SICC Co., Ltd. — AGM Information 2026

May 7, 2026

SICC

SICC CO., LTD.

山東天岳先進科技股份有限公司

(A joint stock company incorporated in the People's Republic of China with limited liability)

(“The Company”)

(Stock Code: 2631)

REPLY SLIP FOR THE ANNUAL GENERAL MEETING

TO BE HELD ON FRIDAY, 29 MAY 2026 OR

AT ANY ADJOURNMENT THEREOF

To: the Company

I/We (Note 1)

of

being the registered holder(s) of (Note 2) H Share(s) of RMB1.00

each in the share capital of the Company, hereby inform the Company that I/we wish to attend (in person or by a proxy) the annual general meeting of the Company to be held at 14:30 on Friday, 29 May 2026 at the Conference Room of SICC Company, No. 99, South Tianyue Road, Huaiyin District, Jinan City, Shandong Province, or any adjournment thereof.

Date: ___ 2026

Signature(s): ___

Notes:

1. Please insert full name(s) (in Chinese or and English) and registered address(es) (as shown in the register of members) in BLOCK LETTERS.
2. Please insert the number of shares registered under your name(s).
3. To be valid, this reply slip must be duly completed and signed, and delivered on or before 14:30 on Thursday, 28 May 2026 to the H share registrar of the Company.
4. The address and the contact details of Computershare Hong Kong Investor Services Limited, the H share registrar of the Company, are set out below:

Shops 1712-1716,

17/F, Hopewell Centre

183 Queen's Road East

Wan Chai, Hong Kong

Telephone: (+852) 2862 8555

Fax: (+852) 2865 0990