ZHEJIANG YONGTAI TECHNOLOGY CO., LTD.

(GDR under the symbol: "YTT")

(a joint stock company established under the laws of the People's Republic of China with limited liability)

Preliminary 2026 Interim Results Forecast

I. Preliminary Results for the Current Period

1. Period for the estimated results: 1 January 2026 to 30 June 2026

2. Estimated results: Increase over last year

II. Communication with Accounting Firm

The financial data related to this preliminary results has not been audited by the accounting firm.

III. Explanation for the Changes in Results

During the reporting period, driven by the rapid growth in demand from the new energy vehicle and energy storage markets, the Company experienced year-on-year increases in both sales volume and prices of its core lithium battery material products, namely lithium hexafluorophosphate, lithium bis(fluorosulfonyl)imide (LiFSI), vinylene carbonate (VC), and electrolytes. Concurrently, the 5,000 tons/year VC production capacity newly commissioned at the end of 2025 was steadily released. These two growth drivers collectively contributed to the expansion of the Company's revenue scale and the sustained improvement of its operating performance, resulting in a year-on-year increase in overall results.

IV. Other Relevant Explanation

This preliminary result is based on the estimation of the Finance Department of the Company, and the specific financial data is subject to the 2026 interim report to be disclosed by the Company. Investors are kindly advised to make cautious decisions and pay attention to investment risks.

The Board of Directors

Zhejiang Yongtai Technology Co., Ltd.

30 June 2026