COMPANY PROFILE / Solid-State Battery
ProLogium (Hui Neng Technology)
― A Taiwanese startup that has been selling batteries since 2013
ProLogium is an exceptional startup in the field of all-solid-state batteries. It has been commercially producing since 2013.、cumulative more than 2.4 million cells shipped, and has a gigafactory in operation in Taoyuan, Taiwan. Meanwhile, sales for 2025 are$29.4 millionremaining, the auditor isthere are significant uncertainties regarding the premise of a going concernand is recorded. In this article, we will unravel why such a seemingly contradictory situation arises, where ‘there are achievements but cash flow is tight’, by using only the Form F-4 submitted to the US SEC by Prologium Holding Inc. (submitted on September 10, 2026) and its official press release as primary information. The final update is on September 30, 2026.
- Understand ProLogium in 30 seconds and its position with solid-state batteries
- About the logo and company name
- Where is this company in the world of solid-state batteries
- Company size (sales are present but the magnitude is small)
- Resources invested in solid-state batteries
- Previous efforts
- Future plans
- What is this company aiming for with solid-state batteries?
- Mapping of collaborations in the field of all-solid-state batteries
- Techniques and methods adopted
- Risks faced by this company
- Glossary / References / Claims and Corresponding References Table
1. Understand ProLogium in 30 seconds and its position with solid-state batteries
(Applying for listing on Nasdaq)Scheduled to go public through SPAC merger as PRLG
(Producing in-house)A few rare startups that have their own gigafactories
Companies working on solid-state batteriesAutomotive manufacturers, battery manufacturers, and startupsof three types. ProLogium is one of theseStartupsHowever, what sets it apart from other startups isthey have already been making and selling batteries for over 10 years. fact Starting from commercial production of smartphone charging cases in 2013, expanding to a second-generation roll-to-roll line in 2017, and gradually scaling up to a gigafactory third-generation line in 2024. F-4 claims that ‘the history of manufacturing and shipping volumes distinguishes us from many other solid-state battery companies.’
On the other hand,The batteries being sold are not for in-car use. Current product sales are ‘batteries for car audio sold to car audio technology companies’, as F-4 himself has stated. Mass production experience exists, but not yet for large cells used in cars——This is the key to reading this company.
2. Regarding logo and company name display
The ProLogium logo is a trademark of the company. This article does not reproduce it using generated images.
images obtained from the official websiteare img/prologium_logo.png displayed as
Note on notation: Holdco registered with SEC is Prologium Holding Inc.(L is lowercase) and, the business company and official website notation is ProLogium(L is uppercase) is used. In this article, we will use the latter. The Chinese characters in Japanese areKinen Technology. Product Name LCB Lithium Ceramic Battery (lithium ceramic battery) is an abbreviation. The company uses this term rather than “all-solid-state battery.” Cell structure name Logithium™ Please be careful not to confuse it.
Official website:https://prologium.com/3. Among the world of all-solid-state batteries, where is this company located?
4. Company size (sales are present but the magnitude is small)
ProLogium’s 2025 forecastNet loss is $648.9 millionHowever, reading this number as ‘lost $600 million’ would be a complete misinterpretation. fact. The majority of the loss isthe fluctuation in the fair value of preferred stocks and warrants(Total $579.55 million) and this isa cash-out accounting lossIt is. Under IFRS, convertible preferred shares are recorded as liabilities and the value of the liability increases as the company’s value rises, which is recognized as a loss. The actual cash that came out isoperating activities for $20 millionIt is nothing more than. When reading the financial statements of a startup, Pure loss is not operating loss and operating cash flowPlease see
| Indicator (thousand dollars) | Fiscal year ending December 2024 | Fiscal Year Ending December 2025 |
|---|---|---|
| Revenue | 6,186 | 2,943 |
| Cost of sales | 37,888 | 22,453 |
| Total operating loss | 31,702 | 19,510 |
| Sales Expenses | 3,419 | 2,005 |
| General Administrative Expenses | 31,106 | 25,261 |
| Research and Development Expenses | 37,817 | 31,714 |
| Operating Loss | 104,044 | 78,490 |
| Fair Value Changes of Preferred Stock and Warrants (Non-Cash) | 499,444 | 579,549 |
| Current Period Loss | 606,706 | 640,893 |
| Cash outflow from business activities | ― | 20,000 |
| Items (December 31, 2025) | Amount |
|---|---|
| Cash and Cash Equivalents | $126.5 million |
| Financial Assets Measured at Historical Cost | $117.2 million |
| Unused Credit Lines | Approximately $30.4 million |
| Total Assets | $456.81 million |
| total debt | $2.235 billion (most of which are convertible preferred shares with claims on assets) |
| working capital | minus $1.8941 billion |
| cumulative losses | $1.8469 billion |
F-4 clearly states. ‘The management team may raise significant doubts about the premise of a continuing business’important uncertainties existand concluded, with similar explanations in the auditor’s report. fact。
The cause is not performance.but the design of preferred shares.In the preferred shares issued in past capital raisings,there is a redemption claim rightis attached, and the right to exercise it has become possible, the company isWe have not obtained sufficient consent for extending the repayment deadline.. There is a possibility that it cannot be paid if requested, so there are doubts. The solution proposed by the company isCompletion of SPAC mergerOther fundraising, and negotiations to extend repayment rights. Without understanding this point, the current location of ProLogium company cannot be read.
5. Resources invested in solid-state batteries
| Resource types | Content | Classification |
|---|---|---|
| person | Employees839 people(March 31, 2026). Manufacturing 441 people (52.6%), Research and Development / Technology 195 people (23.2%), Management 185 people (22.1%), Sales 18 people (2.1%).97.7% in Taiwan, 2.3% in France | fact |
| Gold (research and development expenses) | Fiscal Year Ending December 2025 31.71 million dollars/ 2024: 378.2 million dollars | fact |
| cumulative procurement amount | The total amount is not explicitly stated in the documents. The issuance of preferred stock has progressed to Series E+, and its fair value constitutes a large portion of the total debt of $2.2 billion | Unconfirmed |
| investors (automobiles) | Mercedes-BenzandVinFastfrom strategic investments. It received warrants related to series E+ in January 2022 from Mercedes-Benz AG for 295,244 units. | fact |
| Investors (others) | shareholders holding more than 5% of the shares are SBCVC FUND IV (19.0%), founder Vincent Yang (18.1%), New Epoch Capital (9.0%), New Horizon (8.0%), and GEC HOLDINGS (7.4%). In addition,Kyushu Electric Powerannounced in September 2026 that it will make strategic investments.Korean steel and battery materials manufacturer(Name not disclosed) also made strategic investments | fact |
| mass production equipment (Taiwan) | in TaoyuanTaoke (Taoyuan) Gigafactoryother Zhongli and Nanyuan locations. Taoke is Gen 3 for electrodes1.0GWhand cells0.5GWhdesign capacity. By 2030, the cell will also reach 1.0 GWh | fact |
| mass production equipment (France) | a second gigafactory in Dunkirk.groundbreaking for the first phase in February 2026at completion of design capacity4.0GWh(gradually reached by 2030), the maximum design capacity on the site is44.0GWh | fact |
| public funds | from the French governmentup to approximately 1.375 billion euroshas been approved for assistance.but with conditions on milestone achievementand there is a possibility of repayment or clawback if not achieved | fact |
| Collaboration with universities and research institutions | France’sCEA(Atomic Energy and Alternative Energies Agency) and MoU, development agreement, sample verification. In May 2024established the world’s first R&D centerin Paris-Saclay | fact |
| Intellectual Property | as of July 31, 2026registered 1,060 items+ Application146 itemsand total1,206 items | fact |
(1) Cash on Hand= 126.5 million dollars + financial assets 117.2 million dollars. (2) Annual Cash Outflow＝Operating approximately $20 million (but factory construction investment is excluded). (3) Is it invested by an automobile manufacturer?＝Mercedes-Benz and VinFast are investors. (4) Does it have its own mass production facilities?＝Operates in Taiwan, under construction in France Calculations in this article。
(4) Having this is both a strength and a weakness for the company. Just as with QuantumScape or Solid Power, if they do not have factories, cash outflow would be less steep, but having factories would make it more. construction costs and depreciation and fixed costsare multiplied. Actually, the cost of sales in 2025 was $22.45 million, which is 7.6 times the sales of $2.94 million7.6 timesAnd, The costs of idle equipment are becoming a heavy burden Calculations in this article. F-4 itself also lists ‘the possibility that low operating rates will continue to result in costs and negative net sales profits’ as a risk.
6. Previous Efforts
| period | incident | Meaning |
|---|---|---|
| 2006 | Established in Taiwan | This is one of the oldest startups in this field |
| 2012 | Logithium™ Cell ArchitectureThe core design and patent foundation were completed. Defined the LCB platform. | A configuration that combines a ceramic separator and a frame structure. It has been used consistently until now. |
| 2013 | Began commercial production in the first generation (sheet-type) lineFrom niche markets such as smartphone charging cases, wearable devices, medical equipment, etc., with high profit margins | Chose a sequence where manufacturing costs were covered by commercial orders |
| 2017 | TheRoll-to-RollIntroduce a line | Transition from batch production to continuous production. Improving automation and yield |
| January 2022 | Awarded 295,244 warrants related to series E+ to Mercedes-Benz AG | The beginning of a capital relationship with an automobile manufacturer |
| January 2024 | Taoke Gigafactory announced the world’s first commercial factory to publicly reveal its mass production line for next-generation batteriesit was announced | The proof of ‘not being a lab’s technology’ was conducted in the form of public disclosure. |
| May 2024 | Established the first overseas R&D center in Paris-Saclay | Technology support hub for the European market |
| February 2026 | Commenced construction of the first phase of the second gigafactory in Dunkirk (France) | Assumption that the French government will provide a maximum of 1.375 billion euros in subsidies |
| May 27, 2026 | Translational Development Acquisition Corp. (Nasdaq: TDAC) and merger agreement. Premoney valuation of $380 million, with earnout included up to a maximum of $400 million. Minimum cash condition of $250 million | A funding source to resolve the issue of repaying preferred shares |
| September 2, 2026 | Announced the mass production start of Gen 3.5.185.4 Ah large cell tested by TÜV381Wh/kg・903Wh/Lto confirm. UL Solutions’ test for the full solidification classification criteria of China GB/T 43568-2026 (weight loss less than 0.5% after vacuum at 120°C for 6 hours)less than 0.05% | supported by third-party testing |
| September 9, 2026 | Kyushu Electric Power is considering strategic investment. Also continuing to consider battery module manufacturing in Japan | connection to Japan’s industrial ecosystem |
7. Future Plans
860〜940Wh/L100% silicon anode composition. Proven range
Regarding North America,Inlay(half-finished product consisting of the cathode, anode, ceramic separator, and electrolyte) is made at our own factories in Asia or EuropeIn the United States, it is mentioned that they are considering a model where customers assembleIt is stated that they are considering a model where customers assemble fact. They are looking for a way to enter the U.S. market without building another factory.
Next, all of these are not mentioned in the official release of F-4 Unconfirmed / Future。
onboard large cellsthe start-up period for mass production／outstanding orders/ cell price quantity supply contract with Mercedes-Benzconclusion date/ Kyushu Electric Power’sinvestment amount/ strategic investorcompany name/ total accumulated acquisition amount. Additionally, there are many market size forecasts for F-4, butthe source is the estimate of a research companytherefore, they are not adopted in this article.
8. What does this company aim to achieve with solid-state batteries?
This part includes information that the company has not directly stated.Inferred from primary sources within the scope of what can be read.Along with the basis, I will write it down.
| What can be read | primary information | Classification |
|---|---|---|
| differentiation axis toPerformance is not about ‘what can be made’.are being placed | F-4 and press releases also come out first with the production line’s public disclosure, cumulative shipment of 2.4 million units, and reducing the number of processes from 17 to 11, these are facts from the manufacturing side. ‘We did not jump from pilots to GWh in one leap but gradually expanded through commercial production,’ it is stated | fact |
| EuropeSecond basetrying to do | The R&D center is in Paris-Saclay, the second factory is in Dunkirk, automation is by Schneider Electric, materials are from Arkema, and research institutions are CEA. All of these are in France. | speculation |
| Not relying solely on in-vehicle applications | Aerospace (Elysian Aircraft), construction machinery (Kyushu Electric Power, Nakayama Ironworks), backup power for AI data centers, robotics, ships, electric two-wheelers and more, with more non-automotive collaborations than automotive | fact |
| Ipo isGrowth capital at the same time as a solution to the preferred stock issue | The cause of doubt about the continuation of the company is the right of repayment for preferred shares, and the top solution proposed by the company is the completion of SPAC merger | speculation |
| The term ‘all-solid’Strategically focused | While calling their products ‘lithium ceramic batteries’, they demonstrated in a third-party test that by September 2026, according to China’s GB/T 43568-2026 standard, they can be classified as ‘all-solid’ | speculation |
On September 2, 2026, ProLogium announcedThey had UL Solutions test their products using the method specified in China’s national standard GB/T 43568-2026There is significance to this fact. This standard classifies as a full-solid battery if the weight loss after being left in vacuum at 120°C for 6 hours is less than 0.5%.weight loss is less than 0.5%the following thinking is adopted: The weight loss occurs because there are volatile liquid components remaining inside the cell. ProLogium’s cells wereless than 0.05%1/10th of the standard.
Why is this test necessary? In this field, many products that claim to be ‘full-solid’ have a small amount of liquid components remaining at the interface (such as QuantumScape and Factorial’s FEST). There is no way to distinguish them from the outside, so the definition itself becomes a tool for competition.. ProLogium presented numbers from an independent organization. We judged that our company would be on the advantageous side based on that lineThis is how this article reads Unconfirmed / FutureHowever, the company has not explained it in detail; this is an interpretation of this article.
9. Mapping of solid-state battery collaborations
10. Technology Approach Used
| Item | Content |
|---|---|
| name | Lithium Ceramic Battery (LCB). The cell structure is named Logithium™(Completed the design and patent base in 2012) |
| Separator | 100% Ceramic. Frame structure is set around the perimeter to isolate the tabs and combine sealing and insulation |
| Manufacturing Techniques | Ceramic separatoris made using roll-to-roll coating.Ordinary ceramic requires ultra-high temperature sintering, is brittle, and is difficult to mass-produce and scale up |
| Gen 3.5 (Current Mass Production) | 185.4Ah large cell381Wh/kg・903Wh/L(TÜV test). Weight loss after 6 hours at 120°C in vacuumless than 0.05%(UL Solutions test) |
| Gen 4 (Next Generation) | Superfluid Inorganic Electrolyte+100% Ceramic Separator + Embedded ElectrolyteActive Safety Mechanism (ASM). NCM955 positive electrode and 100% silicon negative electrode compatible |
| Gen 4’s demonstration value | 100% Silicon Negative Composition360〜400Wh/kg、860〜940Wh/L |
| Future Roadmap | Lithium metal/Anode-free configuration430〜470Wh/kg、1,000〜1,100Wh/Las the target.Uncommercialized |
| number of processes | conventional laminate cell manufacturingreducing the main process from 17 to 11 |
what this company should be most praised for is not the battery performance values The ceramic separator can be coated in a roll-to-roll processis one point Calculations in this article. Ceramic is typically formed from powder and then hardened at extremely high temperatures. This method results inHard and brittle plateand, when it is large in area, it will crack due to its own weight or thermal stress, and cannot be continuously rolled up. The battery separator is a thin film of tens of µm thick and must be made without defects for hundreds of mm in width and hundreds of m in length continuously. ‘Making it with ceramic’ and ‘mass production’ are fundamentally almost incompatible requirements.
F-4 resolves this contradictionwith a high-efficiency roll-to-roll coating processIt is explained that it was solved. If we create a film by painting instead of sintering, we can retain flexibility, roll it up, and make large cells as well. It makes sense to read that the number of main processes could be reduced from 17 to 11 because the processes associated with sintering can be eliminated. Unconfirmed / Future While other companies are competing on ‘material performance’, this company‘The device and conditions for continuously applying thin coatings to the material’where they are competing—— It seems to be a winning strategy that the company has been producing in mass production since 2013.
11. The risks this company faces
| Risks | Content | Classification |
|---|---|---|
| material uncertainties regarding the going concern assumption | The preemptive right of the preferred stock can be exercised, and there is insufficient consent for extension. This is also explained in the auditor’s report. | fact |
| Sales are small and customers are biased | Sales in 2025 will be $2.94 million, down by half from the previous year. Focusing on a few customers and programs | fact |
| Negative gross margin due to low utilization | In 2025, the cost of goods sold will be seven times the sales. The company itself lists ‘idle-capacity cost and continuing negative operating income’ as risks | fact |
| Risk of SPAC merger not being completed | Minimum cash condition is $250 million. Additional funding may be needed depending on the repayment by SPAC shareholders | fact |
| Conditions for French subsidies | A maximum of approximately 1375 million euros is conditional on milestones and production capacity, with the possibility of repayment or clawback if not met | fact |
| Production is concentrated in Taiwan | Nearly all current production capacity is located in Taiwan. Also, 97.7% of employees are Taiwanese | fact |
| Criminal cases related to the leakage of trade secrets | It was reported that an ex-employee provided the company’s proprietary information to the outside in 2022, and in July 2026, the Taiwan Taoyuan Public Prosecution Office filed charges against the individual for violating the Trade Secrets Act.The company is on the plaintiff sideHowever, it is projected to take 4-5 years to reach a conclusion | fact |
| The weight of having a factory | Until mass production orders for in-car use increase, fixed costs related to equipment continue to suppress profits. | speculation |
12. Glossary
- All-solid-state battery
- A battery with electrolyte in solid form instead of liquid. It is said to have a low risk of fire and be strong against high voltage and high temperature.
- Lithium Ceramic Battery (LCB)
- ProLogium uses this name for its products. It employs 100% ceramic separators.
- Inlay
- A semi-finished product consisting of the positive electrode, negative electrode, ceramic separator, and electrolyte. There is a concept to transport this and assemble it on-site.
- Roll-to-Roll
- A method of processing materials by continuously flowing them as a roll. It is faster and cheaper than the leaflet format.
- GB/T 43568-2026
- China’s national standard. The concept adopted is to classify as a full-solid-state battery if the weight loss after being placed in vacuum at 120°C for six hours is less than 0.5%.
- Wh/kg・Wh/L
- Energy per unit mass or volume. It indicates how much electricity can be stored with the same weight and size.
- continuing enterprise assumption
- The accounting premise that the company can continue its business. If there is any doubt, it will be noted in the audit report.
- Form F-4
- A registration statement submitted to the U.S. SEC by a foreign company when issuing shares in the United States. It carries legal responsibility.
AI-generated conceptual diagram13. Source
- Prologium Holding Inc. Form F-4/A (U.S. SEC filing, September 10, 2026). Description of business content, technical approach, production sites and design capabilities, employee numbers and breakdown, number of patents, financial performance for the fiscal years ending December 2024 and 2025, cash on hand, assumptions regarding the going concern premise, affiliations and contract terms, shareholder structure, conditions for SPAC merger, and litigation. https://www.sec.gov/Archives/edgar/data/2137754/000119312526387847/d11069df4a.htm
- ProLogium Official press release ‘ProLogium Begins Mass Production of High-Energy-Density All-Solid-State Battery, Reaching 381 Wh/kg and 903 Wh/L’ (September 2, 2026). Start of mass production of Gen 3.5, results of third-party testing by TÜV and UL Solutions, evolution of manufacturing technology. https://prologium.com/prologium-begins-mass-production-of-high-energy-density-all-solid-state-battery-reaching-381-wh-kg-and-903-wh-l/
- ProLogium Official press release ‘Kyushu Electric Power Advances Strategic Investment in ProLogium’ (September 9, 2026). Strategic investment by Kyushu Electric Power and consideration for battery module manufacturing in Japan. https://prologium.com/kyushu-electric-power-advances-strategic-investment-in-prologium-deepening-collaboration-in-next-generation-batteries-and-energy-sector/
- ProLogium Official website ‘About ProLogium’ (company overview, executive team). https://prologium.com/about/
- ProLogium Official website (company name, source of logo image). https://prologium.com/
14. Table of Correspondence between Claims and Sources
| Main Argument in the Body | Classification | Sources |
|---|---|---|
| Official name, headquarters location, founding year, non-listed status and planned SPAC merger | fact | Source 1 https://www.sec.gov/Archives/edgar/data/2137754/000119312526387847/d11069df4a.htm |
| 2024 fiscal year and 2025 fiscal year ending December sales, cost of sales, operating expenses, operating loss, net loss for the period | fact | Source 1 https://www.sec.gov/Archives/edgar/data/2137754/000119312526387847/d11069df4a.htm |
| The majority of the net loss is due to changes in the fair value of preferred shares and warrants, which are non-cash items | fact | Source 1 https://www.sec.gov/Archives/edgar/data/2137754/000119312526387847/d11069df4a.htm |
| Operating cash outflows of $20 million in 2025, cash of $126.5 million, financial assets of $117.2 million, credit limit of $30.4 million | fact | Source 1 https://www.sec.gov/Archives/edgar/data/2137754/000119312526387847/d11069df4a.htm |
| There are significant uncertainties under the assumption of a continuing business, and the cause is the redemption claim of preferred shares | fact | Source 1 https://www.sec.gov/Archives/edgar/data/2137754/000119312526387847/d11069df4a.htm |
| The comment that the cost of sales is seven times the sales revenue | Calculations in this article | The values cited in reference 1 have been divided by this article |
| Breakdown of employees (839 people) by function and region | fact | Source 1 https://www.sec.gov/Archives/edgar/data/2137754/000119312526387847/d11069df4a.htm |
| Composition of the three locations in Taiwan and Taoke’s design capacity (electrode 1.0GWh, cell 0.5GWh, to 1.0GWh by 2030) | fact | Source 1 https://www.sec.gov/Archives/edgar/data/2137754/000119312526387847/d11069df4a.htm |
| Dunkirk factory to start construction in February 2026, Phase 1: 4.0 GWh, maximum 44.0 GWh, French government subsidy up to approximately 1.375 billion euros | fact | Source 1 https://www.sec.gov/Archives/edgar/data/2137754/000119312526387847/d11069df4a.htm |
| Cumulative shipments exceed 2.4 million units, automotive samples about 10,000 units, patents 1,206 | fact | Source 1 and 2 https://prologium.com/prologium-begins-mass-production-of-high-energy-density-all-solid-state-battery-reaching-381-wh-kg-and-903-wh-l/ |
| Mass production start of Gen 3.5 with 381Wh/kg・903Wh/L (TÜV test), weight reduction less than 0.05% (UL Solutions test) | fact | Source 2 https://prologium.com/prologium-begins-mass-production-of-high-energy-density-all-solid-state-battery-reaching-381-wh-kg-and-903-wh-l/ |
| The configuration and demonstration values (360~400Wh/kg, 860~940Wh/L) of Gen 4, as well as its future target (430~470Wh/kg), are not yet commercialized. | fact | Source 1 https://www.sec.gov/Archives/edgar/data/2137754/000119312526387847/d11069df4a.htm |
| Reducing the main process from 17 to 11, and ceramic coating for roll-to-roll | fact | Source 1 https://www.sec.gov/Archives/edgar/data/2137754/000119312526387847/d11069df4a.htm |
| Mercedes-Benz and VinFast are in discussions regarding strategic investments and joint development, as well as mass production supply | fact | Source 1 https://www.sec.gov/Archives/edgar/data/2137754/000119312526387847/d11069df4a.htm |
| MoU/development agreement/sample validation with Ford・OPmobility・Rimac・FEV Group・CEA | fact | Source 1 https://www.sec.gov/Archives/edgar/data/2137754/000119312526387847/d11069df4a.htm |
| Joint venture with Kyushu Electric Power・Nakayama Iron Works and 24V battery modules, as well as strategic investment by Kyushu Electric Power | fact | Source 3 https://prologium.com/kyushu-electric-power-advances-strategic-investment-in-prologium-deepening-collaboration-in-next-generation-batteries-and-energy-sector/ |
| Partnership with Schneider Electric・Arkema・Elysian Aircraft and strategic investment from South Korean steel and battery materials manufacturers | fact | Source 1 https://www.sec.gov/Archives/edgar/data/2137754/000119312526387847/d11069df4a.htm |
| Shareholder structure including more than 5% (SBCVC 19.0% etc.) and warrants issued to Mercedes-Benz | fact | Source 1 https://www.sec.gov/Archives/edgar/data/2137754/000119312526387847/d11069df4a.htm |
| SPAC merger conditions (pre-money valuation of $3.8 billion, minimum cash condition of $250 million) | fact | Source 1 https://www.sec.gov/Archives/edgar/data/2137754/000119312526387847/d11069df4a.htm |
| Charges of Trade Secrets Act Violation against Former Employees (July 2026) and the Company Acting as the Plaintiff | fact | Source 1 https://www.sec.gov/Archives/edgar/data/2137754/000119312526387847/d11069df4a.htm |
| Founding Year, Management Team, Manufacturing Technology Generations (Sheet-fed in 2013, Roll-to-Roll in 2017, Gigafactory in 2024) | fact | Source 2.4 https://prologium.com/about/ |
| Classification of three types of all-solid-state batteries (Automotive / Battery / Startup) | Calculations in this article | Arrangement by this article. Company names are exemplified from the 23 companies in this series |
| The production start period for large cells for in-vehicle use, remaining orders, cell price per unit, amount of investment by Kyushu Electric Power, and the names of South Korean investors | Unconfirmed / Future | Not mentioned in references 1-3. Do not adopt values based on news reports. https://www.sec.gov/Archives/edgar/data/2137754/000119312526387847/d11069df4a.htm |
| Total cumulative procurement amount | Unconfirmed / Future | Since the total amount is not mentioned in Reference 1, this article does not estimate it. https://www.sec.gov/Archives/edgar/data/2137754/000119312526387847/d11069df4a.htm |
| Market size forecast value | Unconfirmed / Future | Although it is recorded in Reference 1, the source is an estimate by a research company.This article does not adopt |
| The interpretation that they are trying to establish Europe as their second base of operations | speculation | The interpretation based on the fact that R&D facilities, the second factory, and partners are all in France |
| The listing is also read as a solution to the preferred stock issue. | speculation | The interpretation of this article based on the company’s stated solutions in the section regarding the continuation of the business. |
| It is interpreted that they are being strategic about the use of the term ‘all-solid’. | speculation | The interpretation of this article based on the fact that a third-party organization was tested according to GB/T standards. |
| It is read as having reduced the number of processes by avoiding sintering. | speculation | The interpretation of this paper based on the general properties of ceramic processing. The company has not explicitly stated the reason. |
| The evaluation that continuous coating is a fundamental strength of ceramics. | Calculations in this article | Explanation by this paper |
| The risk of fixed cost burden due to having a factory | speculation | The interpretation of this paper based on the ratio of selling price and cost of goods sold |
Last Updated: September 23, 2026 / Troy Technical
The numbers in this article are all based on data submitted by Prologium Holding Inc. to the U.S. Securities and Exchange Commission (SEC) in Form F-4/A, as well as from its official press releases. We have not used the estimates cited in the Form F-4 or the values reported in the media. The ‘estimates’ noted in this article are interpretations derived from primary information within the text of this article and do not reflect the company’s official disclosures.