The domestic auto parts industry is characterized by close linkage to automakers, and parts suppliers' sales show a high correlation with Hyundai Motor Group, which produces about 80% of Korea's finished vehicles.
As of 2024, OEM sales accounted for 68.5% of parts suppliers' revenue, far exceeding the 26.7% export share, meaning industry performance is heavily tied to automakers' production strategies.
NICE Investors Service rated the 2026 earnings outlook for domestic auto parts makers at the lowest of three tiers—decline, maintain, or improve—citing that the burden from US tariff policy and the shift to electrification is expected to erode profits.
Hyundai Motor Group is operating roughly 700,000 units of existing US production capacity plus 300,000 units at the Hyundai Motor Group Metaplant America (HMGMA), with plans to add 200,000 units of capacity by 2028, and such expanded US localization could weigh on domestic parts suppliers.
Separately, the Korea Automobile Industries Cooperative Association projected total finished vehicle exports would reach 2.75 million units in 2026, up 1.1% year on year, though export volumes shipped from Korea remain under downward pressure as Hyundai Motor and Kia expand US local production and local parts procurement.
On the electrification front, despite a slowdown in EV growth, initial utilization rates at electrification facilities remain low, meaning individual suppliers' profitability is expected to diverge based on electrification readiness, overseas footprint, and utilization recovery.
The government plans to maintain more than KRW 15 trillion in policy financing in 2026 as part of a goal to convert 70% of internal-combustion parts makers into future-mobility parts suppliers, suggesting continued policy support during the transition.