Red Sky Chemical: Wholly-owned subsidiary pays back taxes of 25.1142 million yuan.

Announcement: Guizhou Chitianhua Co., Ltd., a wholly-owned subsidiary of Chitianhua, is required to pay a tax of 20.7988 million yuan, a late fee of 4.3154 million yuan, totaling 25.1142 million yuan. As of the date of this announcement, the above-mentioned tax and late fees have been fully paid, and the competent tax authorities have not imposed any administrative penalties on the matter. The taxes and late fees paid will be included in the company's current profit and loss for fiscal year 2025, and are expected to affect the net profit attributable to the shareholders of the listed company by 25.1142 million yuan in 2025.