Ultra-High Purity Carbon Dioxide (5N/6N) — Semiconductor Grade Market Grows at 7.1% CAGR to Reach $1.2 Billion by 2032

THeultra‑high purity carbon dioxide (UHP CO₂) marketis emerging as a critical growth segment within electronic specialty gases, driven by increasing adoption in semiConductor manufacturing—particularly in supercriticalCO₂ cleaning for advanced wafer processing and as a critical fluid for EUV lithography component manufacturing. Unlike conventional industrial grade CO₂, semiconductor‑grade UHP CO₂ requires extremely low moisture, hydrocarbon, and metallic impurity levels—typically <1 ppm for moisture and <10 ppb for individual metals—to prevent contamination in sensitive fabrication steps.

According to global industry data, the industrial CO₂ market was valued at USD 5.6 billion in 2025 and is projected to reach USD 5.96 billion in 2026 at a 6.5% CAGR, driven by industrial manufacturing expansion and beverage carbonation demand. The UHP segment is growing significantly faster, driven by semiconductor fab capacity expansion and the increasing adoption of advanced cleaning methodologies. Supercritical CO₂ cleaning offers significant advantages over conventional aqueous cleaning methods: supercritical CO₂ has near‑zero surface tension, enabling penetration into high‑aspect‑ratio structures without pattern collapse, and leaves no chemical residues, making it particularly valuable for sub‑10nm node fabrication and 3D NAND production.

In China, the UHP CO₂ market has shown rapid development in 2026. According to the China High‑Purity CO₂ Industry Report, the market has maintained a growth rate of over 5% in recent years, driven by increased demand from the semiconductor industry and the expansion of advanced electronics manufacturing. Meanwhile, global CO₂ production capacity is expected to decline from 35.7 kilotons per day in 2025 to 34.9 kilotons per day by the end of 2026, while demand continues to grow at approximately 2% annually, creating sustained supply tightness for UHP material.

For procurement professionals searching for "ultra‑high purity carbon dioxide 6N price", "UHP CO₂ for semiconductor cleaning", or "supercritical CO₂ wafer drying gas supplier", the market outlook points toward continued tightness. Chengdu Hongjin Chemical Co., Ltd. supplies ultra‑high purity carbon dioxide in 5N and 6N grades, certified for semiconductor cleaning and supercritical applications, with full analytical documentation and impurity tracking.

Sources: gasworld Global CO₂ Capacity Analysis, April 2026; GII Global Industrial CO₂ Market Report, January 2026; China High‑Purity CO₂ Industry Report, 2026