China BlueChemical : SECOND LETTER

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

22 September 2017 Dear Shareholders,

The Current Corporate Communications have been dispatched to you. If you have elected (or are deemed to have elected) to receive the Corporate Communications(Note) in printed form, the printed version of the Current Corporate Communications is enclosed.

The English and Chinese versions of the Current Corporate Communications are available on the Company's website (www.chinabluechem.com.cn) and the HKEXnews website (www.hkexnews.hk).

You are entitled at any time to change your choice of language and means of receiving future Corporate Communications from the Company by giving reasonable prior notice in writing or completing the enclosed Change Request Form and returning it by post in the envelope provided to the Company's H share registrar, Computershare Hong Kong Investor Services Limited, at 17M Floor, Hopewell Centre, 183 Queen's Road East, Wanchai, Hong Kong. If you have elected to access the Corporate Communications by electronic means through the Company's website but for any reason have difficulty in accessing the relevant Corporate Communication electronically, or wish to receive printed copies, the Company will promptly upon receiving your request send the printed form to you free of charge.

We encourage you to select the Corporate Communication published on the Company's website as it is a convenient and prompt method of communication for shareholders of the Company. It will also help to reduce consumption of the world's natural resources and save printing and mailing costs for the Company.

Should you have any queries in relation to this letter, please call our H share registrar's enquiry hotline on (852) 2862 8555 during business hours (9:00 am to 6:00 pm, Monday to Friday, excluding Hong Kong public holidays).

Yours faithfully, For and on behalf of

Company Secretary

Note: Corporate Communications refer to any document issued or to be issued by the Company to its H share shareholders including (without limitation) the annual report, interim report, notice of meeting, listing document, circular and proxy form.

* For identification purpose only