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Who does Guam rely on?

The largest supplier of Guam in 2024 is South Korea, with 30.7% of what Guam buys. Its share was 17.5% in 2019 and 0% in 1995. 58 of the 90 products Guam buys for more than $1 million have a supplier selling more than 50% of what Guam buys of that product; in 23, more than 75%. In those products, purchases from each one’s dominant supplier add up to 21.9% of what Guam buys.

Summary

Largest supplier: South Korea
30.7%
Concentration (HHI)
1,807
Products with a supplier above 50%
58
Products with a supplier above 75%
23

Concentration index (HHI): 1,807 out of 10,000; equivalent to splitting purchases among 6 suppliers of the same size

Trend

Trend in shares

South Korea went from 0% to 30.7% of what Guam buys

Share (%)

  • South Korea 30.7%
  • Singapore 24.9%
  • Japan 12.2%
  • Indonesia 6.2%
  • Taiwan 4.1%

Source: CEPII BACI

Show the numbers
YearLargest supplierShare
1995——
1996——
1997——
1998——
1999——
2000Singapore38.1%
2001South Korea33%
2002Singapore33.6%
2003Singapore34.2%
2004Singapore36.2%
2005Singapore48%
2006Singapore46.5%
2007Singapore48.6%
2008Singapore42.9%
2009Singapore35.3%
2010Singapore35.3%
2011Singapore44.1%
2012Singapore39%
2013Singapore39.6%
2014Singapore31.2%
2015Singapore35.9%
2016Singapore32.4%
2017Malaysia33.5%
2018Singapore32.5%
2019Singapore32.5%
2020Singapore36.9%
2021Singapore51.2%
2022South Korea36.7%
2023Singapore36.9%
2024South Korea30.7%

Its suppliers

  1. South Korea$261 million · 30.7%
  2. Singapore$212 million · 24.9%
  3. Japan$104 million · 12.2%
  4. Indonesia$52 million · 6.2%
  5. Taiwan$35 million · 4.1%
  6. Hong Kong$28 million · 3.3%
  7. Malaysia$28 million · 3.2%
  8. Philippines$22 million · 2.6%
  9. Italy$15 million · 1.7%
  10. France$13 million · 1.5%

Some of these goods may have been produced in another country: countries record origin in different ways.

Products with a dominant supplier

Of the 90 products Guam buys for more than $1 million in 2024, these are the highest-value ones with a dominant supplier.

ProductSupplierShareSecondValue
CarsJapan76.4%over 75%South Korea · 15.5%$81 million
Soft drinksTaiwan64.4%South Korea · 13%$11 million
Cables and wireUnited Kingdom62.7%South Korea · 27.8%$10 million
Transformers and power suppliesSouth Korea76.4%over 75%Japan · 12.2%$9 million
Steel barsSouth Korea61.8%Japan · 33.1%$9 million
Other wristwatchesSwitzerland75.2%over 75%Hong Kong · 23.3%$8 million
CementTaiwan98.3%over 75%Singapore · 1.3%$8 million
Aluminum structuresTaiwan71.9%South Korea · 27.2%$6 million
JewelryHong Kong60.6%Italy · 29%$6 million
Elevators, escalators and conveyorsSouth Korea66.8%Australia · 23.8%$6 million
PastaSouth Korea53.2%Japan · 21.4%$5 million
Steel structuresSouth Korea80.1%over 75%Philippines · 6.8%$4 million
SpiritsSingapore75.3%over 75%Japan · 11.7%$4 million
Bulldozers and excavatorsSouth Korea61.8%Italy · 9.1%$4 million
Fresh milk and creamNew Zealand75.1%over 75%Australia · 23.1%$4 million
Steel angles and sectionsJapan91.6%over 75%Hong Kong · 6.9%$4 million
Cement and concrete articlesSouth Korea99.9%over 75%Hong Kong · 0.11%$4 million
PorkDenmark58.5%Hungary · 14.3%$3 million
Precious metal watchesSwitzerland91.3%over 75%Hong Kong · 8.5%$3 million
Men's suits and trousersHong Kong58%Thailand · 18.1%$3 million
Seamless steel pipesSouth Korea98.5%over 75%Sweden · 0.67%$3 million
Other industrial machinesGermany78.6%over 75%Singapore · 11.5%$3 million
Prepared meatAustralia52.1%Denmark · 18.6%$2 million
Fresh fishPhilippines89.2%over 75%Canada · 4%$2 million
Aircraft partsJapan79.6%over 75%South Korea · 6.7%$2 million

and 33 more

A product has a dominant supplier when a single country sells more than 50% of what is bought of it; we flag it separately above 75%.

Some of these goods may have been produced in another country: countries record origin in different ways.

Countries that sell more than 50% of some product; the darker, the higher the value of those products.

Selling: who it relies on

Largest customer: Taiwan
29%
Concentration (HHI)
1,824

Concentration index (HHI): 1,824 out of 10,000; equivalent to splitting sales among 5 customers of the same size

Trend in shares

Taiwan went from 0% to 29% of what Guam sells

Share (%)

  • Taiwan 29%
  • South Korea 26%
  • Hong Kong 11.5%
  • Italy 10.4%
  • Bulgaria 5.1%

Source: CEPII BACI

Show the numbers
YearLargest customerShare
1995——
1996——
1997——
1998——
1999——
2000Japan52.2%
2001Japan81%
2002Japan39.2%
2003Japan46.9%
2004Micronesia40.4%
2005Micronesia41.2%
2006Micronesia38.5%
2007Australia29%
2008Palau23.4%
2009Micronesia36.2%
2010Micronesia42.9%
2011Micronesia41.4%
2012Micronesia41.6%
2013Micronesia46.3%
2014Taiwan34.5%
2015Hong Kong32.4%
2016Palau33.3%
2017Palau23.1%
2018Palau24.9%
2019South Korea31.1%
2020Hong Kong68.8%
2021Taiwan27.8%
2022Singapore31.9%
2023Taiwan30.7%
2024Taiwan29%

5 of the 5 products Guam sells for more than $1 million have a customer buying more than 50% of what Guam sells of that product; in 2, more than 75%. In those products, sales to each one’s dominant customer add up to 38.9% of what Guam sells.

ProductCustomerShareSecondValue
Ferrous scrapTaiwan69.2%South Korea · 30.7%$5 million
Copper scrapTaiwan72.9%South Korea · 24.6%$4 million
Aluminum scrapSouth Korea52.6%Taiwan · 47.5%$2 million
Bags, suitcases and casesItaly75.2%over 75%Hong Kong · 21.3%$2 million
Refined petroleumSouth Korea99.9%over 75%Singapore · 0.08%$1 million

Concentration compared

The closest countries in the concentration ranking (HHI, highest first).

RankCountryHHI
63Sierra Leone1,887
64Afghanistan1,838
65Guam1,807
66Papua New Guinea1,801
67Kyrgyzstan1,784
68Antigua and Barbuda1,774

Sources and method

Sources and licenses

Methodology

The data come from CEPII BACI (Etalab 2.0 licence), which reconciles what the exporting and the importing country report, in current USD, FOB. Data up to 2024.

Dependence is the share of a country’s imports (or exports) that each partner accounts for. It does not measure whether a product has a substitute or how much it would cost to change supplier.

The concentration index (HHI) adds up the square of each partner’s share, in percent: it runs from 0 to 10,000. Its equivalent is 10,000 ÷ HHI, the number of partners of the same size that would give that value.

Products are HS4 headings of the 1992 nomenclature (some combine different goods), with a floor of $1 million per product and country.

The EU is the 27 current members in every year; the United Kingdom is outside the EU throughout the series.

Re-exports: countries that act as redistribution hubs carry their notice and the figures are not corrected.