Guangdong Jiayuan Technology Co.Ltd(688388) : reply report on the examination and inquiry letter of Guangdong Jiayuan Technology Co.Ltd(688388) issuing stock application documents to specific objects (Revised) (updated version of financial data in the first quarter of 2022)

About Guangdong Jiayuan Technology Co.Ltd(688388)

Application documents for issuing shares to specific objects

Review the reply report to the inquiry letter

(Revised Version)

Sponsor (lead underwriter)

Shanghai Stock Exchange, North block of excellence Times Square (phase II), No. 8, Zhongxin Third Road, Futian District, Shenzhen, Guangdong Province:

We have received the inquiry letter on the examination of application documents for Guangdong Jiayuan Technology Co.Ltd(688388) issuing shares to specific objects (hereinafter referred to as the "inquiry letter") issued by your exchange on February 14, 2022, Citic Securities Company Limited(600030) (hereinafter referred to as " Citic Securities Company Limited(600030) ," sponsor "and" sponsor ") as the sponsor of Guangdong Jiayuan Technology Co.Ltd(688388) (hereinafter referred to as" Guangdong Jiayuan Technology Co.Ltd(688388) , "issuer" and "company") issuing shares to specific objects, and Guangdong Jiayuan Technology Co.Ltd(688388) Guangdong Xinda law firm (hereinafter referred to as "the issuer's lawyer") and Lixin Certified Public Accountants (special general partnership) (hereinafter referred to as "the issuer's reporting accountant" and "the accountant") have carefully implemented the questions listed in the inquiry letter one by one. Now, the reply to the questions in the inquiry letter is as follows, please review.

Unless otherwise specified, the abbreviations or terms in the reply report of this inquiry letter have the same meanings as those in the prospectus for offering shares to specific objects in Guangdong Jiayuan Technology Co.Ltd(688388) 2021.

Question 1. About one of the projects raised and invested this time

According to the application materials and public information, (1) the investment project of high-performance lithium copper foil (project 1) includes the Guangdong Jiayuan Technology Co.Ltd(688388) park with an investment of 86 million yuan, the new high-performance copper foil technical transformation project with an annual output of 16000 tons (Project 1.1), the high-performance copper foil project with an annual output of 15000 tons (project 1.2) with an investment of 120 million yuan, and the high-precision ultra-thin electronic copper foil project with an annual output of 30000 tons (project 1.3) with an investment of 84 million yuan; In addition, 160 million yuan of the raised funds will be invested in the 20000 ton electrolytic copper foil project of Jiangxi Guangdong Jiayuan Technology Co.Ltd(688388) Co., Ltd. (project 2); (2) The filing documents and EIA approval obtained in project 1.3 are 2016 and 2017 respectively. Shandong Jiayuan has started construction in April 2017, and the issuer will start construction in the second half of 2021; The EIA of project 2 has not been completed; (3) In November 2021, the issuer signed the letter of intent for investment in Guangdong Jiayuan Technology Co.Ltd(688388) annual 50000 tons high-end copper foil construction project with Meixian District People's Government of Meizhou city; In February 2022, the issuer intends to use its own funds to contribute RMB 400 million in monetary form to jointly establish Guangdong Jiayuan Times New Energy Materials Co., Ltd. with Contemporary Amperex Technology Co.Limited(300750) to build a 100000 ton high-performance electrolytic copper foil project. The above project is an independent project from this raised investment project.

The issuer is requested to explain: (1) the sales of various specifications of copper foil products during the reporting period, the specific contents, specifications and application fields of each sub project of project 1 and the main products of project 2, and the differences between the existing products and the previous raised investment projects in terms of product structure, technical level, process difficulty, application field, etc; The advantages and disadvantages of the issuer's technical level and product performance of each raised investment project compared with its competitors in the same industry; (2) The issuer's production capacity and future capacity planning of projects that have reached production capacity and are under construction in each year during the reporting period, and analyze the rationality of the above-mentioned new capacity planning in combination with the downstream market factors such as the capacity of products of various specifications or market segments, the current and under construction capacity of the market, the development trend of the industry, the expiration of new energy vehicle subsidy policies, and the issuer's market share; In combination with the above situation, the capacity planning of the issuer's main customers, the proportion of the issuer's sales volume to its main customers in its purchase volume, the issuer's orders in hand, the production expansion of comparable companies, etc., analyze whether the issuer's raised investment project capacity can be fully digested; Reasons and rationality of large-scale production expansion plan before the previous raised investment project was put into operation; (3) The specific composition, calculation basis and calculation process of the investment amount of each sub project of project 1 and project 2; (4) Process, basis and results of benefit prediction of each subproject of project 1 and project 2; (5) Item 1.3 the filing and environmental impact assessment of the project took place earlier, and whether relevant procedures need to be handled again; The handover of the project between the issuer and Shandong Jiayuan means that the construction will start in the second half of 2021; The specific progress of project 2 in obtaining the EIA reply. If it cannot be obtained as scheduled, whether the relevant raised investment projects will be evaluated

Adverse impact on implementation process and benefit prediction; (6) The issuer and Meixian District Civil Administration of Meizhou City

Background, construction plan and capital source of the Contemporary Amperex Technology Co.Limited(300750) cooperative construction project between the government and Contemporary Amperex Technology Co.Limited(300750)

The difference between this raised investment project and the rationality and necessity of this raised investment project.

The reporting accountant is requested to check and express opinions on the above matters (3) (4), and the lawyer of the issuer is requested to check

Check and comment on the above matters (5).

reply:

1、 Sales of copper foil products of various specifications during the reporting period, including all subprojects of project 1 and main items of project 2

The specific contents, specifications and application fields of the products are different from the existing products and the previous raised investment projects in terms of product structure

Differences in technical level, process difficulty, application field, etc; Technical water of each raised investment project of the issuer

Equal to the advantages and disadvantages of product performance compared with competitors in the same industry;

(I) sales of copper foil products of various specifications during the reporting period

January March 20222021 20202019

Project amount and quantity (10000 yuan) (ton) (10000 yuan) (ton) (10000 yuan) (ton) (10000 yuan) (ton) (10000 yuan) (ton) (10000 yuan) (ton)

Lithium copper foil 9276020881899251910602481952107851661396033143439291709595

Including: dual light 6 µ m and below 7290832681236192128731839106645023176918099439341113357

Double light above 6 µ m 1985188200663597818864284643349356268534399995596238

Standard copper foil 350605 384.6628465592955731236624203216116130 182.73

Total 9626625920365280376192777525120217891599248144600591727868

(II) specific contents, specifications and application fields of each sub project of project 1 and main products of project 2,

Compared with the existing products and the previous raised investment projects in terms of product structure, technical level, process difficulty, application field, etc

Surface difference

The specific contents, specifications and application fields of the main products of the issuer's raised investment project are as follows:

Main product specifications and application fields of the project subproject

High performance lithium battery Project 1.1 dual light 6 µ m and below is mainly used for lithium

Copper foil fund-raising project 1.2 lithium battery copper foil dual optical 6 µ m and below ion battery field

Gold investment project 1.3 dual light 6 µ m and above

Jiangxi Guangdong Jiayuan Technology Co.Ltd(688388) Co., Ltd. produces PCB copper foil annually. High performance electronic circuit copper foil for PCB is mainly used in

20000 ton electrolytic copper foil project PCB field

Project product structure difference technical level difference process difficulty difference application field difference

The products produced by this raised investment project and the existing products produced by this raised investment project are all products produced by this raised investment project

The structure of high-performance lithium products and the funds raised in the previous time are not substantially the existing mass-produced products, which are different from the existing products and the copper foil raised in the previous time.

Compared with the existing product structure, there is no significant difference between the production technology level and development difficulty of this product and the issuer's existing product investment projects. The fund-raising investment projects focus on the production of 6 µ m and pedestrians. The existing technology level and pre production process and the previous fund-raising investment projects are applied to copper foil products below lithium ion battery investment projects, so as to adapt to the technology used in the secondary fund-raising investment projects of downstream customers, and there is no significant difference in the technical level

There is no significant difference in the level of demand

1. The project is mainly funded by raising funds

1. The issuer now mainly produces high-end PCB copper foil for mass-produced PCBs

Copper foil mainly includes: copper foil for rigid circuit board. Related products are superior to current products in terms of copper foil surface 1. The raised capital investment project is produced 1. High performance electronic circuit copper foil produced with existing mass-produced PCB Jiangxi Jiayuan (12-18 µ m), multi-layer high-density roughness, strength and ductility of middle and low-end. There is no major technology limited interconnection of multi-layer HDI circuit board (12-18 µ m) in the application field of copper foil, and the product roughness is low, The RZ value can be different, which can be applied to the annual output of PCB company. 2. The main production of this raised investment project is planned to meet the high-density interconnection multi-layer ≤ 2.0, compared with the existing product field

20000 tons of high-performance electronic circuit copper foil for electric PCB, which can be used for HDI circuit board and 5g high-frequency RZ value ≤ 5.0. 2. The unused copper foil item of the previously raised funds is used for high-density interconnection of multi-layer HDI circuit board, high-speed circuit board and other products. For the products with information technology difficulty in producing copper foil products and low loss in the transmission process of 5g high-frequency high-speed circuit board number, 2. The previously raised funds are not used for generating PCB

3. The previously raised funds were not used for the construction of PCB copper foil production line

PCB copper foil production line construction 2. The previously raised funds were not used for

Construction of PCB copper foil production line

(III) the technical level and product performance of each raised investment project of the issuer are better than those of competitors in the same industry

power

1. Technical level of the issuer's products

(1) Technology research and development

The company has been recognized as the national enterprise technology center, the national technological innovation demonstration enterprise and the national knowledge industry

Right advantage enterprises and high-tech enterprises have strong technological R & D strength.

In terms of independent innovation, the company has mastered a number of technological achievements through continuous R & D investment and technological innovation

Familiar with the key core technology, in addition to mastering the core technology of ultra-thin / ultra-thin lithium battery copper foil manufacturing, he also mastered HDI

Manufacturing technology and addition of high-end electronic copper foil such as copper foil, VLP / HVLP copper foil, FPC copper foil and RTF copper foil

Agent compounding technology, high-efficiency copper dissolution technology, electrolyte filtration technology, cathode roller grinding technology, high-precision slitting and

Copper powder cleaning technology, etc.

In 2020, the company realized the industrialization of 4.5 µ m ultra thin copper foil, with copper foil surface density, tensile strength and ductility

Key indicators such as elongation are at the industry-leading level, which can improve the energy density of lithium battery by 5-10% (compared with 6 µ M products). At the same time, the company "uses high-performance extremely thin electrolytic copper foil core for lithium-ion power battery"

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