COMPANY PROFILE / NANOTECHNOLOGY
OCSiAl
A Luxembourg materials company that makes single-walled carbon nanotubes (TUBALL) at scale, for use as a tiny-dose additive in batteries, plastics and coatings
OCSiAl is a nanomaterial producer that synthesizes and sells single-walled carbon nanotubes (SWCNTs) under the brand TUBALL. It describes itself as the world's largest SWCNT producer. Besides powder, it supplies forms that are easier to use: dispersions for lithium-ion battery electrodes and concentrates for plastics and coatings. The company is headquartered in Luxembourg and is privately held. Its sales, profit and shareholders could not be confirmed from official materials. By its own figures, the plant in Serbia that opened in October 2024 has a nameplate capacity of 60 tonnes a year. In November 2025 it announced a new plant in Differdange, Luxembourg, with a planned investment of US$300 million and a staged start between 2028 and 2030. Drawing on the company's website and press releases, the TUBALL technical pages and the U.S. Federal Register, this article sets out what could be confirmed and what could not, and explains from a materials engineer's view why such a small dose can matter.
- At a glance: OCSiAl and its place in nanotechnology
- Logo and naming
- Where the company sits in nanotechnology
- Company scale
- Resources committed to nanotechnology
- Track record
- Plans
- What the company is aiming for in nanotechnology
- Partnership map for nanotechnology
- Technologies, products and services
- Risks
- Glossary
- References
- Claim-to-source audit
1. At a glance: OCSiAl and its place in nanotechnology
(operating entity: OCSiAl International S.à r.l.)Luxembourg register number B246650. The name comes from the symbols O, C, Si and Al (company description)
LuxembourgRegistered address: 1, rue de la Poudrerie, L-3364 Leudelange. The company says it was founded in Luxembourg in 2010
(single-walled CNTs)Primary type. Supplies powders, dispersions and concentrates; does not make end products
TUBALL (brand)The company calls them “graphene nanotubes”. Mean outer diameter 1.6±0.4 nm, length of 5 µm or more (manufacturer's stated value)
60 t/year nameplateOpened October 2024. A new plant is planned in Differdange, Luxembourg (staged start 2028-2030)
OCSiAl's strength is that it ships single-walled CNTs as a low-dose additive, in quantities and forms that battery and plastics makers can use. According to the company, SWCNTs are thinner and longer than multi-walled CNTs (MWCNTs), and properties begin to change at loadings of around 0.01% (the company's comparison; test conditions are not given on the page) Sourced. On the other hand, sales, profit and shareholders could not be confirmed, and phrases such as "world's largest" or "only" are all the company's own description. Its capacities (60 t a year in Serbia, up to 100 t planned in Luxembourg) are company nameplate figures and plans; actual shipments and utilization are not published Not yet confirmed.
2. Logo and naming
The logo is the image published on the company's official website (ocsial.com): white lettering with the carbon symbol "C" in a green block. It is taken as it is and placed on a dark background because the lettering is white. It has not been recreated with generated images.
Naming: the company is OCSiAl (capital O, C and S, lowercase i, capital A, lowercase l). The website is published by OCSiAl International S.à r.l. of Luxembourg. TUBALL (TUBALL™) is the brand name of its SWCNT products and is separate from the company name. The company also calls SWCNTs "graphene nanotubes", but they are what is generally called single-walled carbon nanotubes (SWCNTs); the company uses both terms side by side.
Official site: https://ocsial.com/3. Where the company sits in nanotechnology
OCSiAl's primary type is nanomaterial producer. It has no secondary type, since it does not make finished products such as batteries or paints. The core is single-walled carbon nanotubes (SWCNTs). The uses that could be confirmed in the company's materials are as follows.
| Material / use | Where it stands at OCSiAl | Primary sources confirmed | Status |
|---|---|---|---|
| Conductive additive for lithium-ion batteries (cathode and anode) | The use given most weight. A press release says it supplies most European EV battery makers, and that the tubes are used in both cathodes and anodes. Anode (graphite, silicon) products are water-based dispersions (Tuball BATT); cathode products are NMP-based dispersions | Press release (June 2026), product page | Sourced (company description) |
| Antistatic and conductive additive for plastics, rubber, coatings and adhesives | Supplied as powder, concentrates (Tuball MATRIX) and dispersions (Tuball COAT_E, LATEX). The company cites example loadings of about 0.01-0.1% (conditions not given) | Product page, website | Sourced (company description) |
| Anti-corrosion coatings | PV PAINT of Vietnam plans to launch zinc-rich coatings containing TUBALL in the third quarter of 2026 (company announcement) | Press release (August 2026) | Sourced / Not yet confirmed |
| Batteries for electric aircraft | Takes part in a joint Horizon Europe project, with SWCNTs for silicon anodes and dry-coated cathodes (target: energy density above 400 Wh/kg) | Press release (September 2026) | Sourced / target is Not yet confirmed |
| Additive for metals, glass, concrete and so on | Listed by the website as possibilities. Commercial products could not be confirmed on the website | Website | Not yet confirmed |
| Making multi-walled CNTs or graphene sheets | The company mentions "graphene sheets", but supply as a product could not be confirmed | Website | Not confirmed |
4. Company scale
OCSiAl is privately held and does not publish financial statements. Here is the scale that official materials let us confirm Sourced.
| Item | What was confirmed |
|---|---|
| Sales, operating profit, total capital spending | Not disclosed. Not stated on the website or in the press releases. No annual report was found |
| Employees | More than 500 (Europe, the Americas and Asia; 20 countries), per the company. The site also shows "20+ research workers", but does not define the term |
| Locations | Headquarters in Luxembourg. Offices in Europe, the USA, China (Shenzhen and Shanghai), Hong Kong, India, Japan, Malaysia, South Korea, Taiwan, Mexico, Canada and Serbia (company statement) |
| Sales network | 20 distributors covering more than 50 countries (company statement). In Japan, Kusumoto Chemicals of Tokyo is listed as a distributor |
| Valuation | The company says it became a US$1 billion "unicorn" in July 2019. Who made the valuation, and on what basis, is not stated in official materials |
| Patents | The company says it has more than 70 patents and applications (the October 2024 release says patent protection in 46 countries). The reference date for the count is not given |
| Certification | The company says the Serbian plant is certified to ISO 9001, 14001 and 45001 (technology page) |
"The world's largest SWCNT producer" and "the only industrial technology" are the company's own words. No comparison with other producers' output appears in its materials, so this article makes no judgment about rank or superiority. The site also includes a figure marked "data for 2021" (nanotubes produced each second would stretch 600,000,000 km); it does not describe current output Not yet confirmed.
5. Resources committed to nanotechnology
Because the company is privately held, financial disclosure is limited. The table below sorts what could and could not be confirmed under four headings: people, money, outside investments and academia or public funds.
| Item | What was confirmed | Status |
|---|---|---|
| People (R&D sites and staff) | More than 500 employees. R&D sites (TUBALL CENTERs): Shanghai (opened December 2019, 1,600 m², 15 laboratories, 210 pieces of equipment; batteries, plastics, coatings, composites and elastomers) and Luxembourg (opened September 2020, 350 m², more than 50 pieces of equipment; automotive elastomers and thermoplastic composites). R&D headcount is not disclosed | Sourced / not disclosed |
| Money (R&D spending and capital spending) | R&D spending and past capital spending are not disclosed. As a planned amount, US$300 million for the new Luxembourg plant (announced November 2025, more than 300 jobs). The investment in the Serbian plant could not be confirmed (at the opening, the Luxembourg ambassador to Serbia called it the largest investment by a Luxembourg company in Serbia to date) | Sourced / not disclosed / plan is Not yet confirmed |
| Outside investments, acquisitions, joint ventures, divestitures | No investment, acquisition, joint venture or divestiture by OCSiAl itself could be confirmed. On the receiving side, it raised funds in 2025 from a club of Luxembourg investors (amount and investors not disclosed) | Sourced / not confirmed (own investments) |
| Universities, institutes and public funds | The website lists permanent research partners including Fraunhofer IPA, the German Institute of Rubber Technology (DIK), Hamburg University of Technology, Argonne National Laboratory, Rice University, the University of New Mexico and TARRC (UK). It takes part in the Horizon Europe ELEVATE project (announced September 2026). In 2017 it signed a memorandum with the Luxembourg Government on a new plant and R&D center. It gives free samples to researchers. No stated amount of public funding could be confirmed, and the ELEVATE project could not be found in the EU's CORDIS database | Sourced / not confirmed (public funding amount) |
Status of main production facilities
All capacities are the company's nameplate figures or plans. Actual shipments, utilization and yields are not published.
| Facility | Location | Scale (stated) | Stage | Date and source |
|---|---|---|---|---|
| Graphetron 1.0 (first industrial-scale synthesis unit) | Not stated on the website | 1 t/year | Operating (the company says it started in November 2013) | Website, About |
| Verification of synthesis-unit scalability | - | The company says one unit can scale up to 50 t | Verified, per the company (2019) | Website, About |
| Serbian plant | Serbia | 60 t/year (nameplate). The company says its dispersion capacity can serve 65 GWh of batteries. 10,000 m² | Operating (opened 29 October 2024). The company says it runs on hydroelectric power only | Press release, October 2024 |
| Second synthesis unit at the Serbian plant | Serbia | Plan to double capacity (as of October 2024). In November 2025 the company wrote that it is increasing capacity fourfold | Planned / under way. Current capacity could not be confirmed | Press releases, October 2024 and November 2025 |
| New Luxembourg plant (Graphetron LUX) | Differdange (3.63 ha, land under a long-term lease from the State) | Up to 100 t/year at launch. Investment US$300 million, more than 300 jobs | Planned (start 2028; staged launch 2028-2030). Not yet confirmed | Press release, November 2025; website, Technology |
6. Track record
| When | What happened | What it means |
|---|---|---|
| 2009-2010 | Starting from the question of whether an industrial synthesis for SWCNTs could scale to hundreds of thousands of tonnes, the company was founded in Luxembourg in 2010 (company description) | Scale was set as the first goal |
| November 2013 | Started Graphetron 1.0, its first industrial-scale synthesis unit (1 t/year) | From laboratory to industrial scale |
| May 2014 | Introduced TUBALL in London | Product launch |
| 2016 | Registered as an SWCNT under EU REACH in September (up to 10 t a year). First sales contract, for 1 t, in November. Began downstream products for plastics and batteries | Regulatory work and the start of sales |
| 2017 | In December the company says the U.S. EPA authorized production and sale of up to 25 t of TUBALL a year. In July, a memorandum with the Luxembourg Government on a new plant and R&D center | Regulatory steps in North America and Europe, and a plan for a production base |
| 2019 | In December the EPA published a significant new use rule (SNUR) for SWCNTs in the Federal Register, and the company says it allows unlimited sales. TUBALL CENTER Shanghai opened. In July, valuation of US$1 billion (company statement) | Sales conditions in the U.S. set out (the content of the Federal Register rule is covered in section 10) |
| 2020 | In April, REACH volume raised to up to 100 t a year (company statement). In September, TUBALL CENTER Luxembourg opened | Larger allowed volume in Europe |
| 2023 to October 2024 | Construction of the Serbian plant began in 2023; opening ceremony on 29 October 2024. 60 t/year, with dispersion and concentrate lines, R&D and quality control labs | First synthesis site in Europe |
| 11 November 2025 | Announced a new plant in Differdange, Luxembourg, which it calls the world's largest. Long-term land lease signed, and funds raised from domestic investors | A plan to bring production to the home country |
| 25 June 2026 | Announced it was named a supplier of SWCNTs for graphite anodes in the Unified Cell platform of PowerCo, the battery subsidiary of the Volkswagen Group. Supplied from the Serbian plant | Adoption in the European battery supply chain |
| August-September 2026 | Anti-corrosion coatings from PV PAINT (August); the ELEVATE project for electric aircraft batteries (September) | Moves beyond batteries, and into a public research project |
7. Plans
staged start 2028-2030Company plan. The land lease is signed; progress on construction and a final investment decision could not be confirmed
(timing and status not confirmed)October 2024 said "double", November 2025 said "fourfold". Actual operation could not be confirmed from official materials
in Australia and CanadaListed as a "near-term plan" on the TUBALL site. No timing given
carbon neutral by 2050Company targets. Scope and base year are not given on the website
Citing demand from next-generation battery platforms, the company says it is "evaluating additional European capacity expansion" Not yet confirmed. It gives no sales target, shipment target or specific launch dates for new products in official materials.
None of the following appears in the primary sources Not yet confirmed.
Sales, profit and R&D spending / the basis of the shareholder structure and valuation / current synthesis capacity in Serbia (whether the second unit is running) / the final investment decision and construction progress in Luxembourg / shipment volumes and utilization / sales by customer / grant amount for the ELEVATE project and OCSiAl's share / how the REACH volume (100 t a year) relates to future production scale / the current registration status in official EU databases.
8. What the company is aiming for in nanotechnology
This section includes points the company does not state directly. They are given as inferences drawn from the primary sources, with the basis.
| What can be read | Primary basis | Status |
|---|---|---|
| The mission is to make SWCNTs a common additive that can be put in small amounts into almost any material | Website: the mission is to improve all materials and lower the "price per property". It claims applications across up to 50% of global materials markets (marked as based on estimates by a leading management consulting firm) | Sourced (company description) |
| For now the main battlefield is conductive additives for lithium-ion batteries, and the company is firming up supply to European battery plants | Supply to PowerCo (2026), expansion of the Serbian plant, the new Luxembourg plant, the statement that it supplies most European EV battery makers, research on electric aircraft batteries | Inference |
| It aims to be a supplier that meets European automotive and battery requirements through local sourcing and regulatory readiness | Release: from Serbia, it says it increases local sourcing of critical battery materials in Europe; it passed PowerCo's audits; REACH and EPA compliance | Inference |
| Its differentiator is to supply dispersions and concentrates, not only powder, so customers can use it in existing processes | Product page: powders, dispersions, concentrates; licences for distributors to make dispersions, and supply of special mixing equipment | Sourced (company description) |
The reason for reading batteries as the main battlefield is that the official announcements lean heavily toward batteries. The October 2024 Serbia release described its dispersion capacity as "65 GWh of batteries" and named, among its main customers, makers of cells with silicon-rich anodes, fast-charging graphite, ultra-thick cathodes and semi-solid batteries. The November 2025 Luxembourg plan, the June 2026 PowerCo supply and the September 2026 ELEVATE project are all about batteries. For plastics and coatings, the most recent announcement is a single one, PV PAINT (August 2026); the product range is wide (Tuball MATRIX 201-204 and others), but the share of sales by use is not disclosed. So it cannot be confirmed whether batteries account for most of sales. This is our reading of the content of the announcements Not yet confirmed.
9. Partnership map for nanotechnology
OCSiAl's relationships center on supply to battery makers and carmaker groups, and joint development with European research bodies; no acquisitions or joint ventures appear. Customers named publicly are few, such as PowerCo and PV PAINT, and the breakdown behind the claim of supplying "most European EV battery makers" cannot be confirmed from official materials Not yet confirmed.
10. Technologies, products and services
The following draws on the company's website and the TUBALL technical pages. All values are the manufacturer's stated values, with the test method given alongside. They do not show superiority over any other maker's product Sourced.
| Item | Manufacturer's stated value | Test method (as the company states it) |
|---|---|---|
| Number of walls | 1 | Transmission electron microscopy (TEM) |
| Outer diameter (mean) | 1.6±0.4 nm | Optical absorption; ISO/TS 10868:2017 |
| Length | 5 µm or more | Atomic force microscopy (AFM) |
| CNT content | 80 wt% or more (standard grade; powder grades range from 80% to 99.5%) | OCSiAl internal method (ash residue) |
| Metal impurities | 15 wt% or less | OCSiAl internal method, ICP-AES |
| Moisture | Under 5% | OCSiAl internal method, infrared thermogravimetry |
| G/D ratio (indicator of defects) | Above 90 (shown as "nominal value 90, up to 120") | Raman spectroscopy (532 nm) |
| Specific surface area | About 1,200 m²/g or more | Method not stated |
Products come in four forms (company product pages).
| Form | Examples | Use and medium (company description) |
|---|---|---|
| Powder | TUBALL; high-purity TUBALL | Energy storage, paints and coatings, resins and composites, elastomers |
| Dispersions | Tuball BATT (anode: water with CMC and others; cathode: NMP with PVDF and others), Tuball LATEX, Tuball COAT_E | Conductive additive for lithium-ion batteries; latex; coatings |
| Concentrates (paste, pellets) | Tuball MATRIX 201-204 (plasticizer-based) | Epoxy, polyurethane, polyester and other resins and coatings. The company says they can be used without changing formulations or processes |
| Licences and equipment | Licences for distributors to make dispersions and concentrates; supply of special mixing equipment | The company's Partners page |
Example loadings are also published (test conditions, base materials and standards are not given on the page, so please do not compare them with values obtained under other conditions).
| Use | Loading and effect shown by the company |
|---|---|
| Silicon anode of a lithium-ion battery | 0.05% raises battery cycle life by up to 4 times |
| ABS plastic | 0.03% improves impact resistance and gives antistatic properties |
| Pressure-sensitive adhesive (PSA) film | 0.04% gives stable antistatic properties while keeping transparency |
| Tire rubber | 0.1% improves grip and durability |
| Aluminium | Tensile strength and Young's modulus both up by 100% |
(1) The effect comes from a thin, long shape and a connected network. In the company's data, the mean outer diameter is about 1.6 nm and the length is 5 µm or more. It says the aspect ratio (length divided by diameter) exceeds 3,000. When thin, long, conductive particles touch one another inside a resin or an electrode, they form a path for electricity (a conductive network) even at a small amount. The reason the company writes "effective from 0.01%" is likely this shape (a general explanation; the company also says a three-dimensional network forms). The company compares this with multi-walled CNTs and granular carbon black, which it says need larger amounts for the same conductivity (0.5-5% and 20-40%). The required amount changes with the base material and test method, so this article does not judge the figures against one another. See our explainers on carbon nanotubes and on graphene.
(2) Purity and defects are separate measures. The company's standard grade has a CNT content of 80 wt% or more and metal impurities of 15 wt% or less. The metal is probably leftover catalyst, but its website does not describe the synthesis method or the catalyst, so this is an inference. For uses such as batteries, where metal impurities can matter, it offers high-purity grades up to 99.5% content (the allowable level for each use is not public). The G/D ratio is a Raman-based indicator of defects; a larger value is generally taken to mean higher crystallinity, with fewer defects. The company states above 90, but which sample the value represents and how much it varies between lots is not published.
(3) The hard part of productization is "unbundling". The company itself explains that SWCNTs are thin and flexible and tend to clump into bundles in order to lower their surface energy. A bundle cannot form the network, so the step that loosens bundles and spreads them evenly in a liquid or resin decides performance. Offering water-based and NMP-based dispersions with dispersants such as CMC, and concentrates kneaded into plasticizers, reads as a way to spare customers from reproducing this step themselves (inference). Numbers for the type of dispersant and the degree of dispersion are not public.
(4) Safety and regulation should not be generalized. The company says TUBALL tends to form bundles and agglomerates and cannot become respirable, and it cites workplace measurement case studies (under 5% of the NIOSH recommended exposure limit of 1 µg/m³). On the other hand, the U.S. EPA rule of 2019 sets conditions of use for SWCNTs (generic), including workplace protection such as respirators with a NIOSH assigned protection factor of at least 50. It cannot be said that something is safe or hazardous simply because it is nano; whether a given task is acceptable has to be checked against each country's rules and the product's safety data sheet (this article is not individual advice). See also our explainer on the definition and regulation of nanomaterials.
11. Risks
| Risk | Details | Status |
|---|---|---|
| Opaque finances | Sales, profit, debt, R&D spending and shareholders cannot be confirmed from official materials. How the US$300 million plant will be financed is also undisclosed. This article cannot assess financial health | Not confirmed |
| Capacity track record is not visible | All capacities are nameplate figures or plans. Whether the second unit in Serbia is running, and when "fourfold" will happen, cannot be confirmed. "Largest" and "only" are the company's own description | Sourced (company description) / Not yet confirmed |
| Concentration in uses and customers | Announcements lean toward batteries. If adoption of battery designs (silicon anodes, dry electrodes, solid-state cells and so on) is slow, demand for conductive additives could be affected. Sales by customer are not disclosed | Inference |
| Regulatory change | Under EU REACH, the company says it raised its volume band to 100 t a year in 2020. Whether that registered volume is enough for current output (60 t a year, with several times that planned) could not be confirmed from official materials. The U.S. SNUR sets conditions of use (respirators, limits on uses). Nanomaterial rules and definitions can be revised | Sourced (company description) / not confirmed |
| Updated health and environmental assessments | The company says its tubes fall under the IARC classification Group 3, but that is a classification at the time of assessment and can change with new evidence. This article does not generalize about safety | Sourced (company description) |
| Geographic concentration | Production is concentrated at one site in Serbia (the November 2025 release says nanotubes are "currently produced only in Serbia"). The company's materials do not discuss risks in raw materials, power or logistics | Sourced / Inference |
| Competitors and substitutes | Competition from other SWCNT makers and from substitute conductive additives such as multi-walled CNTs and carbon black. Competitor movements are not in the company's materials and this article does not assess them | Inference |
| Delay of the new plant | For Luxembourg, the land lease is confirmed, but construction, equipment orders and permits could not be confirmed. The 2028 start is a company plan | Not yet confirmed |
12. Glossary
- Single-walled carbon nanotube (SWCNT)
- A fiber made by rolling one sheet of carbon atoms in a hexagonal pattern (graphene) into a tube. The diameter is about 1-2 nm. OCSiAl also calls it a "graphene nanotube".
- Multi-walled carbon nanotube (MWCNT)
- Graphene tubes nested several layers deep. Thicker and stiffer than single-walled tubes.
- TUBALL
- OCSiAl's brand name for its SWCNTs.
- Conductive additive
- A material added in small amounts to make electrodes and similar parts conduct electricity better.
- Conductive network (percolation)
- A continuous path for electricity formed when long thin particles touch one another.
- G/D ratio
- The intensity ratio of the G band to the D band in Raman spectroscopy. A larger value is generally read as fewer defects in the crystal structure.
- Dispersion
- CNTs spread evenly in a solvent (water or NMP) together with a dispersant.
- REACH
- The EU chemicals regulation. Registration is required according to the volume made or imported. For nanomaterials, information is required substance by substance.
- SNUR (significant new use rule)
- A U.S. rule under TSCA. Anyone who wants to use the substance in a way the EPA has designated must notify the agency first.
- Nameplate capacity
- The design capacity of a facility. Separate from actual output or utilization.
- Manufacturer's stated value
- A description or performance value given by the maker itself. Without test conditions and version, it cannot be compared with other products.
13. References
- OCSiAl Company website, About. History from 2009 to 2024, locations, headcount, origin of the name. https://ocsial.com/about
- OCSiAl Company website, Technology. Stated capacity of the Serbian plant and the planned Luxembourg plant, patents, certifications. https://ocsial.com/technology
- OCSiAl Company website, Graphene Nanotubes. Single-walled versus multi-walled CNTs, the company's comparison, example loadings by use. https://ocsial.com/nanotubes
- OCSiAl OCSiAl Launches Development of the World’s Largest Graphene Nanotube Manufacturing Hub in Luxembourg (press release, 11 November 2025). https://ocsial.com/en/news/ocsial-launches-development-of-the-worlds-largest-graphene-nanotube-manufacturing-hub-in-luxembourg/
- OCSiAl OCSiAl Opens First European Graphene Nanotube Facility (press release, 29 October 2024). https://ocsial.com/news/ocsial-opens-first-european-graphene-nanotube-facility
- OCSiAl OCSiAl to Supply Single Wall Carbon Nanotubes to PowerCo’s Salzgitter Facility (press release, 25 June 2026). https://ocsial.com/news/ocsial-to-supply-single-wall-carbon-nanotubes-to-powercos-salzgitter-facility/
- OCSiAl OCSiAl Technology at the Core of Commercial Electric Flights (press release, 24 September 2026). The ELEVATE project. https://ocsial.com/news/ocsial-technology-at-the-core-of-commercial-electric-flights/
- OCSiAl OCSiAl Nanotubes Power PV PAINT’s New Commercial Anti-Corrosion Coatings (press release, 11 August 2026). https://ocsial.com/news/ocsial-nanotubes-power-pv-paints-new-commercial-anti-corrosion-coatings/
- OCSiAl (TUBALL) TUBALL website, Product Safety. REACH registration, U.S. EPA status, workplace measurement case studies, the company's statements. https://tuball.com/pages/product-safety
- OCSiAl (TUBALL) TUBALL website, About TUBALL. Technical data (CNT content, diameter, length, G/D ratio) with test methods, and the loading comparison. https://tuball.com/about-tuball
- OCSiAl (TUBALL) TUBALL website, Carbon nanotube products. Powders, dispersions and concentrates. https://tuball.com/carbon-nanotube-products
- OCSiAl Company website, R&D. Size of the TUBALL CENTERs, research partners, free samples for researchers. https://ocsial.com/rnd
- OCSiAl Company website, Partners. List of distributors and research partners. https://ocsial.com/partners
- OCSiAl Company website, Sustainability. Carbon reduction targets for 2030 and 2050, example uses. https://ocsial.com/sustainability
- OCSiAl Company website, Legal notice. Name of the operating entity, Luxembourg commercial register number, address. https://ocsial.com/legal-notice
- U.S. EPA / Federal Register Significant New Use Rules on Certain Chemical Substances (18-2), 5 December 2019 (document 2019-26225). The rule for single-walled carbon nanotubes (generic, PMN P-17-257). https://www.federalregister.gov/documents/2019/12/05/2019-26225/significant-new-use-rules-on-certain-chemical-substances-18-2
- OCSiAl Company website, home page (source of the logo image). https://ocsial.com/
14. Claim-to-source audit
| Claim in the text | Status | Source |
|---|---|---|
| Name, address and operating entity (OCSiAl International S.à r.l., register number B246650, Leudelange); founded in Luxembourg in 2010; origin of the name | Sourced | Reference 15, 1 https://ocsial.com/legal-notice https://ocsial.com/about |
| More than 500 employees, 20 countries, list of locations, 20 distributors in more than 50 countries, example distributors (Kusumoto Chemicals, C.H. Erbslöh) | Sourced (company description) | Reference 1, 13 https://ocsial.com/about https://ocsial.com/partners |
| History (Graphetron 1.0 in 2013, TUBALL in 2014, REACH and EPA in 2016-2020, US$1 billion valuation in 2019, TUBALL CENTERs) | Sourced (company description) | Reference 1, 9 https://ocsial.com/about https://tuball.com/pages/product-safety |
| Size of the TUBALL CENTERs (Shanghai 1,600 m², 15 laboratories, 210 items; Luxembourg 350 m², more than 50 items), research partners, free samples | Sourced (company description) | Reference 12, 13 https://ocsial.com/rnd https://ocsial.com/partners |
| Opening of the Serbian plant (29 October 2024), 60 t a year, 10,000 m², dispersion capacity equal to 65 GWh, plan to double with a second unit, hydroelectric power only, patents in 46 countries, the ambassador's remark | Sourced (company description) | Reference 5 https://ocsial.com/news/ocsial-opens-first-european-graphene-nanotube-facility |
| Stated capacity of 60 t a year in Serbia, up to 100 t a year in Luxembourg (Graphetron LUX) from 2028, ISO certifications, more than 70 patents | Sourced (company description) | Reference 2 https://ocsial.com/technology |
| New Luxembourg plant (Differdange, 3.63 ha, US$300 million, more than 300 jobs, staged start 2028-2030, funds from an investor group, Serbian capacity to rise fourfold) | Not yet confirmed | Reference 4 https://ocsial.com/en/news/ocsial-launches-development-of-the-worlds-largest-graphene-nanotube-manufacturing-hub-in-luxembourg/ |
| Named as a PowerCo supplier (25 June 2026), for graphite anodes, from Serbia, about one million EVs, consideration of further European capacity | Sourced (company description) | Reference 6 https://ocsial.com/news/ocsial-to-supply-single-wall-carbon-nanotubes-to-powercos-salzgitter-facility/ |
| ELEVATE project (Horizon Europe), the target above 400 Wh/kg, composition of the consortium | Sourced (company description) / target is not yet confirmed | Reference 7 https://ocsial.com/news/ocsial-technology-at-the-core-of-commercial-electric-flights/ |
| Anti-corrosion coatings with PV PAINT (planned launch in the third quarter of 2026) | Sourced / not yet confirmed | Reference 8 https://ocsial.com/news/ocsial-nanotubes-power-pv-paints-new-commercial-anti-corrosion-coatings/ |
| TUBALL technical data (walls, diameter, length, CNT content, metal impurities, moisture, G/D ratio, surface area) with test methods, and the loading comparison | Sourced (company description) | Reference 10, 3 https://tuball.com/about-tuball https://ocsial.com/nanotubes |
| Product range (powders, Tuball BATT, LATEX, COAT_E, MATRIX 201-204) and product forms | Sourced (company description) | Reference 11 https://tuball.com/carbon-nanotube-products |
| Example loadings by use, single-walled versus multi-walled comparison, the "up to 50%" claim and its source note | Sourced (company description) | Reference 3 https://ocsial.com/nanotubes |
| REACH registration (2016) and volume band (100 t a year in 2020), EPA authorization, the IARC statement, workplace measurement case studies, near-term plans (Australia, Canada) | Sourced (company description) | Reference 9 https://tuball.com/pages/product-safety |
| U.S. SNUR: conditions of use for single-walled carbon nanotubes (generic, PMN P-17-257), covering protective equipment, limits on uses and a six-month limit on manufacture. The rule does not name the company | Sourced | Reference 16 https://www.federalregister.gov/documents/2019/12/05/2019-26225/significant-new-use-rules-on-certain-chemical-substances-18-2 |
| Carbon emissions down 35% by 2030, carbon neutral by 2050, example uses | Sourced (company description) / target is not yet confirmed | Reference 14 https://ocsial.com/sustainability |
| The logo image was taken from the logo published on the official website | Sourced | Reference 17 https://ocsial.com/ |
| Sales, profit, R&D spending, shareholders and the basis of the valuation; whether the second Serbian unit is running; the final investment decision in Luxembourg; the relation of the REACH volume to output; the ELEVATE grant amount | Not yet confirmed | Our own organization and reasoning (includes items the primary sources did not confirm; this article) |
| Readings such as "batteries are the main battlefield", "local sourcing and regulatory readiness are the axis", "supplying dispersions and concentrates reduces customers' process burden", and "metal impurities are catalyst residue" | Inference | Reference 4, 5, 6, 10, 11 https://ocsial.com/en/news/ocsial-launches-development-of-the-worlds-largest-graphene-nanotube-manufacturing-hub-in-luxembourg/ https://ocsial.com/news/ocsial-opens-first-european-graphene-nanotube-facility https://ocsial.com/news/ocsial-to-supply-single-wall-carbon-nanotubes-to-powercos-salzgitter-facility/ https://tuball.com/about-tuball https://tuball.com/carbon-nanotube-products |
| The classification of OCSiAl as a "nanomaterial producer" and the four-type grouping | Our calculation | Our own organization and reasoning (includes items the primary sources did not confirm; this article) |
| Technical explanations such as the conductive network, the difficulty of dispersion and the meaning of the G/D ratio | Our calculation | Our own organization and reasoning (includes items the primary sources did not confirm; this article) |
Last updated: 9 October 2026 / Troy Technical
This article is based on OCSiAl's website, press releases, the TUBALL technical pages and the U.S. Federal Register. It uses no market-research estimates or press-based figures. Items marked "Inference" are our reading of the primary sources and are not company disclosures. Product performance values are the company's stated values and cannot be compared with values obtained under different methods and conditions. Company plans and targets are not yet confirmed and are not guaranteed. This article does not advise individual readers on handling or safety of nanomaterials, or on investment decisions.