | 0.5% | FTA reported | 0.1% | 0.1% | 0% | +0.1 pp | 6,493 km | $13.2M (2024) | 0% | 30 | Growing |
| 25 | Germany | Canada | $11.8M | +249% | +130.9% | +51.8% | 0.4% | FTA reported | 0.1% | 0.1% | 0% | +0.1 pp | 6,493 km | $11.8M (2024) | 0% | 28 | Rapid growth |

## Definitions

Latest trade values are reported merchandise trade observations. CAGR, market share, HHI, volatility, and peak comparisons are calculated indicators over the available history. FTA, tariffs, and distance provide route context where available. Missing values remain unavailable and are not imputed or presented as forecasts.

## Data sources

- Primary trade series: OECD (2025), Balanced international merchandise trade statistics (BIMTS) - HS2017-6D, OECD Data Explorer (accessed on 2026-08-28). [OECD Data Explorer](https://data-explorer.oecd.org/) - [OECD Terms & Conditions](https://www.oecd.org/termsandconditions/)
- CEPII BACI bilateral trade flows (202601): [dataset page](https://www.cepii.fr/CEPII/en/bdd_modele/bdd_modele_item.asp?id=37) - [BACI documentation](https://www.cepii.fr/DATA_DOWNLOAD/baci/doc/baci_webpage.html) - [Etalab 2.0 Open Licence](https://www.etalab.gouv.fr/wp-content/uploads/2018/11/open-licence.pdf)

This page presents derived Yugalinks views of reported observations and calculated indicators.

## Continue your research

- [Open the HS4 workspace](https://www.yugalinks.com/app?hs=2845)
- [Read the HS4 overview](https://www.yugalinks.com/trade/sector/hs4/2845)
- [Read the HS2 overview](https://www.yugalinks.com/trade/sector/hs2/28)
- [Review data sources](https://www.yugalinks.com/data-sources)
- [Check data coverage](https://www.yugalinks.com/data-coverage)
- [Read methodology](https://www.yugalinks.com/methodology)
- [Read Responsible AI principles](https://www.yugalinks.com/responsible-ai)