# EDGAR Filing Document

**Accession Number:** 0002137754
**File Stem:** 0001193125-26-252878
**Filing Date:** 2026-6
**Character Count:** 41999
**Document Hash:** 343b3defb34081e823d3d01d9ae33d22
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-252878.hdr.sgml**: 20260603

**ACCESSION NUMBER**: 0001193125-26-252878

**CONFORMED SUBMISSION TYPE**: 425

**PUBLIC DOCUMENT COUNT**: 35

**FILED AS OF DATE**: 20260602

**DATE AS OF CHANGE**: 20260603

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Translational Development Acquisition Corp.
- **CENTRAL INDEX KEY:** 0001926599
- **STANDARD INDUSTRIAL CLASSIFICATION:** BLANK CHECKS [6770]
- **ORGANIZATION NAME:** 05 Real Estate & Construction
- **EIN:** 000000000
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 425
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42451
- **FILM NUMBER:** 261059317

**BUSINESS ADDRESS:**
- **STREET 1:** 52 E 83RD ST.
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10028
- **BUSINESS PHONE:** (413) 204-2769

**MAIL ADDRESS:**
- **STREET 1:** 52 E 83RD ST.
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10028
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Prologium Holding Inc.
- **CENTRAL INDEX KEY:** 0002137754

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 425

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** NO. 6-1, ZIQIANG 7TH RD.
- **STREET 2:** ZHONGLI DIST.
- **CITY:** TAOYUAN CITY
- **PROVINCE COUNTRY:** F5
- **ZIP:** 00000
- **BUSINESS PHONE:** 886-3-4521991

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** NO. 6-1, ZIQIANG 7TH RD.
- **STREET 2:** ZHONGLI DIST.
- **CITY:** TAOYUAN CITY
- **PROVINCE COUNTRY:** F5
- **ZIP:** 00000

Filed by Prologium Holding Inc.

Pursuant to Rule 425

under the Securities Act of 1933, as amended

and deemed filed pursuant to Rule 14a-12

under the Securities Exchange Act of 1934, as amended

Subject Company: Translational Development Acquisition Corp.

Commission File No.: 001-42451

Date: June 2, 2026

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This document contains confidential information regarding Prologium Holding Inc. (the "Company") and its subsidiaries, and their businesses. Neither the Company, nor its shareholders, any of its holding companies, subsidiaries, associated undertakings or controlling persons, nor any of their respective directors, officers, partners, employees, agents, representatives or advisers makes any representation or warranty, express or implied, as to the accuracy or completeness of the information contained in this document nor as to the reasonableness of any assumption contained herein or therein and any liability therefore (including in respect of direct, indirect or consequential loss or damage) is expressly disclaimed. Nothing contained herein or therein is, or shall be relied upon as, a promise or representation, whether as to the past or the future. The Company does not undertake or expect to update or otherwise revise this document or any other materials supplied. No information set out in this document will form the basis of any contract. Any prospective investor will be required to acknowledge in the purchase contract that it has not relied on, or been induced to enter into such agreement by, any representation or warranty, save as expressly set out in such agreement. This document and any oral statements made in connection with this presentation do not constitute an offer or invitation for the sale or purchase of the securities or any of the assets, business or undertaking described herein, nor shall there be any sale, issuance or transfer of any securities in any jurisdiction where, or to any person to whom, such offer, solicitation or sale may be unlawful under the laws of such jurisdiction. This presentation does not constitute either advice or a recommendation regarding any securities. Forward-Looking Statements All statements in this presentation other than statements of historical fact, including, but not limited to, statements regarding the Company's future operating results, financial position, business strategy, addressable market, anticipated benefits of its technologies, and plans and objectives for future operations and offerings are "forward-looking statements" and can often be identified by the use of terminology such as "may," "will," "estimate," "intend," "continue," "believe," "expect," "anticipate," "should," "could," "potential," "projection," "forecast," "plan," "trend," "assumption," "opportunity," "predict," "seek," "target," or similar terminology, although not all forward-looking statements contain these identifying terms. Any statements that refer to expectations, projections or other characterizations of future events or circumstances, including projections of market opportunity, number of customers and market share, the capability of the Company's technology, Company's business plans including its plans to expand globally, any benefits of Company's partnerships, are also forward-looking statements. These forward-looking statements are based upon the Company management's current expectations, assumptions and estimates as of the date of this presentation, are subject to change and are not guarantees of future results or the timing thereof. While the Company may elect to update these forward-looking statements in the future, each is not under any obligation, and expressly disclaims any duty, to update or otherwise revise the information after the date of this presentation, whether as a result of new information, new developments or otherwise. The Company cannot assure you that the forward-looking statements in this presentation will prove to be accurate. These forward-looking statements are subject to a number of risks and uncertainties, including, among others, the occurrence of any event, or change or other circumstance that could delay; the ability to execute on its business strategy and the ability to develop and commercialize its solid-state battery technology; the ability to accurately estimate the future supply and demand for its batteries; the ability to respond rapidly to emerging technology trends; the ability to compete effectively and the ability to manage growth; changes in applicable laws or regulations; international trade disputes, including threatened or implemented tariffs by the U.S. and threatened or implemented tariffs by foreign countries in retaliation; the ability of Company to execute its business model, including market acceptance of its planned products and services; risks associated with Company's efforts to commercialize its products; Company's ability to maintain its existing agreements with third parties and to negotiate and enter into new definitive agreements on favorable terms, if at all; the impact of competing products on Company's business; intellectual property-related claims against Company; Company's dependence upon its key personnel and ability to attract and retain such personnel and additional qualified personnel; and Company's ability to source raw materials forits products. There may be additional risks that the Company presently does not know or that the Company currently believes are immaterial that could also cause actual results to differ from those contained in the forward-looking statements. In light of the significant uncertainties in these forward-looking statements, you should not regard these statements as a representation or warranty by Company or its respective directors, officers or employees or any other person that Company will achieve its objectives and plans in any specified time frame, or at all. The forward-looking statements in this presentation represent the views of Company as of the date of this presentation. Subsequent events and developments may cause those views to change. Except as required by applicable law, the Company does not have any duty to, and does not intend to, update or revise the forward-looking statements in this presentation after the date of this presentation. You should, therefore, not rely on these forward-looking statements as representing the views of Company as of any date subsequent to the date of this presentation. Use of Projections The projections, estimates and targets of the Company's future performance and the future performance of the markets in which it competes in this presentation are forward-looking statements that are based on assumptions that are inherently uncertain and subject to a wide variety of significant business, economic, regulatory and competitive risks and uncertainties, many of which are beyond the Company's control, that could cause actual results to differ materially from those contained in such projections, estimates and targets. While all projections, estimates and targets are necessarily speculative, the Company believes that the preparation of prospective financial information involves increasingly higher levels of uncertainty the further out the projection, estimate or target extends from the date of preparation. Such projections, estimates and targets are included for illustrative purposes only and should not be relied upon as necessarily being indicative of future results. The inclusion of projections, estimates and targets in this presentation should not be regarded as an indication that the Company or its representatives, considered or consider the financial projections, estimates and targets to be a reliable prediction of future events. The independent auditors of the Company did not audit, review, compile or perform any procedures with respect to the projections for the purpose of its inclusion in this presentation, and accordingly, they did not express an opinion or provide any other form of assurance with respect thereto for the purpose of this presentation. Use of Data This presentation also contains estimates and other statistical data made by independent parties and by the Company relating to competitors, customers, suppliers, partners, market participants, third-party technologies, market size and growth and other industry data. These data involve a number of assumptions and limitations, and you are cautioned not to give undue weight to such estimates. The Company has not independently verified the statistical and other industry data generated by independent parties and contained in this presentation and, accordingly, cannot guarantee their accuracy or completeness. Such information may not be directly comparable across companies due to differences in definitions, methodologies, testing conditions, reporting periods, product configurations and other factors.

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Years of Battery Development YE2025 Patents Fast Charging -20°C Performance From 5 to 80% at 5C Retention $M USD Raised to Date Gen 4: Superfluidized (Solid-State 2.0) Taoyuan, Taiwan Dunkirk Gigafactory 5-Pillar Framework Employees In Patents Automotive Samples Delivered YE2025 Patents Cells Delivered to Global Clients Since 2013 Global Enterprises Industrial and R&D Partners 70% Active Patents Series E Investors

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~30% CAGR in ProLogium's Patent Portfolio ProLogium Leads in Total Patent Scale & Quality 17% of ProLogium's Patent Are Ranked A(1) (Normalized to 100%) Active Patent % Total Patent ProLogium 17% Active patent: 70% 100% 1,250\* 1,052 50% Samsung 13% LG Chem 12% 600 26% BYD 8% 22% 31 20% CATL 4% 2012 2022 2025 2026 \* Planned by the end of 2026. (1) Based on value metrics including commercialization actionability, market conditions and industrial positioning of the invention by 3rd party patent platform in 2023.

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Dunkirk, France Taoyuan, Taiwan ? 2nd SSB ? Taoke Factory Gigafactory ? SSB Gigafactory ? (Under ? (Operating) nd Construction) 2 Factory Further Expansion 1st Factory North America Europe APAC US Expansion: Dunkirk Gigafactory: Taoke Gigafactory: • Initiated discussions with U.S. and Canadian • Strong government support • The world's 1st SSB gigafactory government agencies • Targeting commercial operations by YE2029 • 2025 Production Capacity: 0.5 GWh • Conducting site selection across multiple • 2030E Production Capacity: 4.0 GWh • 2030E Production Capacity: >1.0 GWh U.S. states supply from Asia/EU; Partner assembly • Max Design Capacity: 44.0 GWh • Max Design Capacity: 3.0 GWh • Inlay in U.S.

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2.05GWH 2032 12.00GWH 2032 1.05GWH 2031 4.00GWH 2031 2032E 2.05 12 1.05GWH 2030 4.00GWH 2030 2031E 1.05 4 2029 2029 2030E 1.05 4 0.80GWH 0.75GWH 2029E 0.8 0.75 2027 Ground 2026—0.80GWH Breaking Event 2027E 0.8 0.55GWH 2024 2024 2024A 0.55 French 2017 Projects Commenced Taiwan 0.05GWH 2017A 0.05 France 2013 0.01GWH 2013A 0.01 Note: Anticipated production capacities are management estimates and are subject to change due to available financing and other factors outside of the Company's control.

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2006 2025 2030+ Portable Accessories, Semiconductor, AGV, Premium Vehicle Emerging Wearables Automotive Markets Markets Data Center Aerospace ESS Robotics Small Size, ~30 Ah Large Size, ~100 Ah Flexible Lithium Ceramic Battery Pouch Lithium Ceramic Battery Pouch Lithium Ceramic Battery Large Lithium Ceramic Battery Cell Size

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120% 20% 2021 2025 PHEV & EREV BEV Modulization design=> Repairable Renewed BEV 2018 2019 2020 2021 2022 2023 2024 2025 Growth Sufficient fast 5~8 mins charge point charge for 300 km BEV Healthier BEV Industry CTP/CTB/CTC design=> Not Repairable More High turnover investment rate Charging Infra 2017 2018 2019 2020 2021 2022 2023 2024 2025 Profitable CPOs Source : Bloomberg, recurrent

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Si: 350~400Wh/kg Li metal/Anode Less : 400~500Wh/kg Fast Charging: =5~8.5mins (5~80%)@400V High Power: /=10C~15C Low temp: @-20C >/=90% retention of RT No Thermal Runaway at ARC test from room temperature to 300~500oC degree Process: simple is best Facility Requirement: Low Dry Room requirement BOM + Manufacturing + Pack Design

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In a thermal event, the Ionic migration of the 100% Silicon Anode Perfect but dangerous materials cathode releases oxygen, electrolyte fundamentally like NMC 955 cathode, 100% which can react violently determines how efficiently silicon or even Li-metal anode with lithium metal formed at & uniformly Li+ migrate in 360-400 Wh/kg can be applied only when safety the anode and with a rechargeable battery – is ensured. Excellent electrical flammable electrolyte cycle life, low temperature Li-metal Anode(1) performance enables thick film solvents, leading to rapid fire performance, fast charging process for even higher energy or explosion. & thermal stability. density compared to 430-470 Wh/kg conventional limit of 280Wh/kg. (1) Post-Gen 4 technology on Company development roadmap.

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Active Safety Mechanism by ProLogium. Safety TRIPLE Mechanism Fully inorganic, non-flammable 100% ceramic separator Superfluidized All Inorganic SSE solid electrolyte, replacing the withstands much higher automatically decomposes in ASM flammable liquid electrolytes temperatures than PP/PE components when exposed to high present in conventional lithium-ion separators, preventing internal temperatures, stabilizing the batteries short circuits and propagation cathode and the anode, preventing thermal runaway Voltage Temperature 5.0 305 4.0 245 3.0 185 PE / PP 2.0 125 1.0 65 ProLogium separator 0.0 5 0 600 1200 1800 2400 3000 3600 4200 4800 5400

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?

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Tests Mechanism Ni4+-Driven Surface Activation with Ni4+ / O2 Reactive Lattice Oxygen S Sulfide Electrolyte O Oxidation P 2 Formation of Reactive Li Species Li vapor-like reactive species Violent Thermal Runway , near-incandescent Magenta hue Lithium thermal reaction Source : Internal testing, Company analysis based on publicly available literature, including "A critical outlook for large-scale all-solid-state batteries"(Joule 2025). Certain results have been reproduced or interpreted based on published methodologies.

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Resistance Across Temperatures on Ceramic Separator Temperature Room Temp. 50oC 150oC 250oC 300oC Resistance 24 24.5 24.8 25.5 26 (mega ohm) Surface change The ceramic separator delivers unmatched mechanical strength, even in cases of severe Before Formation After Formation outside impact, such as Hammer Pouch Before Formation After Formation

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Temperature (°C) 800 700 600 500 400 300 200 100 3rd party tested 0 0 1,800 3,600 5,400 7,200 9,000 10,800 Time (Minute) Thermal runaway No thermal runaway Self ASM(4) Stable Gen 4 Discharge Activating Phase Conventional Conventional Liquid(1) Next Generation 2.0 V(Full Cell) = VCAM-VAAM ? 3 V 5.0 305 CAM = CAM Next Generation 1.0 4.0 245 C) Si-Li Alloy = Si-Li Alloy 3V ° ((2) (V) 3.0 185 Solid Liquid ProLogium Gen 4 is the first and only cell to Voltage 2.0 125 V(Full Cell) = VCAM'-VAAM' ? 1 V CAM = CAM' (Different Crystalline) complete ARC testing without thermal runaway 1.0 65 Temperature Si-Li Alloy ? Si-Li-X Compound Solid Sulfide, LPSC(3) 1V in the 40-year history of lithium batteries. 0.0 5 0 1800 3600 5400 Time (Min) Note: Accelerating Rate Calorimeter (ARC) chart reproduced based on published academic literature. (1) Key Characteristics for Thermal Runaway of Li-ion Batteries, Energy Procedia 158 (2019): 4684-4689. (2) In situ-polymerized lithium salt as a polymer electrolyte for high-safety lithium metal batteries. (3) Stage-Dominated Thermal Runaway in Sulfide ASSBs: Decoupled Electrochemical Ignition and Chemical Cascades, https://doi.org/10.21203/rs.3.rs-6428540/v1. (4) Active Safety Mechanism by ProLogium.

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Oven Tests 280? (@5?/min) 280? (@10?/min) Vol.(V) Temp.() Vol.(V) Temp.(?) ? 5.0 500 5.0 500 4.0 400 4.0 400 3.0 300 3.0 300 2.0 200 2.0 200 1.0 100 1.0 100 0.0 0 0.0 0 0 600 1200 1800 2400 3000 3600 4200 4800 5400 6000 0 600 1200 1800 2400 3000 3600 4200 4800 5400 6000 Time (S) Time (S) Voltage Temp(Chamber) Temp (Top) Voltage Temp(Chamber) Temp (Top) Temp (Bot) Temp (Positive) Temp (Negative) Temp (Bot) Temp (Positive) Temp (Negative)

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The Best of Conventional Solid & Liquid Revolutionary Cell Performance Without External Pressure Fast Charging C-rate Capability Near 100% Li+ transport efficiency 0.2-0.4 1 0.7-0.9 with minimal concentration polarization Liquid Solid mins mS/cm o o 57 -20 C 25 C 57 mS/cm at 25oC, 5x higher than 2 12 2 12 12 -20 C Performance the best of solid & liquid electrolytes Fast Charging Cycle ° Liquid Solid Pressure-free operation enabled by non-Newtonian flow behavior Heterogeneous Homogeneous Solid (1) Societe Generale de Surveillance SA.

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SGS Certified Conductivity Test Ionic Conductivity vs Temperature Super-Fluidized All Inorganic SSE (57 mS/cm) LPSCI (2 mS/cm) LATP (0.1 mS/cm) LGPS (10 mS/cm) LLZO (0.4 mS/cm) Gel ELT (0.1 mS/cm) 1 M LiPF? in EC:DMC (10 mS/cm) Composite ELT(0.3 mS/cm) PEO + LiFSI (0.001 mS/cm) -20 4.9E+01 °C 25°C 9.8E+00 2.0E+00 3.9E-01 (mS/cm) 7.8E-02 25°C 1.6E-02 LGPS / Liquid Organic 3.1E-03 Conductivity 6.3E-04 Ionic 1.3E-04 2.5E-05 5.0E-06 1.0E-06 (25) (20) (15) (10) (5) 0 5 10 15 20 25 30 Temperature (°C)

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Innovative Technology Enables High Energy Density Conventional liquid & solid-state batteries increase thermal runaway risk or reduce electric performance as energy density rises, creating a liquid-chemistry density ceiling Cell Energy Density 1,000–1,100 Wh/L 860–940 Wh/L ProLogium solves this fundamental contradiction at the material level 750 Wh/L 430–470 Wh/kg Safety and electric performance are no longer trade-offs 360–400 Wh/kg against energy density, allowing 4th generation technology to 280 Wh/kg exceed traditional ceilings with a roadmap to additional future Conventional Ceiling performance

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Gen 4 LCB not only provides supreme battery performance in energy density, charge speed and safety, it also reduces the compl exity in system design in cooling, pressuring and heating Energy Density: 860~940Wh/L CTP: 65% (540Wh/L) Specific Energy : 360~400Wh/kg Module:55% (450Wh/l) Energy Density: 380~420Wh/L CTP: 60% (240~252Wh/L) Specific Energy : 180~200Wh/kg Module: X (too low) Complicated design 1000V / 1500V Complicated design Heating system needed Energy Density: 800~900Wh/L CTP: X (additional Pressure issue) Specific Energy : 350~400Wh/kg Module: 30% (255~270Wh/L) Complicated design 0~790 ATM(1) Simplified Thermal insulation No Need 1000V / 1500V BMS (Fast Charing) Simplified Cooling System No Need Heat Pump System No Need Additional Pressure module Mechanism Cell Level Safety Cell Level Fast-charging Cell Level Efficiency Cell Level Low Temp. Performance Cell Level Interface Performance (1) Calculated based on the reported operating pressure of sulfide-based electrolyte described in "A critical outlook for large scale solid-state batteries"(Joule, 2025) (reported as 0~80 MPa; converted to 0~790 atm).

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Open a new chapter in lithium battery manufacturing @2024/Q3 ProLogium Totally Shipped more than Cells to market We are shipping next-gen batteries right now New Gwh Level Production line (G2) had already shipped 800k Cells from 2024/Q3 to 2025/Q4

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< 0.05 > 0.05 > 0.1 Sample Making Pilot Giga-level Realized Announced Postponed / Delayed Unclear Scale-Up Continuity Company 2013 2017 … 2022 2024 2025 2026 2027 2028 2029 2030 ProLogium Competitive Head Start in 0.05 0.55 0.8 1.6 5.05 0.01 Manufacturing 0.25 0.75 6 0.01(1) Mass production (Begin sales of ASSB cars) Mass production Limited scale Mass production—Announced in 2023 Oct—Sold in 2025 Oct during > 0.2 GWh 0.02(1) pre-IPO stage—Automated production for large—Taiwan production facility delivered—Continuous production scale EV cells ~13 years ahead of on-time and on-budget up planned in Taiwan and competitors France

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ProLogium Estimated CapEx Budget ProLogium Estimated CapEx Projection 2x Industry CapEx Reference Industry CapEx Reference 5x 180 Footprint 160 productivity 103x 140 improvement 120 Manufacturing 100 technology generation G1 G2 G3 G4 80 60 250 660 660 1,320 40 20 As capacity scales, continued optimization 300 1,260 1,260 1,260 is expected to further reduce CapEx ameters 0 Par 10 30 55 55 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 65,000 21,000 8,286 6,854

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Fewer Steps. Higher Efficiency. Greater Scalability Process steps requiring dry room Process steps integrated/eliminated by ProLogium Electrode Preparation Electrode Assembly Cell Assembly Conventional 1 2 17 8 7 n Separator hours steps folding Tab Sealing steps Mixing Slitting — Pouch Coating Vacuum Blanking Z Welding Injectio Vacuum Resealing Calendaring Notching vs Dehydration vs PolymerInstallation Packaging Pre Electrolyte Impregnation Formation Degassing& Trimming Formation 8 1 mins step +—Dehydration Dry room Eliminated Process + 11 efficiency coverage ching/ • Electrolyte injection Flowatta • Electrolyte Vacuum Impregnation Inlay Welding • Slurry Degassing steps Mixing Coating(ElectrodeAdhesive) improved Printing/Hot reduced ElectrolyteInstallation Blanking Stacking Packaging Sealing Formation Calendaring Dehydration Electrode Tab • Resealing • >2 times of formation 30-40% 60-70% 800,000 Reduced investment Patent Protected Already operating and shipping products Fewer manufacturing step Reduced dry room coverage Cells shipped from Giga Lower CapEx & OpEx LogithiumTM architecture & process Factory know-how since 2010 Slurry Coating Calendaring Printing & Dehydration Electrode attaching Blanking Stacking Tab Welding Packaging Sealing Footage captured on ProLogium Taoke production line in Nov 2023

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Electrolyte Cost, USD/kg Conventional Rare / unstable material NMC Cell 58 32 La Ge Li2S Structural cost advantages: Lanthanum Germanium • Rare-metal-free material • Used of lower-cost industrial-grade materials instead of battery grade enabled by purification effect during superfluidization Cell Material LiFSi LiPF6 Conventional Liquid (EU) Superfluidized Solid Oxide, LLZO Solid Sulfide, LGPS All- Inorganic SSE Up to 20% reduction ~15% reduction³ by simplification of the • by Improved energy density cooling system? • Elimination of pressure modules Cell Manufacturing -5~10%—4~7% -1~3% Pack Manufacturing Housing Thermal HV BMS Other BoM Production Pack COGS Management system costs Source: Company estimates. Note: Anticipated costs are management estimates only and are subject to change due to permitting, available financing including the Business Combination, suppliers, and other factors outside of the Company's control.

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Application Application A French top tier racing car OEM & a German luxury sport driving OEM A German high-end business & luxury OEM Long Range Design High Energy Design • Cold weather range > 95% • Range: 800-1000km • Ultimate safety • Ultimate safety • 400V Fast charging: 5-80% < 6.4 mins • 400V Fast charging: 5-80% < 6.4 mins Application A Global full-range passenger & commercial vehicles OEM Replaceable Design • LLCB Design in Horizontal Cooling System • Cell Level Replaceable and Repairable

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Future EV development is shifting from "large batteries for long range" toward small batteries, ultra-fast charging, and modular energy design. This approach reduces cost and weight while maintaining practical range. Major OEMs such as Mercedes, Stellantis, BMW, and Volvo are moving in this direction. The Mercedes ELF platform embodies this trend by exploring next-generation charging, energy management, and vehicle architecture. Traditional LFP+CTP design Next Generation Battery Design News Mercedes-Benz unveils experimental vehicle with revolutionary new features: 'A symbol of a bold new era' Super Fast Charging Small Battery PackLow TCO Modular , Easy to Repair and Recycle VS The Mercedes ELF (Electric Learning Factory) is an experimental EV platform focused on innovations in charging and energy management, aimed at exploring next-generation charging methods, energy configurations, and vehicle architectures. 45 kWh Small Volume Pack Design Features 83 kWh Big Volume Pack Ultra-Fast Charging Capability Note (Modularization) 185Wh/Kg 360~420 Wh/Kg ELF Experimental Vehicle • Supports 900 kW (MCS); CCS + • Tests wireless charging, conductive • Ultra-fast charging + Energy Density MCS + Wireless underbody charging, V2G modularization + V2G 403Wh/L 860~940 Wh/L • Charging & energy testing platform • Highly modular experimental cabin Total Energy 83 kWh 45 kWh Weight 560 kg Light Weight 220 kg IBIS Battery Architecture • 800V architecture; shorter • Battery + e-drive + charger • Modularized architecture Energy Efficiency charging time integrated 7.2 km/kWh 10 km/kWh • Weight reduction + fewer parts Driving Distance 570 km 450 km BMW — Gen6 Battery • 800V system; +300 km in ~10 min • New EV platform • High efficiency + fast (Neue Klasse) • Battery integrated into structural charging SOC 30-80%, Increase SOC 5-80%, floor Charging Rate Driving 30 mins@400V Distance < 6.4 mins@400V during 5~6 Volvo (including ES90) • 800V fast charging • Battery integrated into body structure • Fast charging + structural Driving 5 47~54 km mins charging 315 km • Substantial range added in 10 integration Rate per min 6.4 minutes charge min 85~98 km 360 km SSP Platform • Multi-generation fast-charging • Modular platform shared across • Simplified battery philosophy Pack Unit Price 100 USD/kWh 165 USD/kWh upgrade brands • Modular platform, not Reduce Total modular battery Total Cost of Pack 8300 USD Energy 7425 USD Wireless Charging • 11 kW wireless (not ultra-fast) • One-box inductive home charger • Future charging direction ProLogium can enables big performance boost in mass market EV, with high energy density cell and fast charging feature Source : Publicly available information. All trademarks, service, trade names, and logos are the property of their respective owners and are used for identification purposes only. No affiliation, endorsement, or sponsorship is implied.

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15~25% 0% Generation1.0 Liquid Solid-liquid 1 Solid-liquid 2 All Solid-State Organic liquid Organic liquid + SSE(organic/inorganic) ASSE(inorganic ELT) PP/PE separator LCO/ NMC / LFP/ High nickel NMC / LFP High nickel NMC / Li-rich LMO / LMO Graphite / Graphite + high % 100% Silicon / Li-metal / anode-less Graphite + low% silicon Silicon / Li-metal

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E m p o w e r i n g a S u s t a i n a b l e W o r l d www.Prologium.com Follow us on our social media

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**About Prologium Holding Inc.** 

Founded in 2006, Prologium Holding Inc. ("ProLogium") is an energy innovation company dedicated to the development and manufacturing of next-generation lithium ceramic batteries, holding over 1,100 global patents (granted and pending). In 2013, ProLogium introduced the world's first next-generation battery architecture featuring a 100% ceramic separator, becoming the first company globally to successfully commercialize solid-state batteries. In 2025, ProLogium again led the industry by introducing the world's first superfluidized all-inorganic solid-state lithium ceramic battery, integrating the advantages of solid-state and liquid type batteries and redefining next-generation battery technology with automation-ready, scalable mass production and cost competitiveness. In 2026, ProLogium once again received the Edison Awards Gold Award for its superfluidized all-inorganic solid-state lithium ceramic battery technology. With more than 13 years of manufacturing know-how, ProLogium is also the only company globally that can publicly demonstrate a solid-state battery mass-production line—proving that solid-state batteries are not merely a laboratory technology, but a mature solution ready for scalable manufacturing. In 2024, ProLogium inaugurated its first GWh-class gigafactory in Taoyuan, Taiwan, and has shipped more than 800,000 cells to date. In May 2024, ProLogium established its first overseas R&D center in Paris-Saclay, France, providing customized technical support for the European market. The Company's first overseas GWh-class facility in Dunkirk, France, completed its environmental assessment and building permit process by the end of 2024, with construction expected to begin in 2026. Ramp-up is expected to begin between Q4 2028 and Q1 2029, followed by formal mass production and deliveries in Q2 2029. For more information, visit https://prologium.com/news/.

**About Translational Development Acquisition Corp.** 

Translational Development Acquisition Corp. ("TDAC") is a blank check company incorporated for the purpose of effecting a merger, amalgamation, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses. TDAC may pursue an acquisition opportunity in any business, industry, sector, or geographical location, and intends to focus on industries that complement its management team's background and intends to capitalize on the ability of its management team to identify and acquire a business. TDAC's management team is led by Michael B. Hoffman, its chief executive officer and chairman of the board of directors, and Avanindra C. Das, chief financial officer. In addition, TDAC's board includes E. Premkumar Reddy, Curtis T. Keith, Matthew A. Kestenbaum and Christopher Jarratt.

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**Forward-Looking Statements** 

This communication contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Exchange Act of 1934, as amended that are based on beliefs and assumptions and on information currently available to ProLogium and TDAC. In some cases, you can identify forward-looking statements by the following words: "may," "will," "could," "would," "should," "expect," "intend," "plan," "anticipate," "believe," "estimate," "predict," "project," "potential," "continue," "ongoing," "target," "seek" or the negative or plural of these words, or other similar expressions that are predictions or indicate future events or prospects, although not all forward-looking statements contain these words. Any statements that refer to expectations, projections or other characterizations of future events or circumstances, including projections of market opportunity, number of customers and market share, the capability of ProLogium's technology, ProLogium's business plans including its plans to expand globally, the sources and uses of proceeds from the business combination, the anticipated enterprise value of the combined company following the consummation of the business combination, any benefits of ProLogium's partnerships, strategies or plans as they relate to the business combination, anticipated benefits of the business combination and expectations related to the terms and timing of the business combination are also forward-looking statements. These statements involve risks, uncertainties and other factors that may cause actual results, levels of activity, performance or achievements to be materially diﬀerent from those expressed or implied by these forward-looking statements. These statements are based on ProLogium's and TDAC's reasonable expectations and beliefs concerning future events and involve risks and uncertainties that may cause actual results to differ materially from current expectations. These factors are difficult to predict accurately and may be beyond ProLogium's and TDAC's control. Forward-looking statements in this communication or elsewhere speak only as of the date made. New uncertainties and risks arise from time to time, and it is impossible for ProLogium or TDAC to predict these events or how they may affect ProLogium or TDAC. In addition, there will be risks and uncertainties described in the proxy statement / prospectus relating to the business combination, which is expected to be filed by ProLogium with the SEC and other documents filed by ProLogium or TDAC from time to time with the SEC. These filings may identify and address other important risks and uncertainties that could cause actual events and results to diﬀer materially from those contained in the forward-looking statements. Neither ProLogium nor TDAC can assure you that the forward-looking statements in this communication will prove to be accurate. These forward-looking statements are subject to a number of risks and uncertainties, including, among others, the occurrence of any event, change or other circumstance that could delay, impede or prevent the business combination or give rise to the termination of the Business Combination Agreement; the outcome of any legal proceedings that may be instituted against ProLogium or TDAC, the combined company or others following the announcement of the business combination; the inability to complete the business combination due to the failure to obtain approval of the shareholders of ProLogium or TDAC or to satisfy other conditions to closing (including the $250 million Minimum Cash condition); the amount of redemption requests made by TDAC's public shareholders; the ability to maintain the stock exchange listing standards following the consummation of the business combination; the risk that the business combination disrupts current plans and operations of ProLogium or TDAC as a result of the announcement and consummation of the business combination; the ability to execute on its business strategy and the ability to develop and commercialize its solid-state battery technology; the ability to accurately estimate the future supply and demand for its batteries; the ability to respond rapidly to emerging technology trends; the ability to compete effectively and the ability to manage growth; the ability to recognize the anticipated benefits of the business combination; costs related to the business combination; changes in applicable laws or regulations; international trade disputes, including threatened or implemented tariffs by the U.S. and threatened or implemented tariffs by foreign countries in retaliation; the ability of ProLogium to execute its business model, including market acceptance of its planned products and services; the combined company's ability to raise capital; future financial performance of the combined company following the business combination; the possibility that TDAC or the combined company may be adversely affected by other economic, business and/or competitive factors; risks associated with ProLogium's efforts to commercialize its products; ProLogium's ability to maintain its existing agreements with third parties and to negotiate and enter into new definitive agreements on favorable terms, if at all; the impact of competing products on ProLogium's business; intellectual property-related claims against ProLogium or the combined company; ProLogium's dependence upon its key personnel and ability to attract and retain such personnel and additional qualified personnel; ProLogium's ability to source raw materials for its products; and other risks and uncertainties to be set forth in the section entitled "Risk Factors" in the registration statement on Form F-4 to be filed by ProLogium with the SEC and those included under the heading "Risk Factors" in TDAC's filings with the SEC. There may be additional risks that neither ProLogium nor TDAC presently knows or that ProLogium and TDAC currently believe are immaterial that could also cause actual results to differ from those contained in the forward-looking statements.

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In light of the significant uncertainties in these forward-looking statements, you should not regard these statements as a representation or warranty by ProLogium, TDAC, their respective directors, officers or employees or any other person that ProLogium or TDAC will achieve their objectives and plans in any specified time frame, or at all. The forward-looking statements in this communication represent the views of ProLogium and TDAC as of the date of this communication. Subsequent events and developments may cause those views to change. Except as required by applicable law, neither ProLogium nor TDAC has any duty to, and does not intend to, update or revise the forward-looking statements in this communication after the date of this communication. You should, therefore, not rely on these forward-looking statements as representing the views of ProLogium or TDAC as of any date subsequent to the date of this communication.

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**Additional Information and Where to Find It** 

In connection with the business combination, ProLogium is expected to file with the SEC a registration statement on Form F-4, which will include a proxy statement of TDAC and a prospectus of ProLogium. TDAC shareholders and other interested persons are encouraged to read, when available, the preliminary proxy statement/prospectus included in the registration statement and any other documents filed with the SEC because these documents will contain important information about ProLogium, TDAC and the business combination. After the registration statement is declared effective, the definitive proxy statement/prospectus to be included in the registration statement will be mailed to shareholders of TDAC as of a record date to be established for voting on the business combination. Before making any voting or investment decision, investors and shareholders of TDAC are urged to carefully read the entire registration statement and proxy statement/prospectus, when they become available, and any other relevant documents filed with the SEC, as well as any amendments or supplements to these documents, because they will contain important information about the business combination. The documents filed by TDAC and ProLogium with the SEC may be obtained free of charge at the SEC's website at www.sec.gov.

**Participants in the Solicitation** 

ProLogium, TDAC and their respective directors and executive officers may be deemed to be participants in the solicitation of proxies from TDAC shareholders with respect to the business combination. A list of the names of TDAC's directors and executive officers and information regarding their interests in the business combination will be included in the proxy statement/prospectus for the business combination when available. Additional information regarding the persons who may, under the rules of the SEC, be deemed participants in the solicitation of TDAC shareholders in connection with the business combination, including a description of their direct or indirect interests, by security holdings or otherwise, will be set forth in the proxy statement/prospectus for the business combination when available.

**No Offer or Solicitation** 

This communication is not a proxy statement or solicitation of a proxy, consent or authorization with respect to any securities or in respect of the business combination and does not constitute an offer to sell or the solicitation of an offer to buy any securities of ProLogium or TDAC, nor shall there be any sale of any such securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of such jurisdiction. No offer of securities shall be made except by means of a prospectus meeting the requirements of the Securities Act, or an exemption therefrom.