688321: expiration of shareholders’ share reduction plan and results of share reduction

Securities code: 688321 securities abbreviation: Shenzhen Chipscreen Biosciences Co.Ltd(688321) Announcement No.: 2022-006 Shenzhen Chipscreen Biosciences Co.Ltd(688321) announcement on the expiration of shareholders’ share reduction plan and the result of share reduction

The board of directors, all directors and relevant shareholders of the company guarantee that there are no false records, misleading statements or major omissions in the contents of this announcement, and bear legal responsibility for the authenticity, accuracy and integrity of its contents according to law. Important content tips:

Basic information of shareholders’ shareholding

Lav one (Hong Kong) Co., Limited (hereinafter referred to as “LAV one”) held 17724496 shares of Shenzhen Chipscreen Biosciences Co.Ltd(688321) (hereinafter referred to as “the company”) before the implementation of the reduction plan, accounting for 4.32% of the total share capital of the company; Vertex Technology Fund (III) Ltd (hereinafter referred to as “vertex”) held 17745902 shares of the company before the implementation of the reduction plan, accounting for 4.32% of the total share capital of the company.

Implementation results of share reduction plan

The company disclosed the announcement of Shenzhen Chipscreen Biosciences Co.Ltd(688321) shareholders’ share reduction plan (Announcement No.: 2021-059) on July 6, 2021. LAV one and vertex plan to reduce their shares of the company through centralized bidding transaction, block transaction and other legal means from July 9, 2021 to January 22, 2022, The total number shall not exceed 24600000 shares (if the company has share changes such as share bonus and conversion of capital reserve to share capital during this period, the number shall be adjusted accordingly), that is, it shall not exceed 6% of the total share capital of the company.

On January 23, 2022, the company received the notification letter on the results of share reduction of Shenzhen microchip Biotechnology Co., Ltd. from LAV one and vertex. The above reduction plan time has expired. During the above reduction period, LAV one reduced 14934470 shares, accounting for 3.64% of the total share capital of the company, including 8025770 shares through centralized bidding transaction, Accounting for 1.95% of the total share capital of the company; 6908700 shares were reduced through block trading, accounting for 1.68% of the total share capital of the company; Vertex did not reduce its holdings during the above reduction period.

1、 Basic information of the reducing entity before the reduction

Shareholding quantity current shareholding shareholder name shareholder identity shareholding proportion

(stock) source

LAV One (Hong

More than 5% is not obtained before IPO:

Kong) Co., 17,724,496 4.32%

A major shareholder 17724496 shares

LimitedVertex

More than 5% is not obtained before IPO:

Technology Fund 17,745,902 4.32%

A major shareholder 17745902 shares

(III) Ltd

There are persons acting in concert with the above reduction subjects:

Number of shares held

Name of shareholders shareholding ratio concerted action relationship formation reason (share)

LAV One (Hong

17724496 4.32% actual controller of vertex (Kong) Co., LIMITED

At the same time, it indirectly controls the first group of vertex technology of LAV one

17745902 4.32% 50% equity

Fund (III) Ltd

Total 35470398 8.64% –

2、 Implementation results of the reduction plan (I) shareholders disclose the implementation results of the reduction plan due to the following matters: the disclosed reduction time interval expires

Reduction quantity reduction ratio reduction party reduction price area reduction total amount reduction completion status current number of shares current shareholder name (share) example reduction period (yuan) situation (share) proportion (yuan / share)

Lav one centralized competition

hang in the air:

(Hong 2021 / 7 / 27 ~ price delivery 31.42 –

14934470 3.64% 299539482 2790026 2790026 (0.67930% Kong) Co., 2022 / 1 / 22 Yi, Da 41.76

thigh

Limited transactions

Vertex

hang in the air:

Technology 2021 / 7 / 27 ~ others

0 0% 0-0 0 6875504 17745902 4.32068% Fund (III) 2022 / 1 / 22

thigh

Ltd

Note: the above reduction period is the reduction period of centralized bidding transactions, and the reduction period of block transactions is from July 9, 2021 to January 4, 2022

(II) whether the actual reduction is consistent with the previously disclosed reduction plan and commitment √ yes □ no (III) whether the reduction time interval expires and whether the reduction has not been implemented □ not implemented √ implemented

During the share reduction plan, vertex did not reduce its shares, did not exceed the contents specified in the share reduction plan, and met the disclosed share reduction plan.

(IV) whether the actual reduction does not reach the minimum reduction quantity (proportion) of the reduction plan □ not reached √ reached (V) whether the reduction plan is terminated in advance □ yes √ no

It is hereby announced.

Shenzhen Chipscreen Biosciences Co.Ltd(688321) board of directors January 24, 2022

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