Requests for Visa letters of invitation:

According to the US Travel.State.Gov website: a letter of invitation or Affidavit of Support is not needed to apply for a visitor visa”. Following this guidance dmg events will not be providing visa letters for Gastech 2019. We strongly urge you to read the essential information on the pdf guide below ‘US Visa Applications Helpful Tips’ which may help to make your visa interview process easier. 


There are stringent measures in place for international travellers to the United States.  Procedures will differ according to the country an applicant is travelling from.  Unfortunately, we have no influence over whether applications for visa appointments with local US embassies are rejected or subject to delays – please understand such circumstances are completely out of our control. 

Download the US Visa Applications Helpful Tips PDF: