Notification Letter to Shareholders: Notice of Publication of (1) Circular dated 11 April 2018 in relation to Continuing Connected Transactions - Revision of Existing Annual Caps under the Services Agreements and the Midstream Services Agreement, and Supplemental Notice of Annual General Meeting, and (2) Revised Proxy Form, and Request Form

NOTIFICATION LETTER TO SHAREHOLDER

敬啟者：

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請注æ" é-£ä¸‹æœ‰æ¬Šéš¨æ™'以書é¢æ-¹å¼é€šçŸ¥æœ¬å…¬å¸è'¡æ¬Šç™»è¨˜è™•ï¼Œæˆ-電郵至本公å¸mail@powerassets.com，以更æ"¹ é-£ä¸‹ æ"¶å-本公å¸å…¬å¸é€šè¨Šä¹‹æ-¹å¼ï¼ˆå°åˆ·æœ¬æˆ-é€éŽæœ¬å…¬å¸ç¶²ç«™ä¹‹é›»å­æ-¹å¼ï¼‰åŠï¼æˆ-語言版本ã€'

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11 April 2018

Dear Shareholder(s),

Notice of Publication of (1) Circular dated 11 April 2018 in relation to Continuing Connected Transactions-Revision of Existing Annual Caps under the Services Agreements and the Midstream Services Agreement, and Supplemental Notice of Annual General Meeting, and (2) Revised Proxy Form (collectively "Current Corporate Communications")

The Annual General Meeting of the Company will be held at the Grand Ballroom, 1st Floor, Harbour Grand Kowloon, 20 Tak Fung Street, Hung Hom, Kowloon, Hong Kong on Wednesday, 9 May 2018 at2:15 p.m.TheCompany's Current CorporateCommunications areavailable on the Company's website atwww.powerassets.comand the HKEXnews website atwww.hkexnews.hk.You may access the Current Corporate Communications by clicking "Investor Relations" on the home page of the Company's website and selecting "Notices, Announcements & Circulars"or by searching on the HKEXnews website.

Shareholders who have elected (or are deemed to have consented) to accessthe Company's Corporate Communications* posted on the Company's website insteadof receiving printed copies, if for any reason, have difficulty in accessing the CurrentCorporate Communications via the Company's website, will upon request to the Company or the share registrar, promptly be sentthe Current Corporate Communications in printed form free of charge. Both the Chinese and English versions of the Current Corporate Communications are contained in one booklet / document.

If you wish to receive printed copy of the Current Corporate Communications, please complete the Request Form on the reverseside and return it to the Company's share registrar, Computershare Hong Kong Investor Services Limited, by using the mailinglabel at the bottom of the Request Form. There is no need to affix a stamp if posted in Hong Kong; otherwise, please affix anappropriate stamp and return it to the share registrar's address at 17M Floor, Hopewell Centre, 183 Queen's Road East, Wanchai,Hong Kong. The Request Form may also be downloaded from the Company's website atwww.powerassets.comor the HKEXnews website atwww.hkexnews.hk.

Please note that you are entitled to change your choice as to the means of receipt (i.e. in printed form or by electronic means throughthe Company's website) and/or the language of the Company's Corporate Communications at any time by notice in writing to theCompany's share registrar or by email to the Company atmail@powerassets.com.

Should you have any queries relating to any of the above matters, please call the share registrar's telephone hotline at(852) 2862 8688 during business hours from 9:00 a.m. to 6:00 p.m. Monday to Friday (excluding public holidays) or send an email tomail@powerassets.com.

Yours faithfully,

Alex Ng

Company Secretary

*Corporate Communications include but are not limited to (a) directors' report, annual accounts together with a copy of the auditor's reportand, where applicable, summary financial report; (b) interim report and, where applicable, summary interim report; (c) notice of meeting; (d) listing document; (e) circular; and (f) proxy form.

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Name and Address of Shareholder:

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REQUEST FORM

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I/We have elected (or are deemed to have consented) to access the Current Corporate Communications posted on theCompany'swebsite instead of receiving a printed copy. I/We would like to request for a printed copy of the Current Corporate Communications.

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You are required to fill in the details if you download this Request Form from the Company's website or the website of Hong Kong Exchanges and Clearing Limited.

æ"¶é›†å€‹äººè³‡æ-™è²æ˜ŽPERSONAL INFORMATION COLLECTION STATEMENT本è²æ˜Žæ‰€æŒ‡çš"「個人資æ-™ã€å…·æœ‰ã€Šå€‹äººè³‡æ-™ï¼ˆç§éš±ï¼‰æ¢ä¾‹ã€‹ï¼ˆç¬¬486ç« ï¼‰ï¼ˆã€Œç§éš±æ¢ä¾‹ã€ï¼‰è³¦äºˆã€Œå€‹äººè³‡æ-™ã€ä¹‹ç›¸åŒæ¶µç¾©ï¼Œç•¶ä¸­åŒ…括 地å€åŠè¯çµ¡é›»è©±è™Ÿç¢¼ã€'

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"Personal Data"in this statement has the same meaning as"personal data"in the Personal Data (Privacy) Ordinance, Cap 486 ("PDPO"), which includes your name, mailing address and contact telephone number.

é-£ä¸‹æ-¼æœ¬è¡¨æ ¼æ‰€æä¾›çš"個人資æ-™å°‡ç"¨ä»¥è™•ç† é-£ä¸‹è¦æ±'ç´¢å-相é-œå…¬å¸é€šè¨Šå°åˆ·æœ¬ä¹‹æŒ‡ç¤ºã€' é-£ä¸‹ä¹ƒåŸºæ-¼è‡ªé¡˜æ€§è³ªæ供有é-œè³‡æ-™ï¼ŒæƒŸå€˜ é-£ä¸‹ä¸¦ç"¡ æ供個人資æ-™ï¼Œæœ¬å…¬å¸å¯èƒ½ç"¡æ³•è™•ç† é-£ä¸‹çš"指示ã€'

Your Personal Data provided in this form will be used in connection with processing your request for obtaining printed copy(ies) of the relevant Corporate Communication(s). Your supply of Personal Data is on a voluntary basis. However, we may not be able to process your request unless you provide us with your Personal Data.

本公å¸å¯å°±ä¸Šè¿°ç"¨é€"å°‡ é-£ä¸‹çš"個人資æ-™æŠ«éœ²æˆ-轉移給本公å¸çš"è'¡æ¬Šç™»è¨˜è™•åŠï¼æˆ-å…¶ä»-å…¬å¸æˆ-團é«"，æˆ-按法例è¦å®šï¼ˆä¾‹å¦'應法庭å'½ä»¤æˆ-執法機é-œçš" è¦æ±'）作出披露æˆ-轉移，並將在é©ç•¶æœŸé-"å…§ä¿ç•™è©²ç­‰å€‹äººè³‡æ-™ä½œæ ¸å¯¦åŠè¨˜éŒ"ç"¨é€"ã€'

Your Personal Data will be disclosed or transferred to the Company's share registrar and/or other companies or bodies for the purpose stated above, or when it is required to do so by law, for example, in response to a court order or a law enforcement agency's request, and will be retained for such period as may be necessary for our verification and record purpose.

é-£ä¸‹æœ‰æ¬Šæ ¹æ"šç§éš±æ¢ä¾‹æŸ¥é-±åŠï¼æˆ-æ›´æ­£ é-£ä¸‹çš"個人資æ-™ã€'任何查é-±åŠï¼æˆ-æ›´æ­£ é-£ä¸‹å€‹äººè³‡æ-™çš"è¦æ±'，å‡é ˆé€éŽä»¥ä¸‹å…¶ä¸­ä¸€é …é€"å¾'以書é¢æ-¹å¼æ出：

You have the right to request access to and/or correction of your Personal Data in accordance with the provisions of the PDPO. Any such request for access to and/or correction of your Personal Data should be in writing by either of the following means:

郵å¯"：

香港ç£ä»"皇åŽå¤§é"æ±183號åˆå'Œä¸­å¿ƒ17Mæ¨" 香港中央證券登記有é™å…¬å¸ 個人資æ-™ç§éš±ä¸»ä»»

電郵：

hkinfo@computershare.com.hkBy mail to:Personal Data Privacy Officer

By email to:

Computershare Hong Kong Investor Services Limited 17M Floor, Hopewell Centre, 183 Queen's Road East, Wanchai, Hong Konghkinfo@computershare.com.hk

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Please cut the mailing label and stick it on the envelope

to return this Request Form to us.

No postage stamp necessary if posted in Hong Kong.

香港中央證券登記有é™å…¬å¸Computershare Hong Kong Investor Services Limited簡便回郵號碼Freepost No. 37香港Hong Kong

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