South Korea Die Casting - Market Share Analysis, Industry Trends & Statistics, Growth Forecasts (2026-2031)

The South Korea die casting market size was valued at USD 2.56 billion in 2025 and is estimated to grow from USD 2.67 billion in 2026 to reach USD 3.31 billion by 2031, at a CAGR of 4.42% during the forecast period (2026-2031). This report is segmented by Application (Automotive, Electronics and Communication, Consumer Goods, Packaging and Others), Process (High-Pressure, Low-Pressure, Vacuum, Squeeze, Gravity and Others), Raw Material (Aluminum and Others), Tonnage Class (Up To 400 Ton, 401-800 Ton, 801-2, 000 Ton, and More), and Province. Market Forecasts are Provided in Value (USD).

South Korea Die Casting Market Trends and Insights

EV-led Lightweighting Boom

In April 2024, Hyundai Motor Company announced plans for a KRW 1 trillion hypercasting plant in Ulsan. The facility, with a 9,000-ton press, aims to produce 200,000 EV structural parts annually by 2026. This marks a significant shift in South Korea's supplier dynamics and the first major adoption of gigacasting outside Tesla. Gigacasting consolidates up to 70 components into a single aluminum extrusion, reducing assembly time by 40%, vehicle weight by 10%, and extending EV range by 6 to 8%. Kia is also investing KRW 2.2 trillion in the Hwaseong EVO Plant, sourcing die-cast subframes and battery trays from suppliers in Gyeonggi-do to create a localized gigacasting hub. Demand for ultra-large-tonnage machines over 2,000 tons is projected to grow at a 4.47% CAGR through 2031, alongside increased adoption of vacuum die casting processes that achieve porosity levels below 0.1%. Suppliers unable to invest in 6,000-ton presses or master vacuum-assisted solidification risk being confined to legacy powertrain components as OEMs shift to skateboard platforms.

Surge in Complex Electronic Housings

The USD 471 billion semiconductor mega-cluster in Gyeonggi-do will house 16 fabs producing 7.7 million wafers per month by 2030. Fab equipment requires hermetic chambers, fluid manifolds, and heat spreaders machined to single-digit-micron tolerances, a task now migrating to vacuum die-casting lines outfitted with melt-quality sensors. Samsung and SK Hynix demand 50% local sourcing of mechanical parts to derisk their supply chains, translating into multi-year blanket contracts for domestic foundries. AI accelerator chips use dense packaging that generates heat flux exceeding 1,000 W/cm², compelling adopters to specify thin-walled aluminum housings with integrated vapor chambers. These technical stipulations elevate average selling prices and lengthen tooling lifecycles, adding profitable backlog for specialists in the South Korean die casting market.

Raw-Material Price Volatility

As of Q1 2026, aluminum prices are around USD 2,850 per ton and zinc near USD 3,100 per ton. Quarterly price swings of 15-20%, driven by Chinese production cuts and LME inventory changes, are squeezing die caster margins, especially for smaller foundries without hedging tools or long-term contracts. South Korea imports 95% of its aluminum and 80% of its zinc, exposing domestic foundries to freight rate volatility and geopolitical disruptions. The 2025 Red Sea shipping crisis added USD 200-300 per ton in logistics costs for Middle Eastern aluminum, further eroding the already tight 4.7% operating profit margins. OEMs are demanding fixed-price contracts with quarterly adjustments, shifting commodity risk to Tier-1 die casters, who must absorb losses or pass costs to sub-tier suppliers. This is driving vertical integration, with larger players acquiring scrap-remelting capacities to stabilize input costs. Capital-rich incumbents like Samkee (KRW 570.5 billion in turnover in FY25) are investing in closed-loop recycling to reduce reliance on virgin aluminum, while smaller foundries consolidate or exit.

Other drivers and restraints analyzed in the detailed report include:

• Design-Flexibility Demands in Auto Body Panels
• Government Smart-Foundry Subsidies
• Advanced-Skilled Labour Shortage

Segment Analysis

Automotive applications accounted for 67.17% of the market in 2025, anchored by Hyundai Motor Group and Kia's combined domestic production of approximately 3.5 million vehicles annually. Yet, the electronics and communication segment is forecast to grow at 4.61% CAGR through 2031, outpacing the market average as Samsung and LG localize semiconductor packaging and 5G infrastructure production. The automotive segment's maturity is evident in slowing volume growth - South Korea's passenger vehicle output has plateaued near 3.8 million units since 2019 - but a compositional shift toward EVs is driving higher die casting intensity per vehicle; a battery-electric platform requires 40-50 kg of die-cast aluminum for motor housings, battery trays, and thermal management systems versus 25-30 kg for internal combustion powertrains.

Hyundai Mobis’s KRW 90 billion EV module complex in Ulsan will consume up to 20,000 tons of aluminum annually once fully operational in 2026, translating into steady batch orders for local die casters. Electronics assemblers specify tighter porosity ceilings to protect high-frequency signal integrity, a shift that is driving upgrades to vacuum casting equipment. Across consumer goods, demand for decorative finishes drives investment in duplex nickel-chrome plating lines integrated with die-casting cells, demonstrating how downstream integration enhances margins. These diverse end-uses cushion cyclical swings within the portfolio, supporting sustained expansion of the South Korea die casting market.

In 2025, high-pressure die casting accounted for 52.28% of the market, serving automotive powertrain housings, transmission cases, and structural nodes. Vacuum die casting is projected to grow at a 4.56% CAGR through 2031, driven by EV battery enclosures requiring porosity below 0.1% for IP67-rated sealing. Vacuum-assisted high-pressure die casting reduces gas porosity and enables T6 heat treatment, boosting tensile strength by 15-20%, critical for safety-critical chassis components. Low-pressure die casting, with 0.3-1.0 bar pressure, holds an 8-10% share and is favored for large, thin-walled components such as automotive wheels and aerospace housings. Squeeze die casting, applying 50-150 MPa during solidification, achieves ±0.1 mm accuracy and is used for steering knuckles and suspension arms. Gravity casting and other methods, such as permanent mold casting and sand casting, serve low-volume prototypes and legacy applications.

In March 2025, Ryobi Limited installed a 6,500-ton gigacasting machine at its Kikugawa Plant in Japan, marking a shift to hybrid vacuum-squeeze processes that minimize porosity and shrinkage. Seojin System and Shibaura Machine are developing a 12,000-ton press that enables OEMs to mold entire rear floors and front subframes, reducing welding and improving rigidity. Vacuum and squeeze processes increase capital intensity, with vacuum-assisted machines costing 20-30% more than traditional equipment. This shift favors suppliers with expertise in die thermal management and process monitoring. Smaller foundries using 400-800 ton machines face obsolescence as OEMs consolidate sourcing with Tier-1 suppliers capable of delivering heat-treatable castings at scale.

Complete Report Scope:

• By Application
  • Automotive
  • Electronics and Communication
  • Consumer Goods
  • Packaging and Others
• By Process
  • High-Pressure Die Casting
  • Low-Pressure Die Casting
  • Vacuum Die Casting
  • Squeeze Die Casting
  • Gravity and Others
• By Raw Material
  • Aluminum
  • Magnesium
  • Zinc
  • Others
• By Tonnage Class
  • Up to 400 Ton
  • 401-800 Ton
  • 801-2,000 Ton
  • Above 2,000 Ton
• By Province
  • Gyeonggi-do
  • Chungcheong Region
  • Gyeongsang Region
  • Jeolla and Others

List of Companies Covered in this Report:

• Seojin System Co., Ltd.
• Samkee Corp.
• Castec Korea Co., Ltd.
• Dynacast International (Korea)
• Ryobi Ltd. (Korea)
• Castman Co., Ltd.
• WonTae Die-Casting Co., Ltd.
• Gibbs Die Casting Korea
• Daeyong Industry
• MKTRON Group
• Samkwang Precision Co., Ltd.
• Dongyang Die Casting Co., Ltd.
• KODACO Co., Ltd.
• Hanjoometal Co., Ltd.
• Hyunjin Cast Co., Ltd.
• Korea Casting Co., Ltd.
• Hyundai Sungwoo Die-Casting
• Worldcast Co., Ltd.
• WooSu AMS Co., Ltd.

Additional Benefits:

• The market estimate (ME) sheet in Excel format
• 3 months of analyst support