Date: Jun 12th, (Friday) 9:00 - 17:00
Place: Teachers' Training Center on the Second floor.
People: 16 native speakers and Korean English teachers are supposed to be at the Teachers' Training Center.
Title: 2009 Native speakers Cooperative Calss Intensive Training
(Are the expressions above correct? Would you check the expressions?)
Personally I would use June rather than Jun.
I tend to put the date and time on different lines
so
Date: Friday, June 12th 2009.
Time: 9:00 - 17:00
If you are in the UK then it is 'Centre' otherwise 'Center' is fine.
I would use either 'Second Floor' or 'second floor'.
I am not sure of the need for 'are supposed to be at the Teachers' Training Center.'
In the title it should be 'Class'
The lower case first letter of 'speakers' looks odd so I would put this as 'Speakers' as well.
Hope this is useful.
The expressions you provided are mostly correct. However, there are a few small errors and suggestions for improvement. Here is a revised version of the information:
Date: June 12th (Friday), from 9:00 to 17:00.
Location: Second floor of the Teachers' Training Center.
Attendees: There will be a total of 16 native English speakers and Korean English teachers participating in the Cooperative Class Intensive Training.
Title: 2009 Native Speakers Cooperative Class Intensive Training.
These revisions make the information clearer and more accurate.