HELP , Wrote math IGCSE in pencil .

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CIE asks students to write in pen to avoid working fading during the process of shipping and collating the exam papers. Your exam paper will still be marked if you have written in pencil.

If the Exams Officer notices that a student has written in pencil, it is their job to photocopy the exam paper and send it along with the original to CIE. So if your Exams Officer has done their job correctly, you'll be fine. And even if they haven't, you should be OK anyway.

Source: I'm an IGCSE teacher and Exams Officer.
So if I wrote in an HB pencil would it still appear when the paper is scanned and sent for marking?