SOURCE: Greenstone Holdings, Inc.

April 23, 2008 08:23 ET

Greenstone Introduces MagneLine®-PP Method, an Innovative Method to Reinforce Bridges

NEW YORK, NY--(Marketwire - April 23, 2008) - Greenstone Holdings, Inc. (PINKSHEETS: GSHN) announced today that the Company has introduced for the first time in the U.S. MagneLine-PP, a new method to reinforce bridge piers. Due to its adhesive strength and its anti-carbonization performance, it only takes 1/5th of the standard thickness required to reinforce concrete bridge piers, allowing additional room for river current and vessel traffic. MagneLine-PP also reduces the erosive effect of high speed current and other elements. MagneLine-PP has been used on over 400 bridges in Japan. MagneLine-PP is a GREEN product certified SAFE as drinking water container material in Japan.

"Of almost 600,000 bridges in this Country, about 30% are deemed deficient or functionally obsolete according to the American Society of Civil Engineers. Many of these unsafe bridges are perfect candidates for our MangeLine-PP," said Sal Miwa, CEO of the Greenstone.

See the examples at http://www.egreenstone.com/documents/MagleLinePPexamples.pdf

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 "green" solution to protect wood-based building materials such as lumber, logs, plywood, drywall, railroad ties, fencing, and utility poles from destructive environmental elements. It also offers added fire retardancy to the material it is applied to. The $25 billion water damage market is just one example of the perfect niche for GreenShield. Greenstone also exclusively distributes Green-Dri™, a revolutionary biological dry kiln for drying wood, Permeate™, a very unique anti-corrosion sealer paint for metal, concrete, and other construction materials, MagneLine®, a very strong polymer cement mortar used to reinforce and/or repair metal and concrete structures such as bridges and highways, Crystal-Guard™, an innovative chemical to make asbestos harmless and recyclable, and Anz Ceramic Coating™, a revolutionary coating to reflect sun's heat ray.

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.

Contact Information

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