Hi all,
Kindly check my draft here. Many thanks in advance.

Student or Learner
Hello everyone,
Please check my draft memo below. I would be very glad hearing from any one of you as soon as possible. Many thanks then.
==============================================
DATE : JANUARY 30, 2010
TO : ALL DEPARTMENT HEADS
FROM : GENERAL MANAGER
SUBJECT : INTRODUCTION OF QUALITY MANAGEMENT SYSTEM (QMS)
You are all hereby directed to attend the meeting on Wednesday, 6th February 2010, 1 PM at the Office Conference Room.
Main agendum would be the introduction of the Quality Management System (QMS) which had been initially introduced last 19th January 2010. A series of orientation on this system to all departments will be scheduled soon.
Your full attendance is a must.
For your information and compliance.
Engr. Abcde Fghijklm
General Manager
Hi all,
Kindly check my draft here. Many thanks in advance.
The main item on the agenda will be...
Attendance is mandatory.
(Is this how people generally talk to each other? Here it would be more like "There is a mandatory meeting at... We will discuss... It's essential that you be there." We would not say "You are hereby directed.")
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.