Notice of Mid-Autumn Festival Holiday Arrangements for 2026

Dear Partners, Friends, and All Employees,

In accordance with national statutory holiday regulations and taking into account the actual operations of our Group, we hereby announce the holiday arrangements for the 2026 Mid-Autumn Festival as follows:

I. Holiday Period

The holiday will be from September 25 (Friday) to September 27 (Sunday), 2026, totaling 3 days. Work will resume as normal on Monday, September 28, 2026.

II. Work Arrangements

During the holiday, daily office operations of the Group and all its subsidiaries (including Klarint New Material, Kemris Mineral Products, Kabasph Polymer, and Xuzhou AAB Industrial Technology) will be suspended.

To ensure timely response to important matters, you may reach us through the following channels during the Mid-Autumn Festival holiday period:

Global Business Contact Email: marketing@aabindustrygroup.com

Emergency Coordination Hotline (WhatsApp): +86 13951823978

We will respond to urgent inquiries as soon as possible. For non-urgent matters, our teams will reply promptly after September 27, 2026.

III. Safety Reminders

l All departments are requested to conduct safety inspections before the holiday to ensure that water, electricity, and equipment in office areas, production workshops, laboratories, and other workplaces are in a safe condition, and to eliminate potential safety hazards.

l All departments shall arrange proper work handovers before and after the holiday based on actual operational needs, ensuring the smooth operation of key business functions such as customer service and supply chain management.

l For relevant units including R&D and production bases as well as joint innovation platforms, any urgent matters shall be promptly reported and addressed in accordance with the company's emergency response procedures.

l During the holiday, all employees are advised to travel safely, keep communication channels open, and enjoy a pleasant holiday.

IV. Holiday Greetings

The Mid-Autumn Festival, also known as the Moon Festival, is one of China's most cherished traditional festivals. It falls on the fifteenth day of the eighth lunar month, when the moon is at its fullest and brightest. The festival embodies the profound Chinese cultural values of family reunion, gratitude, and harmony. Traditional customs include appreciating the full moon, eating mooncakes, lighting lanterns, and gathering with loved ones. The round shape of the moon and mooncakes symbolizes completeness and unity, reflecting the deep-rooted Chinese belief in the importance of family bonds and togetherness. On this festive occasion, we extend our best wishes to all partners and look forward to continuing our journey together. Wishing you all a joyful and peaceful Mid-Autumn Festival, happiness with your families, and the best of luck in all your endeavors.

Hereby notified.

China AAB Industry Technology Group

September 21, 2026