FF305

翌日披露報表

(股份發行人──已發行股份或庫存股份變動、股份購回及/或在場内出售庫存股份)

表格類別：股票狀態：新提交

公司名稱：中石化石油工程技術服務股份有限公司

呈交日期：2024年9月12日

如上市發行人的已發行股份或庫存股份出現變動而須根據《香港聯合交易所有限公司（「香港聯交所」）證券上市規則》(「《主板上市規則》」)第13.25A條 / 《香港聯合交易所有限公司GEM證券上市規則》(「《GEM上市規則》」)第17.27A條作出披露，必須填妥第一章節 。

第一章節

1. 股份分類 普通股 股份類別 H 於香港聯交所上市 是

證券代號(如上市)01033說明

A. 已發行股份或庫存股份變動

已發行股份（不包括庫存股份）變動庫存股份變動

事件每股發行/出售價(註4)

已發行股份（不包括庫存股份）數佔有關事件前的現有已發已發行股份總數

目行股份（不包括庫存股庫存股份數目份）數目百分比(註3)

於下列日期開始時的結存(註1)2024年9月11日541496148205414961482

1).其他(請註明)%

見B部分變動日期2024年9月12日

於下列日期結束時的結存(註5及6)2024年9月12日541496148205414961482

B. 贖回/購回股份 (擬註銷但截至期終結存日期尚未註銷) (註5及6)

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1). 為註銷而回購但尚未註銷的股票 1100000 0.02 % HKD 0.527

變動日期2024年8月21日

2). 為註銷而回購但尚未註銷的股票 570000 0.01 % HKD 0.5142

變動日期2024年9月4日

3). 為註銷而回購但尚未註銷的股票 380000 0.01 % HKD 0.51

變動日期2024年9月5日

4). 為註銷而回購但尚未註銷的股票 850000 0.02 % HKD 0.4893

變動日期2024年9月10日

5). 為註銷而回購但尚未註銷的股票 1018000 0.02 % HKD 0.4896

變動日期2024年9月11日

6). 為註銷而回購但尚未註銷的股票 1010000 0.02 % HKD 0.4896

變動日期2024年9月12日

第 2 頁 共 7 頁 v 1.3.0FF305確認不適用

第一章節註釋：

1. 請填上根據《主板上市規則》第13.25A條 / 《GEM上市規則》第17.27A條刊發的上一份「翌日披露報表」或根據《主板上市規則》第13.25B條 / 《GEM上市規則》第17.27B條刊發的上

一份「月報表」（以較後者為準）的期終結存日期。

2. 請列出所有根據《主板上市規則》第13.25A條 / 《GEM上市規則》第17.27A條須披露的已發行股份或庫存股份變動，連同有關的變動日期。每個類別須獨立披露，並提供充足資料，以

便使用者可在上市發行人的「月報表」內識別有關類別。例如：因多次根據同一股份期權計劃行使股份期權或多次根據同一可換股票據進行換股而多次發行的股份，必須綜合計算，在同一個類別下披露。然而，若因根據兩項股份期權計劃行使股份期權或根據兩項可換股票據進行換股而進行的發行，則必須分開兩個類別披露。

3.上市發行人已發行股份（不包括庫存股份）數目變動的百分比將參照該份「翌日披露報表」所披露的已發行股份（不包括庫存股份）的期初結存計算。

4.在購回/贖回股份的情況下，「每股發行/出售價」應理解為「每股購回價」或「每股贖回價」。

若股份曾以超過一個每股價格發行/出售/購回/贖回，則須提供每股成交量加權平均價格。

5.期終結存日期為最後一宗披露的相關事件的日期。

6. 就購回/贖回股份而言，若有關事件經已發生，則須作出相關披露（受《主板上市規則》第10.06(4)(a) 13.25A及13.31條 / 《GEM上市規則》第13.13(1) 17.27A及17.35條的規定所規限），即使該等購回/贖回股份尚未被註銷。

若購回/贖回股份將於期終結存日期之後購回/贖回結算完成之時予以註銷，則該等購回/贖回股份仍屬A部所述期終結存當日的已發行股份的一部分。該等購回/贖回股份的詳情應在B部作出披露。

7. (i) 至 (viii) 項為確認内容的建議格式。上市發行人可按個別情況就不適用的項目予以修訂。

8.在此「相同」指：

-證券的面值相同，須繳或繳足的股款亦相同；

-證券有權領取同一期間內按同一息率計算的股息╱利息，下次派息時每單位應獲派發的股息╱利息額亦完全相同（總額及淨額）；及-證券附有相同權益，如不受限制的轉讓、出席會議及於會上投票，並在所有其他方面享有同等權益。

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如上市發行人購回股份而須根據《主板上市規則》第10.06(4)(a)條 / 《GEM上市規則》第13.13(1) 條作出披露，則亦須填妥第二章節。

購回報告

第二章節

1. 股份分類 普通股 股份類別 H 於香港聯交所上市 是

證券代號(如上市)01033說明

A. 購回報告

交易日購回股份數目購回方式(註1)每股購回價或每股最高購回價(元)每股最低購回價(元)付出的價格總額(元)

1). 2024年9月12日 1010000 於本交易所進行 HKD 0.495 HKD 0.485 HKD 494500

合共購回股份總數 1010000 合共付出的價格總額 (元) HKD 494500

購回股份（擬註銷）數目1010000

購回股份（擬持作庫存股份）數目

B. 在本交易所作主要上市的發行人的其他資料

1).購回授權的決議獲通過的日期2024年6月12日

2).發行人可根據購回授權購回股份的總數541496148

3). 根據購回授權在本交易所或其他證券交易所購回股份的數目 (a) 4928000

4).佔購回授權的決議獲通過當日的已發行股份（不包括庫存股份）數目的百分比0.09%

(a) x 100 / 購回授權的決議獲通過當日的已發行股份（不包括庫存股份）數目

5). 在A部所述的股份購回後再進行任何新股發行或庫存股份再出售或轉讓所適用的暫止期 (註 2) 截至 2024年10月12日

我們確認，上文A部所述於貴交易所進行的購回是根據《主板上市規則》的規定進行，而已呈交貴交易所日期為2024年4月22日的說明函件所載資料並無任何重大變動。

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第二章節註釋：

1.請註明該次購回是於本交易所、另一家證券交易所(列明交易所名稱)、以私人安排方式或以全面收購方式進行。

2. 除《主板上市規則》第10.06(3)(a)條 / 《GEM上市規則》第13.12條所述的豁免外，未經本交易所批准，發行人於任何一次購回股份後的30天內，不論該次購回是否在本交易所進行，均不

得(i) 發行新股，或出售或轉讓任何庫存股份；或(ii)公布發行新股，或出售或轉讓任何庫存股份的計劃。

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如上市發行人在本交易所或其上市所在的任何其他證券交易所出售庫存股份而須根據《主板上市規則》第10.06B條 / 《GEM上市規則》第13.14B條作出披露，則亦須填妥第三章節。

在場内出售庫存股份報告不適用

呈交者：沈澤宏

(姓名)

職銜：公司秘書

(董事、秘書或其他獲正式授權的人員)

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Next Day Disclosure Return

(Equity issuer - changes in issued shares or treasury shares share buybacks and/or on-market sales of treasury shares)

Instrument: Equity issuer Status: New Submission

Name of Issuer: Sinopec Oilfield Service Corporation

Date Submitted: 12 September 2024

Section I must be completed by a listed issuer where there has been a change in its issued shares or treasury shares which is discloseable pursuant to rule 13.25A of the Rules Governing the

Listing of Securities on The Stock Exchange of Hong Kong Limited (the “Exchange”) (the “Main Board Rules”) or rule 17.27A of the Rules Governing the Listing of Securities on GEM of the

Exchange (the “GEM Rules”).Section I

1. Class of shares Ordinary shares Type of shares H Listed on the Exchange Yes

Stock code (if listed) 01033 Description

A. Changes in issued shares or treasury shares

Changes in issued shares Changes in treasury

(excluding treasury shares) shares

As a % of existing

Events Issue/ selling price per Total number of issued

Number of issued number of issued share (Note 4) shares

shares (excluding shares (excluding Number of treasury

treasury shares) treasury shares) before sharesthe relevant event

(Note 3)

Opening balance as at (Note 1) 11 September 2024 5414961482 0 5414961482

1). Other (please specify) %

See Part B

Date of changes 12 September 2024

Closing balance as at (Notes 5 and 6) 12 September 2024 5414961482 0 5414961482

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B. Shares redeemed or repurchased for cancellation but not yet cancelled as at the closing balance date (Notes 5 and 6)

1). Shares repurchased for cancellation but not yet cancelled 1100000 0.02 % HKD 0.527

Date of changes 21 August 2024

2). Shares repurchased for cancellation but not yet cancelled 570000 0.01 % HKD 0.5142

Date of changes 04 September 2024

3). Shares repurchased for cancellation but not yet cancelled 380000 0.01 % HKD 0.51

Date of changes 05 September 2024

4). Shares repurchased for cancellation but not yet cancelled 850000 0.02 % HKD 0.4893

Date of changes 10 September 2024

5). Shares repurchased for cancellation but not yet cancelled 1018000 0.02 % HKD 0.4896

Date of changes 11 September 2024

6). Shares repurchased for cancellation but not yet cancelled 1010000 0.02 % HKD 0.4896

Date of changes 12 September 2024

Page 2 of 6 v 1.3.0FF305

Confirmation Not applicable

Notes to Section I:

1. Please insert the closing balance date of the last Next Day Disclosure Return published pursuant to Main Board Rule 13.25A / GEM Rule 17.27A or Monthly Return pursuant to Main

Board Rule 13.25B / GEM Rule 17.27B whichever is the later.

2. Please set out all changes in issued shares or treasury shares requiring disclosure pursuant to Main Board Rule 13.25A / GEM Rule 17.27A together with the relevant dates of

changes. Each category will need to be disclosed individually with sufficient information to enable the user to identify the relevant category in the listed issuer's Monthly Return. For

example multiple issues of shares as a result of multiple exercises of share options under the same share option scheme or of multiple conversions under the same convertible note

must be aggregated and disclosed as one category. However if the issues resulted from exercises of share options under 2 share option schemes or conversions of 2 convertible

notes these must be disclosed as 2 separate categories.

3. The percentage change in the number of issued shares (excluding treasury shares) of the listed issuer is to be calculated by reference to the opening balance of the number of issued

shares (excluding treasury shares) being disclosed in this Next Day Disclosure Return.

4. In the case of a share repurchase or redemption the “issue/ selling price per share” shall be construed as “repurchase price per share” or “redemption price per share”.

Where shares have been issued/ sold/ repurchased/ redeemed at more than one price per share a volume-weighted average price per share should be given.

5. The closing balance date is the date of the last relevant event being disclosed.

6. For repurchase or redemption of shares disclosure is required when the relevant event has occurred (subject to the provisions of Main Board Rules 10.06(4)(a) 13.25A and 13.31 /

GEM Rules 13.13(1) 17.27A and 17.35) even if the repurchased or redeemed shares have not yet been cancelled.If repurchased or redeemed shares are to be cancelled upon settlement of such repurchase or redemption after the closing balance date they shall remain part of the issued shares as

at the closing balance date in Part A. Details of these repurchased or redeemed shares shall be disclosed in Part B.

7. Items (i) to (viii) are suggested forms of confirmation. The listed issuer may amend the item(s) that is/are not applicable to meet individual cases.

8. “Identical” means in this context:

- the securities are of the same nominal value with the same amount called up or paid up;

- they are entitled to dividend/interest at the same rate and for the same period so that at the next ensuing distribution the dividend/interest payable per unit will amount to

exactly the same sum (gross and net); and

- they carry the same rights as to unrestricted transfer attendance and voting at meetings and rank pari passu in all other respects.Page 3 of 6 v 1.3.0FF305

Section II must also be completed by a listed issuer where it has made a repurchase of shares which is discloseable under Main Board Rule 10.06(4)(a) / GEM Rule 13.13(1).Repurchase report

Section II

1. Class of shares Ordinary shares Type of shares H Listed on the Exchange Yes

Stock code (if listed) 01033 Description

A. Repurchase report

Trading date Number of shares Method of repurchase

Repurchase price per share or

repurchased (Note 1) highest repurchase price per

Lowest repurchase

share $ price per share $

Aggregate price paid $

1). 12 September 2024 1010000 On the Exchange HKD 0.495 HKD 0.485 HKD 494500

Total number of shares

repurchased 1010000 Aggregate price paid $ HKD 494500

Number of shares

repurchased for 1010000

cancellation

Number of shares

repurchased for holding

as treasury shares

B. Additional information for issuer who has a primary listing on the Exchange

1). Date of the resolution granting the repurchase mandate 12 June 2024

2). Total number of shares which the issuer is authorised to repurchase under the repurchase mandate 541496148

3). Number of shares repurchased on the Exchange or another stock exchange under the repurchase mandate (a) 4928000

4). As a % of number of issued shares (excluding treasury shares) as at the date of the resolution granting the repurchase mandate 0.09 %

(a) x 100 / number of issued shares (excluding treasury shares) as at the date of the resolution granting the repurchase mandate

5). Moratorium period for any issue of new shares or sale or transfer of treasury shares after the share repurchase(s) set out in Part A Up to 12 October 2024

(Note 2)

We hereby confirm that the repurchases made on the Exchange set out in Part A above were made in accordance with the Main Board Rules and that there have been no material changes to

the particulars contained in the Explanatory Statement dated 22 April 2024 which has been filed with the Exchange.Page 4 of 6 v 1.3.0FF305

Notes to Section II:

1. Please state whether the repurchase was made on the Exchange on another stock exchange (stating the name of the exchange) by private arrangement or by general offer.

2. Subject to the carve-out set out in Main Board Rule 10.06(3)(a)/ GEM Rule 13.12 an issuer may not (i) make a new issue of shares or a sale or transfer of any treasury shares; or (ii)

announce a proposed new issue of shares or a sale or transfer of any treasury shares for a period of 30 days after any purchase by it of shares whether on the Exchange or otherwise

without the prior approval of the Exchange.Page 5 of 6 v 1.3.0FF305

Section III must also be completed by a listed issuer where it has made a sale of treasury shares on the Exchange or any other stock exchange on which the issuer is listed which is discloseable

under Main Board Rule 10.06B / GEM Rule 13.14B.Report of on-market sale of treasury shares Not applicable

Submitted by: Shen Zehong

(Name)

Title: Company Secretary

(Director Secretary or other Duly Authorised Officer)

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