Itronics Updates Progress on GOLD'n GRO Guardian Deer Repellent Fertilizer and Silver/Gold Recovery Technology Developments

    RENO, Nev., Dec. 11 /PRNewswire-FirstCall/ -- Itronics Inc. (OTC
 Bulletin Board: ITRO; Frankfurt and Berlin Stock Exchanges: ITG) today
 reported significant progress by its subsidiary, Itronics Metallurgical,
 Inc., on product and process developments that will both improve the
 Company's bottom line and its reputation for environmental excellence.
 Other recent highlights include:
 
 

     -- The GOLD'n GRO Guardian deer repellent fertilizer application has been
        received by the U.S. Environmental Protection Agency, and has been
        assigned a review classification number that provides for a 180-day
        registration review period. This puts the registration on a schedule to
        be completed in May-June, 2008, after which sales can proceed.
 
     -- Revisions to the photochemical blending procedures that will increase
        throughput capacity for GOLD'n GRO manufacturing by 250 percent have
        been successfully implemented.
 
     -- Negotiations are continuing with potential new suppliers of used
        photochemicals, with startup on one new contract completed in November,
        and another tentatively scheduled to begin in February 2008.
 
     -- Work is continuing on equipment design and specification for the
        expansion of the solids handling capacity in the silver refinery. Part
        of the equipment has been received and engineering for equipment
        installation is now proceeding.
 
     Two new leaching processes that are under development, Itromet FeLix
 Process and Itromet SuLix Process, were described by Itronics in a news
 release dated November 6, 2007. Development of operating parameters for the
 two processes has been completed and bench tests to demonstrate the
 operating sequence for both processes, on a "start to finish" basis, are
 now underway. A pilot-scale leach circuit that uses both processes in
 sequence has been specified and sizing of process equipment and
 identification of specific items of equipment to develop an installation
 budget is underway. Layout design and engineering for the pilot-scale
 operating leach circuit is expected to begin early in the first quarter
 2008.
 
     A series of small pilot scale leach tests using the Itromet SuLix
 Process has been completed with essentially complete sulfur recovery from
 material containing 84 percent sulfur and 3 percent silver. More than 95
 percent of the test lot of material was put into liquid solution leaving
 the silver in the solid residue for recovery by refining. This series of
 tests demonstrates that large improvements in silver refining capacity will
 be achieved once this process is fully operational due to the large bulk
 reduction of the silver-bearing solids.
 
     The Itromet FeLix and SuLix processes are demonstrating the ability to
 separate nutrient metals and minerals (iron, zinc, and sulfur) from silver
 and gold bearing solids. The nutrient metals and minerals are put into
 liquid solution for use in the GOLD'n GRO liquid fertilizers, and the
 silver and gold bearing solids are sent to the refinery for recovery of the
 precious metals from non-nutrient impurities.
 
     The Itromet FeLix and Itromet SuLix technologies improve resource use
 because nutrient metals that are now being wasted will be recovered for
 beneficial use once the complete leaching system is operational.
 
     "Itronics' advancement and completion of new GOLD'n GRO products and
 vertically integrated silver/gold recovery technology is a result of years
 of research and development that has made the photochemical recycling
 technology and the GOLD'n GRO brand of environmentally compatible
 fertilizer a success," said Dr. John Whitney, Itronics President. "The
 GOLD'n GRO Guardian deer repellent fertilizer is made possible by the
 nutrient delivery technology embodied in the GOLD'n GRO fertilizers. We are
 truly excited by the way these developments are progressing and the
 potential for sales expansion that they represent."
 
     About Itronics
 
     Itronics, through its subsidiary, Itronics Metallurgical, Inc., is the
 only company in the world with a fully permitted "Beneficial Use
 Photochemical, Silver, and Water Recycling" plant located in the United
 States which can convert used photoliquids into pure silver and liquid
 fertilizers. At the Company's Reno, Nevada factory more than 99 percent of
 the silver and virtually all the other toxic heavy metals are extracted
 from used photoliquids. The purified liquids are converted into
 environmentally beneficial, chelated, micronutrient and multinutrient
 liquid fertilizers sold under the GOLD'n GRO trademark. The silver is
 refined and sold as bullion and 5 troy ounce, 0.999 pure, Silver Nevada
 Miner numismatic bars. The environmentally friendly liquid fertilizers can
 be used for lawns and houseplants, and are available, along with GOLD'n GRO
 liquid fertilizer injectors, at the Company's "e-store" catalog at
 http://goldngro.com. The popular Silver Nevada Miner bars are available at
 the Company's "e-store" catalog at http://www.itromet.com.
 
     Headquartered in Reno, Nevada, Itronics Inc. is a "Creative
 Environmental Technology" company and a world leader in photochemical
 recycling. The Company also provides environmentally compatible mining
 technology development, project planning, and technical services to the
 gold mining industry and operates the popular InsideMetals.com web site:
 http://www.insidemetals.com provides a value-added WORLD VIEW of Gold
 Producer Stocks, Mineral Producer Stocks, Junior Gold Stocks, and Junior
 Mineral Stocks. Itronics has received numerous domestic and international
 awards that recognize its ability to successfully create and implement new
 environmentally compatible recycling and fertilizer technologies.
 
 

      Contact:  Paul Knopick
                888-795-6336
 
                  VISIT OUR WEB SITE: http://www.itronics.com
     ("Safe Harbor" Statement under the Private Securities Litigation Reform
 Act of 1995: This press release contains or may contain forward-looking
 statements such as statements regarding the Company's growth and
 profitability, growth strategy, liquidity and access to public markets,
 operating expense reduction, and trends in the industry in which the
 Company operates. The forward-looking statements contained in this press
 release are also subject to other risks and uncertainties, including those
 more fully described in the Company's filings with the Securities and
 Exchange Commission. The Company assumes no obligation to update these
 forward-looking statements to reflect actual results, changes in risks,
 uncertainties or assumptions underlying or affecting such statements, or
 for prospective events that may have a retroactive effect.)
 
 
 

SOURCE Itronics Inc.