SOURCE: Greenstone Holdings, Inc.

October 25, 2007 09:00 ET

Worldwide Market Research Report Lists Greenstone

NEW YORK, NY--(Marketwire - October 25, 2007) - Greenstone Holdings, Inc. (PINKSHEETS: GSHN) reports that Global Industry Analysts, Inc. of San Jose, California released a market research report related to the worldwide chemicals industry analyzing the Wood Preservative Chemicals market. The report profiles 71 companies including many major chemical companies worldwide such as Arch Chemicals Inc., Rohm and Haas Company, and others, including Greenstone Holdings, Inc.

Sal Miwa, Chief Executive Officer of the Company, stated that to be included with so many seasoned major producers in a market research report of this depth and breadth is a significant recognition of Greenstone's progress to date.

About Greenstone Holdings, Inc.

Greenstone Holdings (, through its operating subsidiaries, 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 building materials such as plywood, drywall, and lumber protection from the environment. It also offers added fire retardancy to the material it is applied to. GreenShield™ covers a wide range of applications such as wooden building material, fencing, railroad tie, and utility pole. The $25 billion water damage market is one example of several in which GreenShield™ could have applications.

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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