China Isotope & Radiation : CHANGE OF REGISTERED OFFICE ADDRESS

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CHINA ISOTOPE & RADIATION CORPORATION

中 國 同 輻 股 份 有 限 公 司

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

(Stock Code: 1763)

CHANGE OF REGISTERED OFFICE ADDRESS

The board of directors (the "Board") of China Isotope & Radiation Corporation (the "Company") hereby announces that the address of registered office has been changed to Room 418, South 4th Floor, Building 1, No. 66 Changwa Middle Street, Haidian District, Beijing, the PRC, 100089, with effect from 26 November 2019. All telephone and facsimile numbers, email address and website of the Company remain unchanged.

By order of the Board

China Isotope & Radiation Corporation

Meng Yanbin

Chairman

Beijing, the PRC, 3 December 2019

As at the date of this announcement, the Board comprises Mr. Meng Yanbin, Mr. Wu Jian and Mr. Du Jin, as executive Directors; Mr. Zhou Liulai, Mr. Chen Shoulei and Mr. Chen Zongyu as non-executive Directors; and Mr. Guo Qingliang, Mr. Meng Yan and Mr. Hui Wan Fai, as independent non-executive Directors.