ELL Environmental Holdings Limited — Proxy Solicitation & Information Statement 2019

May 21, 2019

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(a joint stock limited company incorporated in the People’s Republic of China with limited liability) (Stock Code: 0598)

SUPPLEMENTAL FORM OF PROXY FOR USE AT THE 2018 ANNUAL GENERAL MEETING (OR AT ANY ADJOURNMENT THEREOF)

No. of Shares to which this Supplemental Form of Proxy relates[1]

Type of Shares (A Shares or H Shares) to which this Supplemental Form of Proxy relates[2]

I/We[3]

of

being the registered holder(s) of shares of RMB1.00 each in the share capital of Sinotrans Limited (the “ Company ”), HEREBY APPOINT[4] the chairman of the Meeting (and at any adjournment thereof), or of as my/our proxy to attend for me/us at the 2018 Annual General Meeting (and at any adjournment thereof) (the “ AGM ” or “ Meeting ”) to be held at 1st Meeting Room, 11th Floor, Building 10/Sinotrans Tower B, No.5 Anding Road, Chaoyang District, Beijing 100029, the People’s Republic of China at 1:30 p.m. on 5 June 2019 for the purpose of considering and, if thought fit, passing the supplemental resolutions as set out in the supplemental notice of the AGM dated 21 May 2019 and at such Meeting (or at any adjournment thereof) to vote for me/us and in my/our name(s) in respect of the said resolutions as hereunder indicated.

• ORDINARY RESOLUTIONS[5,6,7]

• 1. To appoint Mr. Liu Yingjie as a supervisor of the Company.

FOR[8] AGAINST[8] ABSTAIN[8]

1. To approve the resolution in relation to proposed renewal of liability insurance for year 2019–2020 for the directors, supervisors, senior management members of the Company and others.

2. To approve the resolution in relation to the appointment of SHINEWING Certified Public Accountants LLP as the auditor of the Company for the year 2019 until the conclusion of the 2019 annual general meeting of the Company.

ORDINARY RESOLUTION (CUMULATIVE VOTING)[5,6,7]

FOR[8] AGAINST[8] ABSTAIN[8]

1. To appoint the following persons as directors of the Company:

14.1Mr. Su Jian as a director of the Company;

• 14.2Mr. Xiong Xianliang as a director of the Company; and

• 14.3Mr. Jiang Jian as a director of the Company.

Signature(s)[9]

Date

Notes:

1. Please insert the number of shares registered in your name(s) to which this supplemental form of proxy (the “ Supplemental Proxy Form ”) relates. If no number is inserted, this Supplemental Proxy Form will be deemed to relate to all the shares in the issued share capital of the Company registered in your name(s).

2. Please also insert the type of Shares (A Shares or H Shares) to which this Supplemental Proxy Form relates.

3. Please insert the full name(s) (in Chinese or in English, as shown in the register of members of the Company) and address(es) in BLOCK CAPITAL .

4. If any proxy other than the chairman is preferred, strike out “the chairman of the Meeting (and at any adjournment thereof), or” and insert the name and address of the proxy desired in the space provided. A member may appoint one or more proxies to attend and vote in his stead. ANY ALTERATION MADE TO THIS SUPPLEMENTAL PROXY FORM MUST BE INITIALLED BY THE PERSON(S) WHO SIGN(S) IT .

5. Please refer to the original proxy form for the 2018 Annual General Meeting published by the Company on the website of The Stock Exchange of Hong Kong Limited on 18 April 2019 (the “ Original Proxy Form ”) which was despatched together with the original notice of 2018 Annual General Meeting dated 18 April 2019 (the “ Original AGM Notice ”) for Resolutions 1 to 10. This Supplemental Proxy Form is for the purpose of the supplemental resolutions set out in the supplemental notice of the AGM dated 21 May 2019 (the “Supplemental AGM Notice”) and only serves as a supplement to and will not revoke the Original Proxy Form.

6. This Supplemental Proxy Form will not affect the validity of the Original Proxy Form duly completed and delivered by you in respect of the resolutions set out in the Original AGM Notice. If you have already validly appointed a proxy to act for you at the AGM under the Original Proxy Form but have not completed and returned this Supplemental Proxy Form, your proxy will have the right to vote at his/her discretion with respect to the supplemental resolutions set out in the Supplemental AGM Notice .

7. If you do not duly complete and deliver the Original Proxy Form but have duly completed and delivered this Supplemental Proxy Form and validly appointed a proxy to attend and act for you at the AGM, your proxy will be entitled to vote at his/her discretion on Resolutions 1 to 10 set out in the Original AGM Notice .

8. IMPORTANT: IF YOU WISH TO VOTE FOR A RESOLUTION, TICK THE BOX MARKED “FOR”. IF YOU WISH TO VOTE AGAINST A RESOLUTION, TICK THE BOX MARKED “AGAINST”. IF YOU WISH TO ABSTAIN FROM VOTING ON A RESOLUTION, TICK THE BOX MARKED “ABSTAIN” . Failure to tick either box will entitle your proxy to cast your vote or abstain at his discretion. Your proxy will also be entitled to vote at his discretion on any resolution properly put to the said Meeting other than those referred to in the Original AGM Notice and the Supplemental AGM Notice.

9. A member of the Company entitled to attend and vote at the AGM convened by the above notice is entitled to appoint one or more proxies to attend and, on a poll, vote on his behalf. A proxy need not be a member of the Company. Where there are joint registered holders of any share, any one of such persons may vote at the Meeting, either personally or by proxy, in respect of such share as if he were solely entitled thereto, but if more than one of such joint holders are present at the Meeting, personally or by proxy, then one of the persons so present whose name stands first on the register in respect of such share shall alone be entitled to vote in respect thereof.

10. The instrument appointing a proxy shall be in writing under the hand of the appointer or of his attorney duly authorized by the appointer in writing or if the appointer is a legal person, either under its seal or under the hand of its director or its senior officer or its duly authorized attorney.

11. In order to be valid, for A shareholders, the Supplemental Proxy Form, together with a duly notarised power of attorney or other document of authority, if any, under which the form is signed must be deposited at the office of the Company at 10th Floor, Building 10/Tower B, No. 5 Anding Road, Chaoyang District, Beijing (Tel: (8610) 5229 5721) not later than 24 hours before the time for holding the AGM. In order to be valid, for H shareholders, the above documents must be deposited at Computershare Hong Kong Investor Services Limited, the Company’s Share Registrar in Hong Kong, at 17M Floor, Hopewell Centre, 183 Queen’s Road East, Wan Chai, Hong Kong within the same period.

12. The cumulative voting method shall be adopted for the voting of Resolution No. 14. The cumulative voting method refers to the voting for the election of directors, independent directors or supervisors where each share is entitled to the same number of votes which equals to the total number of directors, independent directors or supervisors to be elected, and shareholders may consolidate their voting rights when casting a vote.