A 19% Value-Added Tax is imposed on your participation fee and other exhibitor services which you order from any German service providers.  This tax amount is clearly indicated on each.  You may consult a VAT professional how to claim this tax. 

Below is a VAT company which you may consult:

VATit (Hong Kong) Ltd.
Contact person: Mr. Andy Wai, Senior Business Development Executive
Tel: (852) 2838 3810
Fax: (852) 2838 3910
Email: andy.wai@vatit.com.hk
Address: Rm 801, 8/F Wayson Commercial Building, 28 Connaught Road West, Sheung Wan, Hong Kong

The SME Export Marketing Fund (EMF) [中小企業市場推廣基金] aims to help small and medium enterprises to expand their business through participation in export promotion activities.  To know more about eligibility and application procedures, please visit http://www.smefund.tid.gov.hk/eng/eng_main.html for English and http://www.smefund.tid.gov.hk/chi/chi_main.html for Chinese.