Invest1 publisher3 min readPublished
Lacking a defense pact with Washington, Korea faces 50% bid penalty in US procurement market
South Korea's arms makers still face a 50% Pentagon bid penalty despite Seoul's $350 billion US pledge, in a $340 billion market where they hold 0.3%. The investment can support Korean production in America, but without a reciprocal procurement pact little of the benefit reaches the smaller Korean suppliers behind it.
The Investor · Invest desk

What happened
- The Pentagon has Reciprocal Defense Procurement Agreements with 28 countries, including Britain, Australia, Germany and Japan, and South Korea is the only major ally without one.
- Seoul and Washington agreed on April 12, 2024 to pursue such a pact, but a task force led by Korea's vice defense minister fell apart after the Dec. 3 martial law declaration.
- To count as US-made, a product must draw more than 65% of its cost from US and qualifying-country components, a bar that rises to 75% in 2029.
- Korean companies won 0.23% of US defense procurement contracts in 2025, a share the Seoul Economic Daily attributes to the bid penalty.
Compiled by The InvestorSomething wrong?How this is made
Why it matters
- cost Korea's small and midsize suppliers carry the bill: the Seoul Economic Daily says they must finance US plants of their own to keep selling to Korean primes there, or lose that work to American suppliers.
- constraint A Korean prime building in America can count Japanese or German parts as qualifying content while it has to cap purchases from its own Korean supply base.
- decision Seoul plans to commit the $350 billion while the pact has yet to come up in defense-minister or summit talks, so the money goes in on today's procurement terms.
The 50% penalty is easiest to price as a discount. Evaluators score a Korean bid as if it cost one and a half times its price, so for every $100 a qualifying rival asks, the Korean contractor has to come in near $67 just to tie, a third cheaper before any profit is counted [2]. According to the Seoul Economic Daily, the penalty applies to some contracts where exemptions under existing trade agreements do not apply [12]. The paper does not say what share of the market those contracts make up.
In dollars, Korea's 0.3% of this year's roughly $340 billion is about $1 billion of Pentagon business [1]. The pledge is about the size of a full year of US defense procurement [3], though it came out of tariff negotiations [4], and its value to arms makers is a hope the government has attached to it [5]. The market is also growing. Forecasts cited by the paper put it near 580 trillion won by 2031, about 21% above this year's 480 trillion won [2][4].
The content rule decides who gets paid. A Korean prime producing in the United States must keep Korean parts at 25% or less of each project by 2029 to escape the penalty, according to the paper [15]. The allowance for that content falls 10 points from today's 35%, a cut of about 29% [6]. The pledge can pay for Korean production in America, but more than three-quarters of each project's component cost will have to go to American or qualifying-country suppliers [14].
This could play out three ways other than the paper's account. Trade-agreement exemptions may already cover the contracts Korean firms most want, since the penalty applies only where they do not [12]. Korean primes could win US work anyway, using plants the pledge helps fund and supply chains built mostly from American parts [15]. Or Washington could sign with Seoul after all, though the paper calls that unlikely under an administration that has toughened Buy American Act requirements [10].
I think the paper is right about Korea's supply base and too gloomy about the primes. The cap limits Korean parts, not Korean ownership, so a large contractor with a US plant can still win and book the revenue [15]. The counter-case is that revenue earned at a US plant does little for the Korean economy that put up the money, and on that narrower point the paper is persuasive. If Korean firms' share of Pentagon contracts climbs well above 2025's 0.23% while Seoul still lacks an agreement, the thesis is wrong [13].
When the two governments agreed to pursue the pact, the Ministry of National Defense said they had agreed to the move "to enhance supply chain resilience and deepen defense cooperation" [8].
What to watch
- The first US award under the MASGA naval shipbuilding program to a Korean yard, and how much of that ship's cost is sourced from Korea.
- How many Korean small and midsize defense suppliers have opened US plants by 2029, when the US-made content threshold rises to 75%.