Kindly help me to check the sentence below : - Thanks in advance <img class='emoticon' style='Width:19px;Height:19px;' data-delaysrc='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/Emoticons/1.gif' src='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/Emoticons/1.gif' alt='Emotion: smile'/><br/><br/><b>"Being refund of 7% of GST due to the equipment is for export ( or exporting?) purpose<br/><br/></b>The purpose for this sentence is i need to issue the Credit Note to my customer.