| Company | Timeline | Status | |
| Hikoki Publications Limited Secretary • Publisher | 11 Mar 2004←2 Years 9 Months→19 Dec 2006 | Active | |
| Bethany School Director • Publisher | 4 Mar 2000←8 Years→24 Feb 2009 | Active | |
| Chevron Publishing Limited Director • Publisher | 17 May 1999←26 Years→Current | Active | |
| Chevron Publishing Limited Secretary • Publisher | 17 May 1999←9 Years→31 Dec 2008 | Active | |
