✔ 最佳答案
To whom it may concern
This is to certify that Mr. xxx (I.D. No. XXXXXX) was in service of this firm for X years since 19XX, his salary before resigning was HK$XXXXXper month plus one month extra as bonus per year.
Thank you for your attention. We remain
Hope this helps.
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XXX XXX XXXX<----老細名
XXX Co.
Date