| since 1997 | monster workshop director |
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| since 2002 | CO1 School of Visual Arts lecturer and curriculum planner |
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| 2007-2013 | The Hong Kong Polytechnic University part time lecturer |
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| 2008-2010 | Hong Kong Design Centre workshop lecturer |
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| 1997-2002 | Hong Kong Chingying Institute of Visual Arts lecturer |
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| 1993-1997 | Tommy Li Design Workshop designer |
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| 1989-1993 | Kinggraohic designer |
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| 1985-1989 | Charles Lam Production designer |
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