Pursuant to the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited, the Company disseminates and publishes Corporate Communications to the shareholders of the Company by electronic means on the website of the Company at  http://ctz.elcharcomxl.com and the HKExnews website of The Stock Exchange of Hong Kong at www.hkexnews.hk.

"Corporate Communications" mean any documents issued or to be issued by the Company for the information or action by any of its shareholders, including but not limited to directors' reports and annual accounts together with auditors' reports, interim reports, notices of meetings, listing documents, circulars, and proxy forms.

The reply form for registered shareholders and non-registered shareholders of the Company to select the method of receiving Corporate Communications and/or request printed copies can be downloaded through the following links:

- Letter to Registered Shareholder - Arrangement of Electronic Dissemination of Corporate Communications and Reply Form

- Letter to Non-registered Shareholder - Arrangement of Electronic Dissemination of Corporate Communications and Reply Form

At the same time, shareholders can also download the above reply form from the "HKEXNews" website of The Stock Exchange of Hong Kong:

- Letter to Registered Shareholder - Arrangement of Electronic Dissemination of Corporate Communications and Reply Form

- Letter to Non-registered Shareholder - Arrangement of Electronic Dissemination of Corporate Communications and Reply Form

If the shareholder has provided his or her valid email address, the shareholder will receive an email notification each time the Company publishes Actionable Corporate Communication. If shareholders wish to receive Corporate Communications in printed form, please fill in and submit the above reply form to the Company's share registrar at 17M Floor, Hopewell Centre, 183 Queen's Road East, Wan Chai, Hong Kong, or send an email to recbio.ecom@computershare.com.hk specifying the shareholder's name, address and request to receive the Corporate Communications in printed form. Please note that the instruction to receive future Corporate Communications in printed form will be valid for one year starting from the receipt date of the shareholder's instruction.