Dear customers, partners, and friends from all walks of life:

In order to optimize the corporate governance structure and enhance strategic synergy, Chuzhou Qidi Instrument Co., Ltd. (formerly known as Tianchang Qidi Automation Instrument Co., Ltd.) has completed a significant shareholder change. The relevant matters are hereby announced as follows:

Details of shareholder change:

On July 8, 2025, after confirmation through industrial and commercial registration, the original shareholders of Chuzhou Qidi Instrument Co., Ltd., Zhu Shaolin and Shi Congfei, officially withdrew and changed their shareholders to Shangzi Instrument (Nanjing) Co., Ltd.

After this change, Shangzi Instrument (Nanjing) Co., Ltd. holds 100% equity of Chuzhou Qidi Instrument Co., Ltd., achieving full control.

Background of the holding company:

Shangzi Instrument (Nanjing) Co., Ltd. was established on December 23, 2022, with Shi Congfei as the legal representative and registered in the Intelligent Manufacturing Industrial Park of Jiangbei New District, Nanjing.

Shi Congfei is the direct controlling shareholder of Shangzi Instrument (Nanjing) Co., Ltd., holding a 100% stake, and therefore indirectly controls Chuzhou Qidi Instrument Co., Ltd. through the company.

Current situation of Chuzhou Qidi Instrument Co., Ltd.:

Our company was established in 2019, mainly engaged in the manufacturing of instruments and meters, with a registered capital of 100000 RMB.

This change will not affect the daily operation, contract performance, and customer service of the company. The company will focus on technology research and development and market expansion.

Chuzhou Qidi Instrument Co., Ltd

August 7th, 2025