Arizona AIAir Liquide (Airgas) in Arizona
Industrial gas group supplying hydrogen, helium and carbon dioxide to TSMC Arizona from its gas plant on the TSMC site in north Phoenix.
Phoenix (S. 45th Ave. and north Phoenix) and Tucson, AZ, plus 10 Airgas stores statewide · 1902 · About 65,000 worldwide and 18,800 in the U.S.; Arizona headcount not published · 11 open roles
Arizona AI is tracking 11 open positions at Air Liquide (Airgas) in Arizona in Phoenix, alongside 4 news items.
Air Liquide (Airgas) in Arizona: Key Developments
- Jul 16, 2026
Air Liquide invests over 160M USD in the U.S. to supply advanced chips manufacturing in Arizona
Air Liquide announced more than $160 million for a new on-site plant making ultra-pure, low-carbon hydrogen with carbon capture at an Arizona chip fab expansion, due to start operating in 2028. - Jan 25, 2022
Air Liquide announces long term agreement to supply semiconductor manufacturing site in Arizona
Air Liquide announced nearly $60 million for on-site plants supplying ultra high purity hydrogen, helium and carbon dioxide to a new chip site in Phoenix, with supply expected from the second half of 2022. - Oct 6, 2021
Industrial Gas Pipeline License Agreement with Air Liquide (Ordinance S-47996)
The Phoenix City Council adopted an industrial gas pipeline license for Air Liquide. It adopted one for Linde the same day. - May 23, 2016
Air Liquide completes acquisition of Airgas
Air Liquide completed its purchase of U.S. gas supplier Airgas, announced in November 2015 at $143 per share in cash. Air Liquide said Airgas would operate as a subsidiary and go to market as "Airgas, an Air Liquide company."
How does Air Liquide (Airgas) fit into AI?
Modern AI runs on physical silicon, and that silicon passes through several hands before it ever answers a question. Here is the path, and where Air Liquide (Airgas) sits on it. Stages not marked below are shown for context and are not claims about Air Liquide (Airgas).
- Chip design: Companies like Nvidia, Apple and AMD design the chips. Chip designers decide what a chip does and hand the blueprint to a factory. The three companies whose designs matter most to AI - Nvidia, Apple and AMD - do that work elsewhere, then send the designs to fabs. None of them owns a fab of its own.
- Wafer fabrication (here today): Fabs print billions of transistors onto silicon wafers. Hydrogen for the TSMC Arizona fab site. A fab prints a design onto a polished disc of silicon called a wafer, layer by layer, until billions of transistors exist where there was blank material. It is the hardest and most expensive step in the chain, and the reason a single factory can cost tens of billions of dollars.
- Advanced packaging: Wafers are cut and assembled into finished chips. Packaging cuts a finished wafer into individual chips and assembles them, often stacking several pieces of silicon and memory into one component. For AI chips this step is nearly as demanding as fabrication, and a wafer is not a usable product until it is done.
- Servers and devices: Chips are built into AI servers, phones and PCs. Finished chips are assembled into the things people actually buy and deploy: data-center servers, phones, laptops. This is where a chip stops being a component and starts being a product.
- AI in use: Data centers and devices run AI models on that silicon. The end of the chain: models answering questions, generating images and driving software, running on the silicon every earlier step produced. Every AI service anyone uses is running on physical hardware somewhere, and that hardware started as a wafer.
Air Liquide (Airgas): Wafer fabrication (here today)
- Gases for AI chips, by Air Liquide's account (company-reported): Air Liquide says its new Arizona plant will supply gases needed to make the most advanced chips for AI infrastructure and high-performance computing. Source: Air Liquide
- What the hydrogen is for (company-reported): Air Liquide says hydrogen is used mainly in wafer manufacturing, annealing and removing surface oxides. Source: Air Liquide
About Air Liquide (Airgas)
What Air Liquide does
Air Liquide is a French industrial gas group, founded in 1902, with its head office in Paris. It reported revenue close to 27 billion euros for 2025 and about 65,000 employees in 59 countries.
Electronics: its Electronics business had revenue of 2,465 million euros in 2025, 9% of group revenue. It supplies chipmakers with carrier gases, mainly from on-site plants, plus specialty materials, advanced materials, equipment and services.
Airgas: Air Liquide completed its purchase of Airgas on May 23, 2016. The deal was announced at $143 per share in cash, a total enterprise value of $13.4 billion on a fully diluted basis. Airgas goes to market as "Airgas, an Air Liquide company," and Air Liquide USA says it employs 18,800 people in the U.S.
In Arizona
Phoenix gas plant on S. 45th Ave.: Air Liquide has an industrial gas plant at 301 S. 45th Ave. in west Phoenix, known locally as Air Liquide America Corporation. EPA records list the site as Air Liquide Specialty Gases LLC and as Airgas, classed as industrial gas manufacturing. It makes acetylene: a risk management plan filed with EPA in May 2019 covers an acetylene process there.
Tucson gas plant: EPA records list an operating industrial gas plant at 8700 E. Old Vail Rd. under the Air Liquide name, and another EPA record lists Airgas at the same address.
Supplying TSMC: Air Liquide supplies hydrogen, helium and carbon dioxide to TSMC Arizona from its gas plant at 32500 N. 51st Ave. in north Phoenix, which EPA records name the "Air Liquide Gas Plant - TSMC." The plant sits at the west edge of the TSMC site, on part of Linde's parcel that a 2024 federal draft environmental review says Linde will sublease to Air Liquide, "which will provide bulk hydrogen to both the Facility and the general market."
City of Phoenix permits record the plant's two 20,000-gallon liquid hydrogen tanks (on a permit listing TSMC Arizona as the owner) and its helium, liquid nitrogen and carbon dioxide systems, all completed in 2025. June 2026 permits, now completed, covered hydrogen and helium systems that Air Liquide installed in TSMC's Fab 21 Phase 2 buildings.
The 2022 agreement: on January 25, 2022, Air Liquide announced a long-term agreement to supply ultra high purity hydrogen, helium and carbon dioxide to "one of the world's largest semiconductor manufacturers" at a new manufacturing site in Phoenix. It planned to invest nearly $60 million to build, own and operate on-site plants.
Air Liquide's executive vice president Michael J. Graff called Arizona "a State where Air Liquide has an established presence and significant infrastructure." The Phoenix City Council had adopted an industrial gas pipeline license for Air Liquide on October 6, 2021, the same day as one for Linde.
Growing with TSMC: a February 2026 city electrical permit covers phase 2 of the "Air Liquide Bulk Gas (BG) and Steam Methane Reforming (SMR) project at Taiwan Semiconductor Manufacturing Company". Steam methane reforming makes hydrogen from natural gas. An October 2026 permit covers "bulk piping from Air Liquide to TSMC": new hydrogen, helium and carbon dioxide lines for TSMC's next fab phases.
The 2026 announcement: on July 16, 2026, Air Liquide announced over $160 million for a new on-site plant making ultra-pure, low-carbon hydrogen with carbon capture, at "the latest fab expansion of a global leader in advanced semiconductor nodes," building on its "existing presence at the site." It is set to begin operations in 2028.
Arizona AI does not add the 2022 and 2026 figures together.
Recognition: Airgas said on October 28, 2026 that the Arizona Commerce Authority recognized Airgas and Air Liquide at its recent Governor's board meeting for their contributions to Arizona's economy.
Airgas stores: Airgas's Arizona store locator links to ten store pages in eight cities: Flagstaff, Mesa, Peoria, Phoenix (two), Safford, Tempe, Tucson (two) and Yuma, including a dry ice location in Tempe. The stores sell gases, welding and safety supplies and have no published role in Air Liquide's chip work. Each is listed under "Other Arizona locations" below.
People: Arizona AI found no published Arizona headcount. Current Arizona roles are listed in the jobs section of this page.
Not Arizona: Air Liquide's July 2025 investment of more than $50 million at a chip site is in the Southeastern United States, not Arizona.
Role in AI and chips
Fab gases, not chips: Air Liquide makes no chips. It supplies the hydrogen and other high-purity gases wafer fabs use. It says hydrogen is "primarily used in wafer manufacturing, annealing, and removing surface oxides".
Demand from AI: Air Liquide says its new Arizona plant will supply gases needed "to manufacture the most advanced chips driving tomorrow's AI infrastructure and high-performance computing."
Controversies and Issues
2001 refrigerant settlement (closed): in June 2001 the U.S. Department of Justice and EPA announced a Clean Air Act settlement with Air Liquide America Corporation. It covered allegations that refrigeration systems at 22 facilities in 18 states, including its plant in Tucson, released ozone-depleting refrigerants and broke repair and recordkeeping rules.
Air Liquide agreed to a $4.5 million civil penalty under a federal court consent decree in which it did not admit the allegations and denied violating the Act. EPA's enforcement record lists the case as closed on May 1, 2017.
Air Liquide (Airgas) in Arizona: By the Numbers
Each figure is dated and linked to its source. Figures that are company-reported, announced, or projected rather than measured are labeled.
- New Arizona chip-fab gas plant announced (July 2026): Over $160 million (announced)
- Phoenix chip-site plants announced (January 2022): Nearly $60 million (announced)
- Gases supplied to TSMC Arizona: Hydrogen, helium and carbon dioxide
- Open Arizona jobs, updated daily: 11 open roles
- Planned start of the new Arizona plant: 2028 (planned) (projected)
- Air Liquide employees in the U.S. (all states): 18,800 (U.S.) (company-reported)
The Arizona build-out, 1902 to 2028
- 1902: Founded
- 2016: Airgas purchase completed
- 2021: Phoenix approves Air Liquide gas pipeline license
- 2022: Planned start of Phoenix supply (2022 plan) (projected)
- 2022: Phoenix chip-site supply agreement announced
- 2026: New Arizona chip-fab plant announced
- 2028: Planned start of the new Arizona plant (projected)
Air Liquide gas plant, S. 45th Ave., Phoenix, Arizona
| Measure | Value | As of | Basis | Source |
|---|---|---|---|---|
| Address | 301 S. 45th Ave., Phoenix, AZ 85043 | 2026-10-31 | verified | U.S. Environmental Protection Agency |
| What it does | Industrial gas manufacturing | 2026-10-31 | verified | U.S. Environmental Protection Agency |
| What it makes | Acetylene | 2024-11-29 | verified | Environmental Data & Governance Initiative (archive of U.S. EPA data) |
Air Liquide (Airgas) Gas plant on the TSMC Arizona site, north Phoenix
| Measure | Value | As of | Basis | Source |
|---|---|---|---|---|
| Address | 32500 N. 51st Ave., Phoenix, AZ 85086 | 2026-10-31 | verified | U.S. Environmental Protection Agency |
| What it supplies | Bulk hydrogen for the TSMC Arizona site and for other customers | 2024-05-29 | verified | U.S. Department of Commerce, NIST CHIPS Program Office |
| Liquid hydrogen storage | Two 20,000-gallon tanks | 2024-02-14 | verified | City of Phoenix, Planning and Development Department |
| Expansion permits (2026) | Phase 2 electrical work for the bulk gas and hydrogen (steam methane reforming) project, and new hydrogen, helium and carbon dioxide lines to TSMC | 2026-10-19 | verified | City of Phoenix, Planning and Development Department |
Air Liquide (Airgas) Tucson gas plant, E. Old Vail Rd., Arizona
| Measure | Value | As of | Basis | Source |
|---|---|---|---|---|
| Address | 8700 E. Old Vail Rd., Tucson, AZ 85747 | 2026-10-31 | verified | U.S. Environmental Protection Agency |
| What it does | Industrial gas manufacturing | 2026-10-31 | verified | U.S. Environmental Protection Agency |
Air Liquide (Airgas) Flagstaff, Arizona
| Measure | Value | As of | Basis | Source |
|---|---|---|---|---|
| Address | 201 S. River Run Rd., Flagstaff, AZ 86001 | 2026-10-31 | company-reported From the company's own published information. | Airgas |
Air Liquide (Airgas) Mesa, Arizona
| Measure | Value | As of | Basis | Source |
|---|---|---|---|---|
| Address | 544 W. Iron Ave., Suite 101, Mesa, AZ 85210 | 2026-10-31 | company-reported From the company's own published information. | Airgas |
Air Liquide (Airgas) Peoria, Arizona
| Measure | Value | As of | Basis | Source |
|---|---|---|---|---|
| Address | 9201 W. Grand Ave., Peoria, AZ 85345 | 2026-10-31 | company-reported From the company's own published information. | Airgas |
Air Liquide (Airgas) Phoenix, E. University Dr., Arizona
| Measure | Value | As of | Basis | Source |
|---|---|---|---|---|
| Address | 2001 E. University Dr., Phoenix, AZ 85034 | 2026-10-31 | company-reported From the company's own published information. | Airgas |
Air Liquide (Airgas) Phoenix, E. Riverview Dr., Arizona
| Measure | Value | As of | Basis | Source |
|---|---|---|---|---|
| Address | 1570 E. Riverview Dr., Phoenix, AZ 85034 | 2026-10-31 | company-reported From the company's own published information. | Airgas |
Air Liquide (Airgas) Safford, Arizona
| Measure | Value | As of | Basis | Source |
|---|---|---|---|---|
| Address | 710 E. Highway 70, Safford, AZ 85546 | 2026-10-31 | company-reported From the company's own published information. | Airgas |
Air Liquide (Airgas) Tempe, dry ice, Arizona
| Measure | Value | As of | Basis | Source |
|---|---|---|---|---|
| Address | 2465 S. Industrial Park Ave., Tempe, AZ 85282 | 2026-10-31 | company-reported From the company's own published information. | Airgas |
Air Liquide (Airgas) Tucson, E. Evans Blvd., Arizona
| Measure | Value | As of | Basis | Source |
|---|---|---|---|---|
| Address | 727 E. Evans Blvd., Tucson, AZ 85713 | 2026-10-31 | company-reported From the company's own published information. | Airgas |
Air Liquide (Airgas) Tucson, W. Prince Rd., Arizona
| Measure | Value | As of | Basis | Source |
|---|---|---|---|---|
| Address | 1883 W. Prince Rd., Tucson, AZ 85705 | 2026-10-31 | company-reported From the company's own published information. | Airgas |
Air Liquide (Airgas) Yuma, Arizona
| Measure | Value | As of | Basis | Source |
|---|---|---|---|---|
| Address | 2192 E. 16th St., Yuma, AZ 85365 | 2026-10-31 | company-reported From the company's own published information. | Airgas |
Facilities
| Measure | Value | As of | Basis | Source |
|---|---|---|---|---|
| Phoenix approves Air Liquide gas pipeline license | October 6, 2021 | 2021-10-06 | verified | City of Phoenix, City Clerk |
| Where the new units will sit | On site at the customer's fab | 2026-07-16 | company-reported From the company's own published information. | Air Liquide |
| Planned start of Phoenix supply (2022 plan) | Second half of 2022 (planned) | 2022-01-25 | projected A forward-looking estimate, not a measured result. | Air Liquide Electronics |
Investment
| Measure | Value | As of | Basis | Source |
|---|---|---|---|---|
| Phoenix chip-site supply agreement announced | January 25, 2022 | 2022-01-25 | verified | Air Liquide Electronics |
| New Arizona chip-fab plant announced | July 16, 2026 | 2026-07-16 | verified | Air Liquide |
| Group revenue, 2025 (worldwide) | EUR 26.94 billion (worldwide, 2025) | 2025-12-31 | company-reported From the company's own published information. | Air Liquide |
| Electronics revenue, 2025 (worldwide) | EUR 2.465 billion (worldwide, 2025) | 2025-12-31 | company-reported From the company's own published information. | Air Liquide |
| Airgas purchase completed | May 23, 2016 | 2016-05-23 | verified | Air Liquide |
| Airgas deal value (announced November 2015) | $13.4 billion enterprise value, fully diluted ($143 per share in cash) | 2015-11-18 | company-reported From the company's own published information. | Airgas, Inc. (SEC filing) |
Workforce
| Measure | Value | As of | Basis | Source |
|---|---|---|---|---|
| Employees worldwide | About 65,000 (worldwide) | 2026-02-20 | company-reported From the company's own published information. | Air Liquide |
Production
| Measure | Value | As of | Basis | Source |
|---|---|---|---|---|
| Gases in the 2022 Phoenix agreement | Ultra high purity hydrogen, helium and carbon dioxide | 2022-01-25 | company-reported From the company's own published information. | Air Liquide Electronics |
| How the Phoenix plants are run | Air Liquide builds, owns and operates on-site plants and systems at the customer's new Phoenix chip site | 2022-01-25 | company-reported From the company's own published information. | Air Liquide Electronics |
| What the new plant will make | Ultra-pure, low-carbon hydrogen with carbon capture, among other gases, with the captured carbon dioxide purified for the customer | 2026-07-16 | company-reported From the company's own published information. | Air Liquide |
| What Air Liquide Electronics sells | Carrier gases, electronic specialty materials, advanced materials, equipment and installation, and services and analysis | 2025-12-31 | company-reported From the company's own published information. | Air Liquide |
Other
| Measure | Value | As of | Basis | Source |
|---|---|---|---|---|
| Air Liquide's description of its Arizona footprint (2022) | Air Liquide says it has an established presence and significant infrastructure in Arizona | 2022-01-25 | company-reported From the company's own published information. | Air Liquide Electronics |
| Founded | 1902 | 2026-07-16 | company-reported From the company's own published information. | Air Liquide |
| Head office (worldwide) | 75, quai d'Orsay, 75007 Paris, France | 2026-03-06 | company-reported From the company's own published information. | Air Liquide (via the French official regulated-information archive) |
| Where the Electronics business is present | Air Liquide says its Electronics business is present in Asia (about 73%), the U.S. (about 19%) and Europe (about 8%), and is 9% of group revenue | 2025-12-31 | company-reported From the company's own published information. | Air Liquide |
| Recognized by the Arizona Commerce Authority (October 2026) | Airgas says the Arizona Commerce Authority recognized Airgas and Air Liquide for their contributions to Arizona's economy | 2026-10-28 | company-reported From the company's own published information. | Airgas |
Sources
- City of Phoenix, City Clerk, 2021: City Council Formal Meeting Results, October 6, 2021
- Air Liquide, 2026: Air Liquide invests over 160M USD in the U.S. to supply advanced chips manufacturing in Arizona
- U.S. Environmental Protection Agency: Detailed Facility Report: Air Liquide Gas Plant - TSMC
- U.S. Department of Commerce, NIST CHIPS Program Office, 2024: Draft Environmental Assessment for TSMC Arizona (Volume 1)
- U.S. Environmental Protection Agency: Detailed Facility Report: Air Liquide Specialty Gases LLC (Airgas Phoenix), 301 S. 45th Ave., Phoenix
- U.S. Environmental Protection Agency: Detailed Facility Report: Airgas USA, LLC, 8700 E. Old Vail Rd., Tucson
- U.S. Environmental Protection Agency: Detailed Facility Report: Air Liquide Corp, 8700 E. Old Vail Rd., Tucson
- Airgas: Airgas Store, Flagstaff, AZ
- Airgas: Airgas Store, Mesa, AZ
- Airgas: Airgas Store, Peoria, AZ
- Airgas: Airgas Store, Phoenix, AZ, E. University Dr.
- Airgas: Airgas Store, Phoenix, AZ, E. Riverview Dr.
- Airgas: Airgas Store, Safford, AZ
- Airgas: Airgas Dry Ice, Tempe, AZ
- Airgas: Airgas Store, Tucson, AZ, E. Evans Blvd.
- Airgas: Airgas Store, Tucson, AZ, W. Prince Rd.
- Airgas: Airgas Store, Yuma, AZ
- Air Liquide Electronics, 2022: Air Liquide announces long term agreement to supply semiconductor manufacturing site in Arizona
- Environmental Data & Governance Initiative (archive of U.S. EPA data): Risk Management Plan registration report: Airgas Phoenix, 301 S. 45th Avenue (EPA facility 1000 0024 1945)
- City of Phoenix, Planning and Development Department, 2024: Permit F206 2401048: LIQ HYDROGEN TANKS - INSTALLATION
- City of Phoenix, Planning and Development Department, 2026: Permit F155 2604496: AIR LIQUIDE P3-P4 PIPELINE
- Air Liquide, 2026: Air Liquide invests over 160M USD in the U.S. to supply advanced chips manufacturing in Arizona (press release PDF)
- Air Liquide (via the French official regulated-information archive), 2026: 2025 Universal Registration Document including the annual Financial Report now available (regulated information)
- Air Liquide, 2026: 2025 Universal Registration Document
- Airgas, 2026: Airgas Facebook post, October 28, 2026 (copy kept by Arizona AI)
- Air Liquide, 2026: 2025: With a record performance and confident in its transformation dynamic, Air Liquide confirms its growth outlook
- Air Liquide, 2016: Air Liquide completes acquisition of Airgas
- Airgas, Inc. (SEC filing), 2015: Air Liquide announces agreement to acquire Airgas (Airgas Form 8-K, Exhibit 99.1)
- City of Phoenix, Planning and Development Department, 2026: Permit F155 2602622: F21P2A HMR PKG 9 - ALE H2
- Air Liquide: Air Liquide careers, Arizona
- Air Liquide USA: Air Liquide USA
Air Liquide (Airgas) Jobs in Arizona (11 open)
Arizona AI currently tracks 11 open Air Liquide (Airgas) roles in Arizona, the largest named category being manufacturing & equipment technicians (4). Counts come from the Arizona AI job index, aggregated from the employer's own careers system and refreshed twice daily; they reflect published listings, not total employment.
Most current listings at Air Liquide (Airgas) in Arizona advertise $83,200 to $93,600 a year, with a midpoint of $88,400. Across every listing the full span runs $62,400 to $185,000. Medians across 7 of 11 listings with employer-published pay.
Air Liquide (Airgas) Manufacturing & Equipment Technicians Jobs in Arizona (4)
- I&E Technician IV
Phoenix, AZ · $40.00-$45.00 per hour · Posted Sep 16, 2026 - TGCM Operations Technician 6
Phoenix, AZ · $30.00 per hour · Posted Sep 3, 2026 - TGCM Operations Technician 8
Phoenix, AZ · $37.00 per hour · Posted Sep 3, 2026 - Gas Plant Production Technician
Phoenix, AZ · $30.00-$35.00 per hour · Posted Aug 28, 2026
Air Liquide (Airgas) Business & Corporate Jobs in Arizona (2)
- Project Manager
Phoenix, AZ · Full-time · Posted Oct 26, 2026 - Senior Project Manager
Phoenix, AZ · $120,000.00 - $130,000.00 · Posted Sep 19, 2026
Air Liquide (Airgas) Facilities, Construction & Utilities Jobs in Arizona (1)
- Assistant Plant Manager
Phoenix, AZ · Full-time · Posted Oct 3, 2026
Air Liquide (Airgas) Other Roles Jobs in Arizona (4)
- Operations Administrative Assistant
Phoenix, AZ · Full-time · Posted Oct 7, 2026 - Senior TGCM Manager
Phoenix, AZ · Full-time · Posted Oct 6, 2026 - TGCM Manager
Phoenix, AZ · $120,000.00 - $140,000.00 per year · Posted Sep 9, 2026 - Project Director
Phoenix, AZ · $175,000.00 - $185,000.00 · Posted Sep 1, 2026
Air Liquide (Airgas) in Arizona: Common Questions
- How many jobs does Air Liquide (Airgas) have open in Arizona right now?
Arizona AI is currently tracking 11 open Air Liquide (Airgas) roles in Arizona, in Phoenix. The count updates automatically as Air Liquide (Airgas) adds and removes postings, and duplicate listings for the same role are merged.
- What does Air Liquide (Airgas) pay in Arizona?
Most current postings at Air Liquide (Airgas) in Arizona advertise $83,200 to $93,600 a year, with a midpoint of $88,400; across all listings the full span runs $62,400 to $185,000. These are ranges Air Liquide (Airgas) publishes on its own job postings, not estimates or self-reported figures, drawn from 7 of 11 current listings. An individual posting's range may span several job levels.
- What kinds of roles does Air Liquide (Airgas) hire for in Arizona?
The largest categories among current listings at Air Liquide (Airgas) in Arizona are manufacturing & equipment technicians (4), business & corporate (2), facilities, construction & utilities (1). Categories are derived from job titles by Arizona AI.
- Where in Arizona are Air Liquide (Airgas) jobs located?
Air Liquide (Airgas) lists Arizona roles in Phoenix. Locations are shown exactly as Air Liquide (Airgas) publishes them. Employers sometimes label roles with the metropolitan area rather than the specific campus city.
- How do I apply for a job at Air Liquide (Airgas) in Arizona?
Each listing on this page links through to Air Liquide (Airgas)'s own application page. Arizona AI does not collect applications or charge job seekers, and roles are aggregated from the employer's official careers system rather than from third-party recruiters.
- Where is Air Liquide located in Arizona?
EPA facility records list Air Liquide industrial gas plants at 301 S. 45th Ave., Phoenix, on the TSMC Arizona site at 32500 N. 51st Ave., Phoenix, and at 8700 E. Old Vail Rd., Tucson. The S. 45th Ave. and Tucson plants also appear in EPA records under the Airgas name. Airgas, an Air Liquide company, also lists ten Arizona store pages, shown under "Other Arizona locations" on this page.
- Does Air Liquide supply TSMC in Arizona?
Yes. Air Liquide supplies hydrogen, helium and carbon dioxide to TSMC Arizona from its gas plant at 32500 N. 51st Ave., Phoenix, on the TSMC site. City of Phoenix permits show the plant's liquid hydrogen tanks and gas systems Air Liquide installed in TSMC's Fab 21, and 2026 permits cover new lines from Air Liquide to TSMC for TSMC's next fab phases.
- How much is Air Liquide investing in Arizona?
Air Liquide announced nearly $60 million in January 2022 for on-site plants at a new chip site in Phoenix, and over $160 million in July 2026 for a new on-site hydrogen plant with carbon capture, due to start in 2028. City permits from 2026 show Air Liquide's expansion work at TSMC's Phoenix site. Arizona AI does not add the two announcements together.
- What gases does Air Liquide supply to chipmakers in Arizona?
Air Liquide supplies TSMC Arizona with hydrogen, helium and carbon dioxide, and its plant on the TSMC site also stores liquid nitrogen. The plant Air Liquide announced in 2026 will make ultra-pure, low-carbon hydrogen with carbon capture, among other gases, and will purify the captured carbon dioxide for its customer.
- When will Air Liquide's new Arizona hydrogen plant open?
Air Liquide says the plant announced in July 2026 is set to begin operations in 2028, with its hydrogen production and carbon capture units on site at the fab it supplies.
- Is Airgas owned by Air Liquide?
Yes. Air Liquide completed its purchase of Airgas on May 23, 2016. The deal was announced in November 2015 at $143 per share in cash, a total enterprise value of $13.4 billion on a fully diluted basis. Airgas goes to market as "Airgas, an Air Liquide company."
- Where is Air Liquide headquartered?
Air Liquide's head office is at 75, quai d'Orsay in Paris, France. The company was founded in 1902 and reports about 65,000 employees worldwide, 18,800 of them in the U.S.