On April 1, 2007, BIOAGRA, LLC and AHD International, LLC of Atlanta, Georgia entered into an agreement whereby AHD International has agreed to purchase Agrastim® for resale to their customers. (BIOAGRA’s yeast Beta 1,3/1,6-D glucan is also marketed under the trade name Purestim® for human consumption markets.)

The agreement includes provisions for successive five-year renewals.  Provided certain minimum sales requirements are met, the agreement grants AHD International exclusive rights to distribute Agrastim® in all markets in Canada, Chile, Brazil, Japan, Vietnam, South Korea, Australia, New Zealand, Germany, and Denmark, as well as selected markets in South Africa, Mexico and the United States.

This agreement has the potential of resulting in sales in excess of 546,000 kilos of product in the first three years, and 312,000 kilos per year thereafter, provided minimum sales required to maintain exclusivity in all markets granted under the terms of this contract are met.

AHD International distributes primarily to companies that manufacture pharmaceuticals, neutraceuticals and dietary supplements for human consumption.  Further details of this agreement are contained in the 8K Report filed by Vyta Corp with the Securities and Exchange Commission on April 18, 2007.