Dear Sir or Madam whom may be concerned,

Merry Christmas and Happy New Year!!!

Thank you very much for the year 2017 you and me have been cooperating closely on the business,

wishing the coming year 2018 we do more win to win.
Please let's keep in touch, if you are interested in our goods. Your ealier reply would be very highly appreciated.
Best regards!

JE Wireless Team
Dec., 2017