Longsys: Announcement on the listing and trading of overseas listed foreign shares (H shares)

Securities code: 301308 Securities abbreviation: Longsys Announcement number: 2026-105

Shenzhen Jiangbo Long Electronics Co., Ltd.

Announcement on the listing and trading of overseas listed foreign shares (H shares)

The company and all members of the board of directors guarantee that the information disclosed is true, accurate and complete, and contains no false records, misleading statements or major omissions.

Shenzhen Longsys Electronics Co., Ltd. (hereinafter referred to as the "Company") is in the process of issuing overseas listed foreign shares (H shares) and listing them on the main board of The Stock Exchange of Hong Kong Limited (hereinafter referred to as the "Hong Kong Stock Exchange") (hereinafter referred to as the "Issuance and Listing").

The company's global offering of H shares totaled 29,989,450 shares (before the exercise of the over-allotment option), of which 2,607,800 shares were publicly offered in Hong Kong, accounting for approximately 8.70% of the total global offering; 27,381,650 shares were offered internationally, accounting for approximately 91.30% of the total global offering (before the over-allotment option was exercised). Based on the offer price of HK$236.00 per H share, after deducting underwriting commissions and other estimated expenses related to the global offering, and assuming that the over-allotment option is not exercised, the net proceeds received by the company from the global offering are estimated to be approximately HK$6.803 billion.

With the approval of the Hong Kong Stock Exchange, the 29,989,450 H shares issued by the company this time (before the exercise of the over-allotment option) were listed and traded on the main board of the Hong Kong Stock Exchange on September 8, 2026. The company's H shares are abbreviated as "Jiangbo Long" in Chinese, "Longsys" in English, and the stock code is "09976".

After the completion of this issuance and listing, the company's share changes are as follows:

Before this issuance and listing After this issuance and listing

Shareholders Assumed over-allotment option Assumed over-allotment option

Share of total shares

Category Number of shares held Not exercised Fully exercised

Ben

(shares) Number of shares held Proportion of total shares Number of shares held Proportion of total shares

(Share) Ratio (Share) Ratio A Share

429,668,149 100.00% 429,668,149 93.48% 429,668,149 92.57% shareholders

H shares

• • 29,989,450 6.52% 34,487,850 7.43% shareholders

shares

429,668,149 100.00% 459,657,599 100.00% 464,155,999 100.00%

total

After the completion of this issuance and listing, the changes in shareholdings of shareholders holding more than 5% of the company's shares and persons acting in concert are as follows:

Before this issuance and listing After this issuance and listing

Assumed Over-allotment Option Assumed Over-allotment Option Shareholders

Number of shares held Percentage of total share capital Not exercised Fully exercised

Name

(Share) Ratio Number of shares held in total share capital Number of shares held in total share capital

(Share) Proportion (Share) Proportion Cai Huabo 162,071,900 37.72% 162,071,900 35.26% 162,071,900 34.92% Cai Lijiang 14,700,000 3.42% 14,700,000 3.20% 14,700,000 3.17% shares

176,771,900 41.14% 176,771,900 38.46% 176,771,900 38.08%

total

Note: If the mantissa of the total in the above table does not match the sum of the listed values, it is due to rounding.

Announcement is hereby made.

Board of Directors of Shenzhen Longsys Electronics Co., Ltd.

September 8, 2026