Ultra-High-Purity (UHP) Sulfuric Acid (Semiconductor Wafer Cleaning)

Sumitomo Chemical Co. Ltd. (Tokyo Japan; TYO: 4005; Sumitomo Group); #3 global DL-methionine producer at ~13% market share via Niihama Ehime Works (Ehime Prefecture Shikoku Japan). After a major expansion completed October 2018 (+100,000 MT/year new line), the Niihama facility reached ~250,000 MT/year — one of the world's largest single methionine plants. Also produces crop protection chemicals (agrichemicals), petrochemicals, and pharmaceuticals. The MetiPEARL / liquid methionine brand competes directly with Evonik MetAMINO and Adisseo Rhodimet in Asian poultry markets. Japan is the only significant Japanese methionine production base globally.

Major Japanese specialty chemical company; one of the top-3 global suppliers of UHP sulfuric acid and other semiconductor-grade wet chemicals. Core supplier to Japanese and Taiwanese fabs (TSMC, Samsung, Toshiba). Also produces semiconductor-grade hydrogen peroxide, hydrofluoric acid, and phosphoric acid. Listed: Tokyo Stock Exchange.

Japanese chemical conglomerate (TSE: 4188); carbon fiber and composites through Mitsubishi Chemical Carbon Fiber and Composites (MCCFC). US facility: Sacramento, CA (formerly Grafil, since 1984; merged with Newport Composites 2013); also Evanston, WY. Japan: Aichi prefecture (December 2025 expansion doubling Aichi + Sacramento CF capacity). Key fiber: MR70 (ultra-high strength, 12P sizing, aerospace grade) and Pyrofil standard-modulus line. Expanding for sport, aerospace, and hypercar segments. Also has carbon fiber in Japan for space program applications. Mitsubishi Chemical is also one of the world's largest producers of acrylic acid/esters (precursors to specialty coatings) and methanol derivatives — a petrochemical giant that also makes space-grade carbon fiber from the same corporate umbrella as commodity chemicals.

Formerly KMG Chemicals' ultra-pure chemicals business. FUJIFILM acquired this business from Entegris for $700M in May 2023. Operates 7 manufacturing locations across the US, Europe, and Singapore. Major supplier of UHP sulfuric acid, hydrogen peroxide, and other wet chemicals to US and European semiconductor fabs. FUJIFILM parent provides deep R&D capability for next-generation purity grades.

Japanese electronic-grade specialty chemical company (TSE: 4109, HQ Osaka; ~¥50B revenue); producer of ultra-high purity hydrogen fluoride (electronic grade, 5N to 7N+ purity — 99.999% to 99.99999%) used in semiconductor wet etching processes (HF etches silicon dioxide — SiO2 — in a highly controlled manner to pattern silicon chips). Stella Chemifa's electronic-grade HF is the standard product for Japanese semiconductor manufacturers (Renesas, Toshiba Memory/Kioxia, Sony Semiconductor) and exports to Korean (Samsung, SK Hynix) and Taiwanese (TSMC) fabs. In 2019, when Japan restricted exports of semiconductor-grade fluorinated compounds to South Korea, Stella Chemifa was one of the three Japanese companies affected by the export controls (alongside Sumitomo Chemical and JSR). Samsung reportedly had enough Stella Chemifa HF inventory for approximately 1-2 months of production when Japan imposed the restrictions.

Major US merchant sulfuric acid producer; 1,400+ employees; 17 manufacturing plants and multiple distribution facilities across US, Europe, Canada, and Asia. Founded 1945 in Detroit. Key facilities: Chicago, IL (H2SO4 production); Gent, Belgium (300 MT/day capacity, recently upgraded converter). Primarily a merchant H2SO4 distributor and producer — supplies industrial, chemical, and fertilizer customers who do not produce their own acid. Also produces oleum, battery acid, and spent acid regeneration services.