[Hui-Sheng-Chuang] Disclosure of Financial Information Regarding Unusual Stock Price Activity

1. Date of occurrence: 115/05/21 2. Cause of occurrence: Today, the company received a notification from the Stock Exchange stating that our securities have reached the standard for public announcement of trading information, and we are issuing this announcement under the Stock Exchange's instruction. 3. Financial Information: (See original text for data table) Operating Revenue (million TWD): Recent month (April 115): 41 (-25.76% YoY) Pre-tax Net Profit (million TWD): Recent month: 8 (+144.00% YoY) Net Profit for the period (million TWD): Recent month: 6 (+148.99% YoY) EPS (TWD): Recent month: 0.18 (+157.14% YoY) 4. Whether there are any major events as listed in Article 4 of the 'Taiwan Stock Exchange Corporation Procedures for Verification and Disclosure of Material Information': None. 5. Whether there is a need for a press conference as listed in Article 11: None. 6. For complete financial information, please visit the Market Observation Post System. 7. Other matters: (1) The monthly decline in revenue is mainly due to delays in customer shipments. (2) The increase in monthly pre-tax and net profit is mainly due to the resolution of exchange losses caused by the sharp appreciation of the New Taiwan Dollar in April 114. (3) The increase in quarterly pre-tax and net profit is mainly due to the decrease in selling expenses by approximately 4 million compared to the first quarter of 114.