Fluorspar and hydrofluoric acid (HF) feedstock

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Chinese concentration of acid-grade fluorspar gives pricing power over the sole upstream fluorine source for chip etch gases and wet chemicals.

Acid-grade fluorspar (CaF2) is mined and reacted with sulphuric acid to make anhydrous hydrofluoric acid. This is the sole upstream fluorine source for etch gases and fab wet chemicals used in chip manufacturing. Chinese concentration of fluorspar gives upstream pricing power; acid-grade and anhydrous HF command premiums over metallurgical grades.

Why the concentration exists

Acid-grade fluorspar containing more than 97% calcium fluoride serves as the primary raw material for hydrofluoric acid production. The manufacturing process reacts fluorspar with sulfuric acid at high temperatures to yield hydrogen fluoride. Over 90% of global hydrofluoric acid capacity derives from this fluorspar-sulfuric acid route, which remains the dominant production method for fluorine compounds.[7][9][10][12][3][14][13]

Geological concentration drives supply vulnerability, as commercial acidspar extraction occurs in just three nations: China, Mexico, and Mongolia. China alone accounted for more than 55% of average annual global fluorspar production between 2016 and 2020. This geographic concentration reflects the uneven distribution of viable fluorspar deposits rather than technological barriers to entry.[11][8]

What the evidence shows

New entrants face a 12–18‑month qualification gauntlet with semiconductor end‑users, requiring multiple sampling rounds and on‑tool testing.

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Fluorspar sulfuric acid route is expected to dominate the global hydrogen fluoride market with 84.6% share in 2026.

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RESCORED JUL 2026oligopolyscaling6 companies

Who supplies it

China dominates global fluorspar supply as the largest producer, with specialized suppliers operating across China, India, and Europe. Koura produces over 20% of world fluorspar output and around 10% of hydrofluoric acid. Mexichem operates what it claims is the world's largest fluorspar mine in San Luis Potosí, Mexico, and purchased a hydrofluoric acid plant it calls the second largest such facility globally.[10][1][18][6]

Global chemical conglomerates manufacture hydrofluoric acid, with Honeywell and Solvay among the leading producers. Solvay acquired a fluorspar mine in Namibia in 1997 with more than 20 years of reserves. Production facilities typically locate near fluorspar mines or industrial zones with stringent safety infrastructure due to the hazardous nature of hydrofluoric acid handling.[1][6]

Major hydrofluoric acid producing nations include China, Mexico, Japan, and the United States. US hydrogen fluoride production capacity reached 208,000 metric tons in 2001, with domestic production concentrated in Louisiana and Texas. The United States imported 484,000 metric tons of acid-grade fluorspar and 39,000 metric tons of metallurgical-grade fluorspar in 2000.[14][5][2][4]

Who controls it

Honeywell International Inc.LANXESSSolvay+3 more tracked

$4.0B market · 20254.86% CAGRsource

What it depends on, and what depends on it

Hydrofluoric acid serves as the primary feedstock for manufacturing virtually all organic and inorganic fluorine-bearing compounds. In 2025, approximately 1.0 million metric tons of global hydrofluoric acid demand went toward aluminum fluoride production. The compound also enables production of refrigerants, lithium-ion batteries, semiconductors, and uranium fuel.[2][3][16][15]

Where it sits in the stack

Takes in: Fluorspar ore, sulphuric acid, energy

Sends on: Acid-grade fluorspar (>97% CaF2); anhydrous HF; aqueous HF; fluorine source for downstream gas and chemical synthesis

depends onSulphuric acid

feeds intoLithium Specialty and industrial gases Specialty and electronic gases Semiconductor manufacturing and supply chain Wet chemicals and electronic-grade acids/bases Electronic-grade specialty gases Uranium conversion (U3O8 to UF6)

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What to watch

Masan High-Tech Materials signed a memorandum of understanding with Fluorine Korea in December 2024 to supply up to 70,000 tons of acid-grade fluorspar annually. The material will feed a new South Korean facility expected to commence operations in 2026. This agreement represents a strategic effort to diversify fluorspar supply routes for Asian semiconductor manufacturing.[17]

South Korea imported approximately 44% of its hydrofluoric acid from Japan during the first five months of a recent year, following Japan's imposition of export restrictions. This trade disruption exposed the vulnerability of semiconductor supply chains to geopolitical friction. The incident prompted South Korean manufacturers to seek alternative supply arrangements and accelerated domestic capacity planning.[19]

Sources

Full scorecard, owner shares, supply edges and the full tracked roster are in the desk letter.

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