Tsql Query

 CompanyID  EventID     Date                                                                                                                                                         

101                E001      01-jan-12

101                E002       05-May-13

102                E003       10-nov-13

102                E004        05-apr-13

103                E005        20-jul-12

104                E006        02-may-13

Hi , I have a table as shown above, I would like to retrieve that if a company has attended two events I want to pull only the events that first joined. Ex: for company 101 E001 01-jan-12  for 102  E004 05-apr-13. How the query can be to achieve this?

thanks