所謂履約擔(dān)保，是指發(fā)包人在招標(biāo)文件中規(guī)定的要求承包人提交的保證履行合同義務(wù)的擔(dān)保。 　　
       履約擔(dān)保是工程發(fā)包人為防止承包人在合同執(zhí)行過程中違反合同規(guī)定或違約，并彌補給發(fā)包人造成的經(jīng)濟損失。履約擔(dān)保（Performance Guarantee）.

國際工程履約保函格式（銀行）

　　致：________

　　________公司，該公司執(zhí)行________國家法律，注冊辦公地址為________（以下簡稱\"NPOG\"）。

　　鑒于：

　?。?） 甲方（NPOG）和乙方（承包商）就________達成協(xié)議，并簽訂本\"合同\"，承包商同意完成合同規(guī)定的內(nèi)容。

　　（2） 合同明確規(guī)定了此條款，即由________銀行（以下簡稱\"擔(dān)保人\"）及時遞交給NPOG該保函。________銀行不可撤消和無條件地向NPOG擔(dān)保以下內(nèi)容：

　　1． 如果承包商在任一方面不能履行合同或違約，則根據(jù)NPOG第一次提出的不帶證據(jù)和條件的要求，擔(dān)保人在收到其要求后14天內(nèi)，不論承包商或任何第三方是否有異議或反對，擔(dān)保人都應(yīng)立即師父總額為________美元的擔(dān)保金。

　　2． 在征得或未征得擔(dān)保人同意的條件下，無論承包商和NPOG間簽訂何種協(xié)議，或者無論承包商在合同項下的義務(wù)發(fā)生何種變化，或者無論NPOG對于付款時間、履行情況以及其他事項作出何種讓步，或無論NPOG或承包商的名字組織機構(gòu)發(fā)生何種改變，都不能免除擔(dān)保人的擔(dān)保重任。

　　3． 本保函持續(xù)有效，有效力將相應(yīng)地保持到最終驗收通知單簽發(fā)日期，或合同終止后3個 ，二者以先為準(zhǔn)。

　　4． 擔(dān)保人同意，無論未償還金額能否通過法律行為或仲裁方式獲得，并且無論這筆償還金額是否由于承包商虧損、損壞、花費以及由于NPOG的某些原因造成的，擔(dān)保人同樣給予擔(dān)保。

　　本保函由擔(dān)保人于________年________月________日簽訂。

　　________銀行

　　簽字：________

　　名字：________

　　職務(wù)：________

　　銀行印章：

　　英文文本：

　　FERFORMANCE GUARANTEE FORMAT (BANK LETTERHAD)

　　TO: ____________(Company name),a company incorporated under the laws of and having its registered office at ____________(hereinafter called\" NPOG\")

　　WHEREAS

　　(1) by an agreement for the ____________(hereinafter referred to as the of the one part and NPOG of the other part, the CONTRACTOR agrees to perform the WORKS in accordance with the CONTRACT.

　　(2) one of the expressed conditions of the CONTRACT is the receipt by NPOG of this guarantee duly executed by (name of banker:) ____________(hereinafter called the \" GUARANTOR\") who hereby irrevocably and unconditionally guarantees and undertakes to NPOG as follows:

　　i) if the CONTRACTOR shall in any respect fail to execute the CONTRACT or commit any breach of this obligations thereunder the GUARANTOR shall pay to NPOG on first demand without proof or conditions the sum of US. Dollar ____________(USD: ____________) within 14 days after receipt of the said demand notwithstanding any contestation or protest by the CONTRACTOR or any other third party.

　　ii) The GUARANTOR shall not be discharged or released from this Guarantee by any agreement made between the CONTRACTOR and NPOG with or without the consent of the GUARANTOR or by any alteration in the obligations undertaken by the CONTRACTOR or by any forbearance whether as to payment time, performances or otherwise, or by any change in mane or constitution of NPOG or the CONTRACTOR.

　　iii) This guarantee is continuing security and accordingly shall remain in force until the issuance of the notice for final acceptance of three(3) months after the early termination of the CONTRACT, whichever is earlier.

　　iv) The GUARANTOR agree that the grauantee is given regardless whether or not the sum outstanding occasioned by the loss, damages costs ,expenses or otherwise incurred by NPOG is recoverable by legal action or arbitration.

　　IN WITNESS whereof this guarantee has been duly executed by GUARANTOR the____________ day of ____________199 ____________.

　　For and on behalf of ____________

　　(name of banker)

　　signature: ____________

　　name: ____________

　　designation:

　　banker\' s seal: ____________