Program

Conference Overview

Why Attend?

RETC Overview
Top Reasons to Attend

AUTHORS

Authors Overview
Abstract Submission
Authors FAQs

Meet Our Partners

Meet Our Sponsors

The Expo

Coming Soon…

Meet Our Partners

Meet Our Sponsors

Events

Coming Soon…

Meet Our Partners

Meet Our Sponsors

Hotel & Travel

Visit Dallas

Meet Our Partners

Meet Our Sponsors

About Us

About Us

Contact Us
Marketing Tools
Connect with Us
Media
Future Dates

Meet Our Partners

Meet Our Sponsors

Register

International Attendees

Letter of Invitation

Meet Our Partners

Meet Our Sponsors

Exhibitors

Exhibiting Benefits

Sponsors

Meet Our Sponsors

Global Access to RETC 2025

RETC welcomes conference attendees from around the world. If you plan to attend RETC from outside the United States, a U.S. visa may be required. For the best conference travel experience, begin your preparations early.

The following important information will help you successfully navigate the visa application process. Please refer to the U.S. State Department website for more details.

Plan Ahead

You can check the estimated wait time for U.S. visa appointments in your country at the local U.S. Embassy and Consulate’s website. Please contact your nearest consulate as soon as possible to request an interview date. Expect extended wait times exceeding 5 months.

Registration and Letter of Invitation

SME will send a Letter of Invitation upon request. Requests for Letters of Invitation must include your name, job title, company name, mailing address (PO boxes are not acceptable), city, state/province, country, zip/postal code, phone, fax number, date of birth and passport number; as well as the beginning and end dates of travel. Please provide the address, phone and fax number of your local U.S. embassy. All items must be submitted to receive a Letter of Invitation.

Note: Invitations are intended to help international delegates raise travel funds or obtain a visa. It is not a commitment from the conference or the organizers to provide any financial support.

Click the link below or send to:
SME Customer Service Dept.
12999 E. Adam Aircraft Circle
Englewood, CO 80112
USA

Obtain a Visa or ESTA

Determine if you need a visa or if you are eligible for the Visa Waiver Program (VWP).

Attendees needing a Visa
If you need a visa to attend RETC, be sure to apply for the right kind of visitor visa. This is typically a B1 visa to “Attend a scientific, educational, professional, or business convention or conference for a business visit.
You will need:

  • a current machine-readable passport
  • an in-person interview with the U.S. State Department consulate or embassy in the country where you live
  • and a letter of invitation from SME to the Rapid Excavation Tunneling Conference (RETC)

Attendees utilizing ESTA

You may travel to the U.S. for 90 days or less without obtaining a U.S. visa, if you’re a citizen of one of the 38 countries participating in the Visa Waiver Program. You must have valid Electronic System for Travel Authorization (ESTA) approval before travel. ESTA requires all international travelers to register in an online database and must complete an application on the ESTA website.

Interview Tips

Bring all supporting materials related to RETC to your interview, including your Letter of Invitation, hotel and plane reservation confirmations, conference agenda and any other documentation supporting your participation in the event. Tips: Be prepared to demonstrate strong ties to your country. Consular officers review your application and consider proof of business ownership or employment, social and family relationships and other evidence as proof that you will return to your country. Previous travel to the U.S. or other foreign countries demonstrate good faith.

Note: SME cannot intervene on your behalf with the Embassy or U.S. Consulate via fax, phone, surface mail, or email. The U.S. State Department provides information on traveling to the United States regarding passports, international travel, and visas.

For more information, please contact:

SME
12999 E. Adam Aircraft Circle
Englewood, CO 80112
E: cs@smenet.org
T: 303.948.4200

Sign Up & Stay Informed

Follow & Share

Interact with other conference attendees and get the latest conference updates. Use hashtag #RETC2025

12999 E. Adam Aircraft Cir. Englewood, CO 80112

The Society for Mining, Metallurgy & Exploration (SME) brings together the mining and mineral industry’s brightest and most dedicated professionals. Over 13,000 global members advance their careers with world-class technical resources, educational programs, networking opportunities, and professional development tools from SME. Our members are focused on sharing best practices on safety, environmental stewardship, and moving mining forward. SME. Inspiring mining professionals worldwide.

SME. Inspiring Mining Professionals Worldwide.

© 2024 SME. All right reserved.  |  Privacy Policy & Terms and Conditions