Korean weapons systems are 40-60% cheaper than their American counterparts.
The Korean K9 Thunder 155mm self-propelled howitzer costs $3.5 to $4 million per unit. For comparison, the American M109A7 Paladin costs around $8 million. The German PzH 2000 runs approximately $7 to $8 million.
The K239 Chunmoo Rocket Artillery (MLRS) system runs $2.0M/unit; M142 HIMARS runs $4.5M/unit. 155mm artillery shells are $2k/shell from Korea vs $3.5k/shell from the United States. Korean Cheongung II SAM interceptors cost ~$1.1M/unit, US Patriot missiles cost $4.0M/unit.
Buying South Korean weapons systems means you can procure twice as much at the same cost. It's a no brainer why Korea is winning military contracts.
[0] https://militarymachine.com/k9-thunder-howitzer-most-exporte...
As a military aviation enthusiast , I couldn't be happier that there seems to be a lot more diversity in military hardware developments, especially in close to state-of-the-art fighter jets, such as China's J-20/J-35, Turkey's KAAN, the GCAP/FCAS program, etc, with Dassault working on critical upgrades to current Rafales as well.
Global South countries have a lot more options for close to cutting edge military hardware than they had even a decade or two ago to close the gap with the West.
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What's interesting about the German/Korean bids to build subs for Canada is that both countries are offering package deals that include building other military vehicles and parts in Canada. This isn't just going to be a one-time purchase of military goods. The deal, whichever country gets it, will, ideally, kick-start long-term cooperation. The Canadian government seems to want what they used to have with the U.S., only with more reliable partners that won't regularly threaten their sovereignty.
This isn't so much a rise of SK's weapons business as it is the rise of a new, integrated military supply chain centred around NATO and close allies, but with a deliberate move away from U.S. suppliers.
I always thought of arms procurement as a tedious and slow process but the Polish/Korean agreements have turned that on its head in my eyes.
Simultaneously supplying new tanks, artillery, and munitions, while quickly standing up local factories to build them in Poland too is impressive, undoubtedly giving the Polish government some well needed breathing room.
Given that the technical package is included here, there must be some form of non-competition clause
For a random comparison, Poland has 593 and Germany has 134.
(source: https://www.globalfirepower.com/armor-self-propelled-guns-to... )
...that is, (depending on what you want) South Korea has proven experience in building a ton of military equipment on time. Also, due to the dreadful climate of Korean peninsula, if something works in Korea, it will work pretty much everywhere except for desert (and maybe the arctic).
The best endorsement for a weapons manufacturer is winning a war against a tough opponent.
Of late the Iran war showed that South Korea's anti-air as well as Biho class armor vehicles engaged drones well in UAE leading them to "we'll send you all we have now and you can pay us later" have won major trust from the region
Unlike China and Russias own weaponry which have largely been proven as duds, Korean weapons are giving American manufacturers a run for their money and if Korea can pull off the middle east region, it would not only secure oil directly while bypassing US dollar settlement, it could establish a sort of oil-for-korean-weapons and perhaps even soldiers in the near future, I think that this is the particular threat that America sees from its own ally and there will likely be some efforts to curb or limit South Korea as this article I think is starting to set the tone for.
Even if you are clueless about the international arms trade - South Korea has maintained a huge military for the past 70-ish years, as part of their endless cold war with North Korea. And South Korea has been really big on manufacturing and exporting all sorts of stuff for the past half-ish-century. Why the hell wouldn't they be selling the military things that they are building anyway, at scale, to any and every non-enemy with money to spend?