Itronics Updates Its Silver-Gold and Copper Mine Technology Application Development Plans

RENO, NV--(Marketwired - Aug 13, 2013) - Itronics Inc. (PINKSHEETS: ITRO) is today updating its technology developments and plans with a focus on potential applications for silver-gold mines that have a silver to gold ratio exceeding 4 to 1 in the ore. The Company believes that its technology may also prove to be applicable to certain copper-gold-silver deposits where the use of cyanide is not feasible, or not legally permissible, or where existing copper heap leaching technology would not recover associated gold and silver.

Itronics is reviewing potential uses for the de-silvered photoliquids in silver-gold ore processing where the de-silvered liquids would be used to neutralize cyanide tailings or to replace cyanide. Itronics strips the metals out of photoliquids from the photo industry or X-rays, and uses the remaining de-silvered liquids to make award winning, environmentally beneficial GOLD'n GRO fertilizers.

Itronics has assembled historical data from silver and gold mining reports as far back as the middle 1800s which indicate that the Company's technologies may be useable to improve operating results at existing silver-gold mines that use cyanidation recovery technology and for silver-gold mines that would use cyanidation recovery technology and are in the planning and development stage.

The potential benefits of the Company's technologies in silver-gold mines include: (1) improved silver and gold recovery, (2) reduced cyanide consumption and related costs, (3) environmentally attractive cyanide tailings remediation, and (4) potential for remediation and recycling of certain mine waste streams. Improvements in recovery and cost savings are equivalent to mine expansion for which the value can be calculated, providing a basis for measuring the value of the technologies at specific mine operations. Itronics is moving in this direction by seeking joint venture opportunities with existing and planned projects.

Several years ago Itronics conducted a series of laboratory tests that confirmed that the de-silvered photoliquids readily solubize copper. Because of these tests and from information in historical literature, the Company believes that its de-silvered photoliquids may be used to recover copper, gold, and silver from certain types of oxidized copper-gold-silver deposits and would be used instead of the sulfuric acid recovery process presently in use. The sulfuric acid process does not recover gold and silver so the new process would offer benefits similar to those which may be achieved in silver-gold mines. These are (1) improved recoveries, (2) potential for reduction in reagent consumption, (3) environmentally attractive tailings remediation, and (4) potential for remediation and recycling of certain mine waste streams.