英语翻译员工离职申明 本公司外贸部员工xx,英文名xxx,已于2010年8月31日已经离职.即日起,其所从事的业务活动均

书面的说法可以这样:
Notice
Mr.xxx, English name xxx, had left our company (Foreign Trade Dept) on Aug.31,2010. From that day on, we will NOT be liable to any business he proceeds, including which he transferred from our company to other parties while he was on duty. Further more, we reserve the rights to investigate and affix legal liability. You may contact Mr.xxx at xxx,xxx for related issues.
Sep.2,2010