USI’s controlling stake diluted after convertible bond conversion

Between December 18 and December 23, 2025, Universal Scientific Industrial (Shanghai) Co., Ltd. (USI) saw its total share capital increase by 23,962,456 shares due to the conversion of “USI convertible bonds.” This increased diluted the combined equity stake of controlling shareholder Universal Scientific Industrial (Taiwan) Co., Ltd. and its party acting in concert, ASE Technology Holding Co., Ltd. (Shanghai), from 76.82% to 76.00%, even as their total shareholding remained constant at 170,184,760.2 shares.

The change in ownership proportion was a passive consequence of the company's expanded share capital, rather than any direct share sales or purchases by the controlling entities. As of December 23, 2025, the total share capital of USI stood at 2,239,385,144 shares.

This equity change does not involve any active share increase or decrease by shareholders and does not trigger a tender offer. The company confirmed that this event will not significantly impact its normal production and operations, nor will it lead to a change in the company's controlling shareholder or actual controller.