South Korea Deionized Water Systems Market to Reach USD 13.2 Billion by 2032, Growing at a CAGR of 7.61% During 2026–2032

The South Korea deionized water systems market was valued at USD 7.9 billion in 2025 and is projected to advance to USD 8.5 billion in 2026, further expanding to USD 13.2 billion by 2032, registering a CAGR of 7.61% during the 2026–2032 forecast period.

This growth is anchored in the government-industry announcement of an 800 trillion won (USD 517.9 billion) commitment by Samsung Electronics and SK Hynix to establish a new memory-chip production cluster in southwestern South Korea. Additionally, the initiative is supported by a 30 trillion won, 15-year government package covering the entire semiconductor value chain.

Electronics manufacturing remains the principal end-user segment driving market demand, as semiconductor wafer cleaning and precision fabrication require a continuous supply of high-resistivity deionized and ultrapure water. According to Invest KOREA, the government has expanded 20–30% tax incentives for semiconductor equipment investments while directing infrastructure support toward the Pyeongtaek and Yongin semiconductor complexes.

Furthermore, regulatory and infrastructure developments are strengthening market expansion. South Korea's Ministry of Climate, Energy and Environment announced plans in 2026 to secure 650,000 tons of industrial water per day for the new southwest semiconductor cluster. Complementing these efforts, domestic ion-exchange resin producer Samyang is expanding ultrapure water resin sales, targeting 120 billion won in annual revenue.

Moreover, Medium Capacity (10–100 m³/hr) systems led the market with a 57.4% share in 2025, while Electronics & Semiconductor represented the largest end-use industry at 52.6% share. In parallel, the market is moderately consolidated, with the top five companies collectively accounting for approximately 48% of total revenue. As a result, sustained infrastructure investment across electronics, pharmaceutical, and battery manufacturing is expected to support continued market expansion throughout the forecast period.

South Korea Deionized Water Systems Market Highlights

The South Korea deionized water systems market was valued at USD 7.9 billion in 2025 and is projected to reach USD 8.5 billion in 2026, further expanding to USD 13.2 billion by 2032, registering a CAGR of 7.61% during the forecast period.
Medium Capacity (10–100 m³/hr) systems emerged as the leading capacity segment, accounting for approximately 57.4% of the market in 2025.
Electronics & Semiconductor represented the largest end-use industry, capturing approximately 52.6% of the total market share.
The market is moderately consolidated, with the top five companies collectively accounting for approximately 48% of the total market revenue.