ENVIRONMENTAL SERVICES LTD.

P.O. Box 1075

Mandan, ND 58554

701-663-4069

Fax: 701-663-5225

Contact: Perrie Schafer, Tyler Schafer, Karlis Heiser, Doug Buckman, Keithe Hofeld

TECHAIR SYSTEMS, INC.

461 South Kingston Circle

Aurora, CO 80012-2205

303-366-1919

Toll Free: 866-247-1919

Fax: 303-366-2095

Contact: Jim Taylor