Lansen Pharmaceutical : LETTER TO SHAREHOLDERS AND CHANGE REQUEST FORM

LANSEN PHARMACEUTICAL HOLDINGS LIMITED

朗生醫藥控股有限公司

(incorporated in the Cayman Islands with limited liability)

（於開曼群島註冊成立的有限公司）

（Stock Code 股份代號：503）

10 September 2019

Dear Shareholder(s),

Notification of publication of 2019 Interim Report ("Current Corporate Communication")

We hereby notify you that the Current Corporate Communication of Lansen Pharmaceutical Holdings Limited (the "Company"), in both English and Chinese, are now available on the Company's website at www.lansen.com.cnand HKExnews website at www.hkexnews.hk. You may access the Current Corporate Communication by clicking "Investor Relations" on the home page of the Company's website or browsing through the HKExnews website.

If you wish to receive a printed copy of the Current Corporate Communication, please complete the Change Request Form on the reverse side and return it to our Company's Hong Kong share registrar, Tricor Investor Services Limited, by post using the pre-paid mailing label provided (if you post in Hong Kong). Otherwise, please affix appropriate postage.

You have the right at any time by reasonable notice in writing to the Company (c/o Tricor Investor Services Limited) or by email to [e-mail] change the choice of language and means of receipt of the Corporate Communication(s). Even if you have chosen to receive all future Corporate Communication(s) using electronic means but for any reason have difficulty in receiving or gaining access to the Corporate Communication(s), the Company will, upon your request, promptly send the Corporate Communication(s) to you in printed form free of charge.

Should you have any queries in relation to this letter, please call the hotline of Tricor Investor Services Limited at [phone] during business hours from 9:00 a.m. to 6:00 p.m., Monday to Friday, excluding public holidays.

Yours faithfully,

For and on behalf of

Lansen Pharmaceutical Holdings Limited

Wu Zhen Tao

Chairman

• Corporate Communication(s) refer to any document(s) issued or to be issued by the Company for the information or action of any holders of its securities, including but not limited to annual reports, interim reports, notice of meetings, listing documents, circulars and proxy forms.

致各位股東：

二零一九年中期報告（「本次公司通訊」）之發佈通知

我司現謹通知 閣下，朗生醫藥控股有限公司（「本公司」）之本次公司通訊的英文及中文版本，現已登載於本公司網站www.lansen.com.cn及香港交易所披露易網站www.hkexnews.hk。請在本公司網站主頁的「投資者關係」或在香港交易所披露易網站瀏覽有關文件。

如 閣下擬收取本次公司通訊之印刷本，請填妥本函背面之變更申請表並利用預付郵寄標籤（如在香港投寄）寄回本公司之香港股份 過戶登記處卓佳證券登記有限公司。否則請貼上適當之郵資。

閣下有權隨時通過卓佳證券登記有限公司或發送電郵至[e-mail]向本公司發出合理時間的書面通知，以更改 收取公司通訊文件語言版本及收取方式之選擇。即使 閣下選擇以電子途徑收取日後所有公司通訊文件，惟如因任何理由以致收取或 接收公司通訊文件時遇上困難，則本公司將於接獲 閣下要求後，隨即向 閣下免費寄發公司通訊文件之印刷本。

倘 閣下對此函件有任何疑問，請於星期一至星期五（公眾假期除外）辦公時間上午九時至下午六時，致電卓佳證券登記有限公司之電 話熱線[phone]查詢。

朗生醫藥控股有限公司

主席

吳鎮濤

謹啟

• 公司通訊文件指本公司發出或將發出以供其任何證券持有人參照或採取行動之任何文件，包括但不限於年報、中期報告、會議通 告、上市文件、通函及代表委任表格。

二零一九年九月十日

Change Request Form 變更申請表

To: Lansen Pharmaceutical Holdings Limited (the "Company")	致：	朗生醫藥控股有限公司（「公司」）
(Stock Code: 503)		（股份代號：503）
c/o Tricor Investor Services Limited		經卓佳證券登記有限公司
Level 54, Hopewell Centre		香港皇后大道東183號
183 Queen's Road East, Hong Kong		合和中心54樓

Part A - To receive printed version of the Current Corporate Communications: 甲部－收取最新公司通訊的印刷版本：

I/We have chosen to read the Current Corporate Communications posted on the Company's website but would like to receive: 本人╱我們已選擇瀏覽刊登於公司網站的最新公司通訊，惟欲收取：

the printed version of 2019 Interim Report.

二零一九年中期報告印刷本。

Part B - To change choice for future Corporate Communication(s): (Please mark ONLY ONE (X) of the following boxes) 乙部－選擇更改日後公司通訊：（請從下列選擇中，僅在其中一個空格內劃(X)號）

I/We would like to change my/our previous choice and request to receive all future Corporate Communication(s) of the Company issued not less than 10 business days after the date hereof in the following manner:

本人╱我們欲更改之前的選擇，並要求通過以下方式，收取日後公司發出不少於本申請表日期後十個營業日的所有公司通訊：

read the Website Version of all future Corporate Communication(s) published on the Company's website in place of receiving printed copies,
and to receive an email notification of the posting of the Corporate	Communication(s) on the Company's website to my/our email address
at				；OR
		瀏覽在公司網站發佈之公司通訊網上版本，以代替印刷本，並收取有關公司通訊登載在公司網站的電郵通知，電郵通知請發送至本人╱吾等
之電郵地址						；或
to receive both the printed English and Chinese versions of all future Corporate Communication(s).
同時收取公司通訊文件之英文及中文印刷本。
Signature:	Phone Number:
簽署：	聯絡電話：
Name:
姓名：	(English)		(Chinese)
				（英文）		（中文）

Notes:

附註：

1. Please complete your choice of means of receipt and/or language(s) of all future Corporate Communication(s) and all your details clearly.
   請 閣下清楚填妥選擇收取公司通訊文件之語言版本及╱或收取方式及所有資料。
2. Corporate Communication(s) refer to any document(s) issued or to be issued by the Company for the information or action of any holders of its securities, including but not limited to
   (a) the directors' report, its annual accounts together with a copy of the auditor's report and, where applicable, its summary financial report; (b) the interim report and, where applicable, its summary interim report; (c) a notice of meeting; (d) a listing document; (e) a circular; and (f) a proxy form.
   公司通訊文件指本公司發出或將發出以供其任何證券持有人參照或採取行動之任何文件，包括但不限於(a)董事會報告、其年度賬目連同核數師報告及其財務摘要報告（如適用）；
   (b)中期報告及中期摘要報告（如適用）；(c)會議通告；(d)上市文件；(e)通函；及(f)代表委任表格。
3. If your shares are held in joint names, the shareholder whose name stands first on the register of members of the Company in respect of the joint holding should sign on this Change Request Form in order to be valid.
   如屬聯名股東，則本變更申請表須由該名於本公司名冊上就聯名持有股份其姓名位列首位的股東簽署，方為有效。
4. The above instructions will apply to all future Corporate Communication(s) to be sent to shareholders of the Company until you notify otherwise by reasonable notice in writing to the Company c/o the Hong Kong share registrar of the Company, Tricor Investor Services Limited, at Level 54, Hopewell Centre, 183 Queen's Road East, Hong Kong or by email to [e-mail].
   上述指示適用將寄發予本公司股東之所有公司通訊，直至閣下發出合理時間的書面通知予本公司之香港股份過戶登記處卓佳證券登記有限公司，地址為香港皇后大道東183號合和 中心54樓或以電郵方式發送至[e-mail]另作選擇為止。
5. Shareholders are entitled to change the choice of means of receipt or language of the Corporate Communication(s) at any time by reasonable notice in writing to the Company c/o Tricor Investor Services Limited at Level 54, Hopewell Centre, 183 Queen's Road East, Hong Kong or by email to [e-mail].
   股東有權隨時經卓佳證券登記有限公司向本公司發出合理時間的書面通知，地址為香港皇后大道東183號合和中心54樓或以電郵方式發送至[e-mail]，要求 更改收取公司通訊之語言版本及方式。
6. This Change Request Form with no box marked, with more than one box marked, or otherwise incorrectly completed will be voided at the discretion of the Company.
   在本變更申請表上，如沒有在方格內劃上(X)號，或在超過一個方格內劃上(X)號或填寫不正確，在本公司酌情決定後將告無效。

PERSONAL INFORMATION COLLECTION STATEMENT

"Personal Data" in this statement has the same meaning as "personal data" defined in the Personal Data (Privacy) Ordinance, Chapter 486 of the Laws of Hong Kong ("PDPO"). Your supply of the Personal Data is on a voluntary basis and for the purpose of processing your instructions as stated in this Form (the "Purposes"). If you fail to supply sufficient information, the Company may not be able to process your instructions. The Company may disclose or transfer the Personal Data to its subsidiaries, its Share Registrar and/or third party service provider who provides administrative, computer and other services to the Company for use in connection with the Purposes and to such parties who are authorised by law to request the information or are otherwise relevant for the Purposes and need to receive the information. The Personal Data will be retained for such period as may be necessary to fulfil the Purposes (including for verification and record purposes). Request for access to and/or correction of the Personal Data can be made in accordance with the provisions of the PDPO and any such request should be in writing and sent to the Privacy Compliance Officer of Tricor Investor Services Limited at the above address.

收集個人資料聲明

本聲明中所指的「個人資料」與香港法例第486章《個人資料（私隱）條例》中「個人資料」的涵義相同。 閣下是自願提供個人資料，以用於處理 閣下在本表格上所述的指示（「該等用途」）。 如 閣下未能提供足夠資料，本公司有可能無法處理 閣下的指示。本公司可就所述的該等用途，將個人資料披露或轉移給本公司的附屬公司、股份登記處及╱或向為本公司提供行 政、電腦及其他服務的第三者服務供應商，以及其他獲法例授權而要求取得有關資料的人士或其他與上述所列出的該等用途有關以及需要接收有關資料之人士。個人資料將在適當期 間保留作履行所述的該等用途（包括作核實及紀錄用途）。有關查閱及╱或更正個人資料的要求可按照《個人資料（私隱）條例》提出，而有關要求須以書面方式郵寄至卓佳證券登記有限 公司（地址如上）的私隱條例事務主任。



Please cut and paste the mailing label onto an envelope and

return the Request Form to us.

No postage is required for local mailing

當 閣下寄回此表格時，請將此郵寄標籤剪貼於信封上。

如在本港投寄， 閣下無需支付郵費或貼上郵票

• Please cut along the dotted line 請沿虛線剪下）

Mailing Label 郵寄標籤

Tricor Investor Services Limited

卓佳證券登記有限公司

Freepost No. 簡便回郵號碼：37

Hong Kong 香港