Poongsan runs two businesses in parallel: copper and copper-alloy fabrication, and ammunition manufacturing. Fabrication is the revenue engine; on a parent basis for 2025, fabrication revenue was reported at KRW 2,662.3bn versus KRW 1,186.8bn for the defense unit (Bizwatch, April 2026).
Defense accounted for 30.8% of total revenue in 2025 (KRW 1,186.8bn) but is estimated to contribute 60-70% of profit (Bloter, April 2026).
The company is Korea's only integrated ammunition producer, making every type of round used by the Korean military from 5.56mm rifle ammunition to 155mm artillery shells; its share is undisclosed for security reasons but is seen by the industry as close to 100%.
The defense unit covers not only finished rounds but also propellants, materials and components, precision forgings, and explosive filling and assembly within one production chain.
Customers are the government and military at home and, for exports, markets such as Poland, the Middle East and Southeast Asia, where ammunition is packaged with platform exports such as the K9 self-propelled howitzer and K2 tank and sold across the full operating life of those systems.
On the commercial side, the company supplies its own brand of sporting ammunition to North America and other markets through its U.S. subsidiary PMC.
The fabrication unit spans sheet, rod and wire, and coin blanks, and the company is expanding copper products for eco-friendly vehicles, AI and data centers and energy storage systems while lifting exports of high-value automotive and electronics products.
Because both businesses share copper as their base material, raw-material prices move revenue and margins simultaneously, which is the defining feature of its competitive position.