Committed to forging a brand as a “Strong and elegant pioneer in

optoelectronic technology innovation,” empowering a new future

for digital life.

ONESOLAR

TECHNOLOGY

— Zhuangzi, “Tianxia” (The Under-Heaven)

“The ancients mastered the roots and the details, harmonising all things

from heaven to earth. Their wisdom pervaded every scale and scope – a

timeless truth that still endures in the records of old.”

CONTENTS

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COMPANY PROFILE TECHNOLOGY AND

RESEARCH ACHIEVEMENTS

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STRATEGY

AND DEVELOPMENT

Positioning and Development Vision

Strategic Objectives

Application Scenarios and Product Portfolio

R&D and Development Strategy

Development Plan

24

25

26

28

30

Perovskite

Technology Framework

Technological Capabilities

Products and Samples Display

Certifications and Accreditations

12

14

16

18

20

RUNSHIHUA Group

ONESOLAR TECHNOLOGY

06

08

COMPANY PROFILE

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fifl ABOUT

RUNSHIHUA GROUP

RUNSHIHUA Group focuses on providing reliable energy solutions to

customers through innovative technology and efficient services. It is

committed to becoming a globally leading provider of clean energy

and integrated service solutions, driving the green and low-carbon

transition, and creating a sustainable future.

Adhering to the core values of \"Green Development, Integrity and

Win-Win Collaboration, Innovation and Initiative, and

People-Centricity,\" we empower a green future with technological

wisdom, nurturing the world and illuminating China!

RUNSHIHUA GROUP

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RUNSHIHUA

BUILDING

ABOUT

ONESOLAR

ONESOLAR TECHNOLOGY Co., Ltd. is the core part of Guangdong Runshihua Holding Group’s

strategic layout for next-generation optoelectronic technologies and their industrialisation. The

company was jointly established by the Group and the national-level high-level young talent team

from the State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,

Wuhan University of Technology, and was founded in Longgang, Shenzhen, in April 2024.

The company possesses strong R&D capabilities, leveraging the nearly decade-long research

achievements of Professor Tong Jinhui’s team from the State Key Laboratory of Advanced

Technology for Materials Synthesis and Processing, Wuhan University of Technology, in the fields of

perovskite single-junction solar cells, perovskite tandem solar cells, and large-area module

development (including multiple publications in Science, Nature, and Nature sub-journals).

Combined with Runshihua Group’s more than ten years of experience in the new energy sector,

ONESOLAR TECHNOLOGY adheres to the development philosophy of “being clear about the

fundamentals and attentive to the details” and upholds the corporate spirit of “striving for greater

purity and superior product quality.”

ONESOLAR TECHNOLOGY

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TEAM

The Optoelectronic Energy Conversion Technology Laboratory is located in Guangdong Everbright

Smart Valley, Dalang Town, Dongguan City.

The company currently has over 20 employees, among whom are 1 national-level high-level young

talent, 2 with associate senior professional titles or above, 2 PhDs, and 7 Master's degree holders.

R&D personnel account for 80% of the workforce, and 100% hold a bachelor's degree or above.

RESEARCHER

Tong Jinhui

National High-Level Young Talent, Researcher, and Doctoral

Supervisor at Wuhan University of Technology; Postdoctoral

Fellow at the National Renewable Energy Laboratory (NREL),

USA.

Co-Founder

Chief Scientist

PROFESSOR

Hu Guotang

Co-Founder

General Manager

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Associate Professor of Industrial Design at Wuhan University of

Technology. Formerly served as Deputy Secretary of the Party

Working Committee of Beiqiao Subdistrict, Xiangcheng District,

Suzhou, Jiangsu; Deputy County Mayor of Xuyi County, Huai'an;

and Deputy Director of the Management Committee of

Yangzhou Economic and Technological Development Zone.

TECHNOLOGY AND

RESEARCH ACHIEVEMENTS

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Perovskite materials used in the optoelectronic industry offer advantages such as high conversion

efficiency, tunable bandgap, excellent low-light response, simple and low-cost fabrication processes,

flexibility/semi-transparency, and suitability for tandem structures.

Perovskite has become a rising star in photovoltaic cells. With further scientific research and

technological innovation, it is expected to overcome existing bottlenecks and achieve large-scale

commercial production, making a significant contribution to the global energy transition and

environmental protection.

It is neither calcium, nor titanium, nor a mineral ore, but a

synthetically engineered semiconductor material with an ABX3

crystal structure.

ffffl fl ABX3Crystal Structure Diagram

PEROVSKITE

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TECHNOLOGY

SYSTEM

Technology Roadmap

Laboratory

Equipment

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Inverted Single-Junction Perovskite Solar Cell Structure All-Perovskite Tandem Cell Structure

Focusing on large-area perovskite solar cell modules, with inverted single-junction as the technological

foundation, we are strategically deploying large-area rigid and flexible perovskite single-junction modules, as

well as all-perovskite tandem cells and perovskite space battery large-area modules.

INDUSTRY-LEADING LEVEL

O

O

O

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CERTIFIED SINGLE-JUNCTION

MODULE EFFICIENCY

MPPT STEADY-STATE

EFFICIENCY

Process Flow

START

FINISH

ITO/FTO Substrate Cleaning P1 Laser Scribing Equipment

P3 Laser Scribing P4 Laser Edge Deletion POE Lamination & Butyl Edge Sealing

Large-area Evaporation P2 Laser Scribing Equipment

Large-area Evaporation or Coating

Large-area Evaporation or Coating

Uniform Large-area Hot Plate Heating

Uniform Large-area Hot Plate Heating Uniform Large-area Hot Plate Heating

Large-area Coating

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TCO Glass

Preparation

P1 Laser

Scribing

ETL or HTL

Deposition

Annealing

/ Drying

Perovskite Layer

Deposition

Drying

/ Annealing

Drying

/ Annealing

P2 Laser

Scribing

Metal Electrode

Deposition

P3 Laser

Scribing

P4 Edge

Deletion Encapsulation Testing

ETL or HTL

Deposition

TECHNICAL

STRENGTH

On September 3, 2024, certified by an authoritative institution, the photoelectric conversion efficiency

reached 30.41%, the world's highest certified efficiency among low-cost thin-film photovoltaic cells during

the same period, far surpassing the 29% theoretical efficiency limit of conventional crystalline silicon solar

cells, firmly establishing ONESOLAR TECHNOLOGY's leading position in the perovskite photovoltaic field.

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Photoelectric Conversion

Efficiency of All-Perovskite

Tandem Solar Cells

SETTING A NEW

WORLD RECORD

Performance Breakthroughs and World Records.

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300×300 mm² Large-Area

Perovskite Single-Junction Module

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Maximum Power Point Tracking

The company's pilot line has been completed and its R&D products have successfully rolled off the

production line, placing it at the leading level among domestic peers in the industry.

INDUSTRY LEADERSHIP

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CERTIFIED SINGLE-JUNCTION

MODULE EFFICIENCY

MPPT STEADY-STATE

EFFICIENCY

PRODUCTS AND

SAMPLE SHOWCASE

ONESOLAR

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Combining aesthetics with functionality, achieving innovations in design philosophy,

structural form, color matching, material innovation, and cultural integration. Embodying

energy invisibility, form freedom, and intelligent functionality.

ONESOLAR Perovskite Luminaires

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Perovskite Wall Washer Light Perovskite Street Light

Perovskite Camping Mosquito Killer Light 300×300 mm² Rigid Module

QUALIFICATIONS

AND CERTIFICATIONS

Certificates

Perovskite Solar

Cell Module (Rigid Large-Area) 22%

Rigid Perovskite Solar Cell

Small-Area Device (≤1 cm²) 26.15%

Flexible with Area Exceeding

300×300 mm² Module 19.06%

All-Perovskite Tandem

Solar Cell 30.41%

Flexible Perovskite

Small-Area Device (≤1 cm²) 28.08%

Granted Patent Certificate –

Utility Model for a Solar-Powered

Wireless Charging Foldable Phone Case

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Intellectual Property Application

Acceptance Notice

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Intellectual Property (As of April 15, 2026)

Patent Applications

Filed

Design

Patent

Authorized Utility

Model Patent

Invention

Patents

Utility Model

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STRATEGY AND DEVELOPMENT

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Just light. Always on.

POSITIONING AND

DEVELOPMENT VISION

R&D PRODUCTION SALES

Committed to forging a brand as a “strong and elegant pioneer in optoelectronic

technology innovation,” empowering a new future for digital life.

Brand Positioning

Focusing on the development and application of advanced optoelectronic functional materials,

high-efficiency optoelectronic energy conversion technology, and advanced electronic and electrical

integrated manufacturing technology, the company is deeply engaged in C-end consumer scenarios,

specializing in the R&D, production, and sales of lightweight, high-efficiency intelligent power

supplies and novel optoelectronic energy conversion system solutions.

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STRATEGIC

OBJECTIVES

The company adheres to the corporate philosophy of \"Being clear about the

fundamentals and attentive to the details.\"

With \"R&D of key functional materials – development of core technological

processes – intelligent manufacturing of distinctive products

– reconstruction of user behavior patterns\" as the core pathway.

Upholding the product ecosystem vision of \"Where there is light, energy is

always on.\"

Creating the ultimate experience of \"Unrestricted travel\" for users.

Committed to forging a brand as a \"Strong and elegant pioneer in

optoelectronic technology innovation,\" empowering a new future for digital life.

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Indoor low-light energy harvesting scenarios, daily mobile terminal supplemental charging scenarios,

outdoor travel and camping scenarios, emergency backup power scenarios, and space energy

scenarios.

fflfl APPLICATION SCENARIOS

AND PRODUCT

PORTFOLIO

Core products cover four major categories.

Direct power supply for low-power

electronic products

Supplemental power supply for mobile

smart terminals

Outdoor mobile emergency

power supply

Space power supply for future space

data centers

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R&D Plan

Simultaneous development of perovskite single-junction and tandem

solar cells.

Inverted perovskite solar cells in 300×300 mm²

and 600×600 mm² sizes. Single-junction cells

Tandem cells All-perovskite tandem solar cells.

Flexible inverted perovskite solar cells for mobile devices,

wearable devices, building-integrated photovoltaics, etc. Flexible cells

Space-application perovskite solar cells that meet the

demands of high efficiency, radiation resistance, and Space cells

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AND DEVELOPMENT

STRATEGY

Product Development Strategy

Build gigawatt-scale ultra-large-size perovskite production lines, focusing on development and

application of advanced optoelectronic functional materials, high-efficiency optoelectronic energy

conversion technology, and novel optoelectronic energy conversion systems, while also laying out

future space power supply fields.

Medium-term (3-5 years)

Long-term

Deeply engage in flexible consumer mobile intelligent device power supplement products, and

develop niche markets such as automotive photovoltaics.

Short-term (1-2 years)

SHORT-TERM

MID-TERM

LONG-TERM

Leveraging R&D pilot line and pilot-scale production capacity, focus on developing emergency backup

power supplies for flexible lightweight wearable electronic terminal devices, low-power direct power

supplies, and personalized cultural-creative mobile power products, aiming to create hit products.

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DEVELOPMENT

PLAN

April: Company established; November:

Pilot line completed.

December: 300×300 mm² R&D product

rolled off the production line.

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300×300 mm² rigid 23%, flexible 19%

600×600 mm² pilot-scale line

completed.

300×300 mm² rigid exceeds 23%

Flexible lightweight consumer

mobile energy products enter the

market.

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600×600 mm² efficiency 21%

Develop niche markets such as

automotive photovoltaics.

Perovskite space photovoltaic

technology

Gradually maturing, C-end market

Share significantly increased.

Product quality ranks first-class

domestically, with capital increase and

production expansion.

Planning for IPO + direct power supply for

low-power electronic products

Supplemental power supply for mobile

smart terminals

Outdoor mobile emergency power supply

Space power supply for future space data

centers.

ONESOLAR

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ONESOLAR TECHNOLOGY

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Just light. Always on.

Just light. Always on.

Shenzhen Headquarters：Runshihua Building, No. 557 Ruyi Road, Longgang District, Shenzhen, China

Taiyuan Office：Chen Yu Building, No. 3 E-commerce Street, Xiaodian District, Taiyuan, Shanxi, China

Dongguan Office：Guangda Manufacturing · Dalang Smart Valley, Dalang Town, Dongguan, China

Tel: 0755-8977 9669(Shenzhen)

Tel: 0351-7210 450(Taiyuan)

www.runshihua.com Version No.: BS-26-V1.0 Printing Batch: Second printing, August 2026