SOURCE: Greenstone Holdings, Inc.

February 20, 2008 08:00 ET

Greenstone Delivers First Order to ECORail

NEW YORK, NY--(Marketwire - February 20, 2008) - Greenstone Holdings, Inc. (PINKSHEETS: GSHN) announced today that it has received an instruction to deliver GreenShield™, the company's chemical sealer, to ECORail Products Inc. ("ECORail") in Walled Lake, Michigan ("ECORail" website www.ecorail.us). In 2007 ECORail had placed an initial order for 500 gallons, but the delivery of the product had been on hold due to ECORail's continuing product testing and market development for its environmentally safe products used by the railroad industry, ECOtie, ECOdeck and ECOwash.

"We are in the last stages of our product testing and have begun our market development. ECORail now holds several sample orders for our ECOTies, GreenShield-treated railroad ties from both railroad companies and industrial rail users. We are looking forward to a full industry announcement within the next few months," said B. Allen Brown, ECORail's President & CEO.

About Greenstone Holdings, Inc.

(www.egreenstone.com) Greenstone® is in the business of providing a variety of unique chemical technologies that are primarily used in the building and construction industry. The Company's first brand name product, GreenShield™, offers a solution for environmental protection for wood based building materials and others such as lumber, logs, plywood, drywall, railroad ties, fencing, and utility poles. It also offers added fire retardancy to the material it is applied to. The $25 billion water damage market is one example of many which GreenShield can find a niche in. Greenstone also exclusively distributes Green-Dri™, revolutionary biological dry kiln for drying wood, Permeate™, a very unique chemical sealer for metal, concrete, and other construction material, MagneLine®, a very strong polymer cement mortar to repair or reinforce metal and concrete structures such as bridges and highways, and Crystal-Guard™, an innovative chemical to make Asbestos safer and easier to dispose.

Forward-Looking Statements:

Safe Harbor statement under the Private Securities Litigation Reform Act of 1995: Except for historical information contained herein, the matters discussed in this press release are forward-looking statements that involve risks and uncertainties, including but not limited to economic, competitive, governmental and technological factors effecting the Company's operations, markets, products and prices and other factors discussed in the Company's various filings with the Securities and Exchange Commission.

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