manufactured · input

Borosilicate Glass Tubing (Type I)

Pharmaceutical-grade Type I borosilicate glass tubing — the primary feedstock for vial hot-forming conversion. USP Type I is required for injectables; only a handful of manufacturers produce at pharmaceutical spec.

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Source countries

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Companies

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Goods affected

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Claims on record

What depends on it

Goods that need this input

2 essential American goods rely on borosilicate glass tubing (type i) somewhere upstream in their supply chain.

Where it comes from

Source countries

Share of global supply, by country.

CountryShare of supply
DEGermany45%
USUnited States20%
CNChina15%
INIndia8%

Who makes it

Supplier companies

3 companies produce borosilicate glass tubing (type i).

SCHOTT Pharma AG & Co. KGaA(SRTX.DE)

HQ DE28% share

German pharmaceutical glass specialist (FRA: 1SXP; IPO September 2023 at ~€3.6B market cap); subsidiary of SCHOTT AG, which is wholly owned by the Carl Zeiss Foundation — a non-profit foundation structure that has owned SCHOTT since 1884. SCHOTT Pharma is the world's largest manufacturer of pharmaceutical primary packaging glass, holding an estimated 35-45% of the global pharmaceutical borosilicate glass tubing market from which vials, ampoules, and syringes are drawn. Type I borosilicate glass has been SCHOTT's core product since founder Otto Schott invented borosilicate glass composition in 1884, and SCHOTT has the longest continuous manufacturing history of any pharmaceutical glass maker. Key pharmaceutical glass vial production plants in Müllheim (Germany), Jena (Germany), Schweinfurt (Germany), and multiple international sites. Supplied hundreds of millions of vials for COVID-19 vaccine programs including BioNTech/Pfizer mRNA vaccines.

Gerresheimer AG(GXI.DE)

HQ DE17% share

German pharmaceutical packaging company (XETRA: GXI; MDAX; ~€1.8B revenue 2023); headquartered in Düsseldorf. Gerresheimer is a major pharmaceutical glass and plastic primary packaging manufacturer serving both Type I glass vials (for injectables) and plastic pharmaceutical containers. Glass manufacturing plants include Wackersdorf (Bavaria) and Tettau (Thuringia) in Germany, plus international plants in US (Vineland NJ), India, Mexico, Czech Republic. Gerresheimer is vertically integrated — operates both primary glass tubing drawing capacity and downstream vial conversion at some sites. Listed company focused primarily on high-value pharmaceutical packaging; roughly 17-20% global pharmaceutical glass vial market share.

Corning Incorporated(GLW)

HQ US10% share

Specialty glass and ceramics manufacturer; pharmaceutical glass via Life Sciences segment. Acquired Gerresheimer glass tubing business (2015). Developed Valor Glass — premium ion-exchange-strengthened borosilicate alternative approved by FDA (2025). Received $261M in US government funding (Operation Warp Speed) to expand vial production capacity.