Telvent Announces First Quarter 2010 Earnings Conference Call

May 6, 2010

May 6, 2010 - Telvent (NASDAQ: TLVT), the IT company for a sustainable and secure world, today announced that it will release its financial results for the first quarter ended March 31, 2010 before the opening of the market on Wednesday, May 26, 2010.

Manuel Sanchez, Chairman and CEO and Barbara Zubiria, Chief Accounting Officer and Head of Investor Relations, will conduct a conference call to discuss first quarter results, which will be simultaneously webcast, at 11:00 A.M. Eastern Time / 5:00 P.M. Madrid Time on Wednesday, May 26, 2010.

To access the conference call, participants in North America should dial (877) 263-0337 and international participants +1 (706) 758-3263. A live webcast of the conference call will be available at the Investor Relations page of Telvent’s corporate website at www.telvent.com. Please visit the website at least 15 minutes prior to the start of the call to register for the teleconference webcast and download any necessary audio software.

A replay of the call will be available approximately two hours after the conference call is completed. To access the replay, participants in North America should dial (800) 642-1687 and international participants should dial +1 (706) 645-9291. The passcode for the replay is 73227815.

About Telvent

Telvent (NASDAQ: TLVT) is a global IT solutions and business information services provider dedicated to helping improve efficiency, safety and security for the world’s leading companies. Telvent serves markets that are critical to the sustainability of the planet, including the energy, transportation, agricultural and environmental sectors. (www.telvent.com)

Investor Relations Contact

Bárbara Zubiría

Tel. +1 301 354 4680

Email: ir@telvent.com

Communications Department Contact

Patricia Malo de Molina

Tel. +34 954 93 71 11

Email: comunicacion@telvent.com