Then the following should do it for you. Please understand that I've not actually tested the code. Please see the first link in my signature line below for why and how to get really good answers to your posts in the future.
SELECT ComCod = MIN(COMCOD)
, PartyCode = MIN(PartyCode)
, PartyName
FROM dbo.YourTable
GROUP BY PartyName
ORDER BY PartyName
;
--Jeff Moden
Change is inevitable... Change for the better is not.