Which advantages over its rivals hold up, and why are they hard to copy?
HS Hyosung Advanced has maintained a two-decade hold on the world's top polyester tire cord position, an advantage reinforced by supplying all three major tire reinforcement materials rather than one. It produces steel, nylon and polyester, and runs carbon fiber and aramid ventures.
The company has maintained long-term materials supply contracts with approximately 20 global automakers, including Mercedes-Benz.
Which risks could break the thesis, and what would warn of them?
HS Hyosung Advanced's balance sheet carries the strain as weak tire cord market conditions and spending on new business investments push its debt-to-equity ratio again toward 400%. The ratio rose from 230.1% in 2024 to 372.3% last year. A Korea Investors Service senior analyst predicts downward pressure on its credit rating unless the debt burden eases meaningfully.
HS Hyosung Advanced withdrew from the sale of its steel cord business, recently valued at around 1 trillion won, and faces the start of construction on an anode material plant in Ulsan in the second half.
What does the product do for its buyer, and how is it delivered?
HS Hyosung Advanced supplies high-strength yarn and fabric as inputs that buyers convert into tires, seatbelts and airbags through a product line of tire cords, automotive seatbelt yarns and airbag fabrics. The company produces these technical yarns and fabrics from polyester, nylon, aramid and carbon fiber for automotive, construction, agricultural, defense, transport and sports uses.
HS Hyosung Advanced commercialized aramid yarn under the ALKEX® brand and brought high-strength and intermediate-modulus carbon fiber to market after developing it first in Korea. The company also makes automotive carpets at a factory in Qingdao, China.
