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Study Shows Minimal Leaching for ThermoPotash compared to a Loss of 26% of KCl

TORONTO, ONTARIO--(Marketwire - Dec. 16, 2010) - Amazon Mining Holding Plc (TSX VENTURE:AMZ - News; "Amazon" or the "Company") is pleased to report the results of the potassium leaching test, which established that ThermoPotash suffers minimal nutrient loss as a result of leaching, whereas KCl loses 26% under the same conditions.Nutrient leaching is a significant factor that decreases the efficiency of fertilizers for farmers. Potassium is a nutrient that is found in soil solution in ionic form, possessing high mobility and susceptibility to leaching, particularly in areas with high rainfall and sandy soils with low cation exchange capacity (CEC). This is particularly important in the Cerrado region of Brazil. The highly weathered ancient tropical soils of Cerrado are very well drained, not retaining water or nutrients, unlike the younger soils in the world's traditional farmlands located in temperate climates. To compound the problem, Brazil's Cerrado region receives substantially more rain than other growing areas.The experiment was carried-out at the University of Uberlandia under the direction of Prof. Gaspar Korndorfer in a greenhouse for 18 days, using soil columns (lysimeters) with two different soil compositions (sandy texture at 15% clay and a clayey soil at 45% clay) and two sources of potassium (potassium chloride (KCl) granules and ThermoPotash granules and powder) at a dose equivalent to 300 kg/ha under irrigation of 300 mm of water.The results presented in Table 1 show that the amount of potassium leached from the ThermoPotash was very low compared to that of potassium chloride (KCl) for both of the soil compositions tested. In each sample, 26% of the potassium chloride was leached, while only 0.3% of the ThermoPotash was leached. The superior behavior of ThermoPotash over KCl in the leaching test can be explained by its low solubility in water, which still effectively delivers nutrients to plants (see press release August 11, 2010).

Table 1: Amount of potassium in the soil solution (leached) collected in two
soil types (sandy and clay) for granular KCl and powdered and
granulated ThermoPotash applied to the surface at a dose equivalent
to 300 kg/ha K2O, after an irrigation of 300 mm, measured during a
period of 18 days.

Soil type Source of K - Doses of 300 kg/ha
KCl ThermoPotash ThermoPotash Control
(granular) (powdered) (granular) (without K)
--------------------- K leached, grams per column ---------
Sandy (15% loamy) 2.31 (26.2%) 0.28 (0.3%) 0.26 (0.0%) 0.26
Clay (40% loamy) 2.09 (26.0%) 0.08 (0.3%) 0.07 (0.1%) 0.06

Note: Figures in parentheses represent the percentage of K from the fertilizer applied that was lost through leaching and calculated using the following equation: % K lost by leaching = ((K leached from the source (g) - K leached from the control (g)) / total K applied in fertilizer (g)) x 100.About AmazonAmazon Mining is a mineral exploration and development company founded by Brazilians in 2005. The company is focused on the development of the Cerrado Verde project. Cerrado Verde is a source of a potash rich rock from which Amazon plans to produce a slow-release, non-chloride, multi-nutrient, fertilizer product. Amazon Mining is a UK public company with shares listed on the Toronto Stock Exchange since November 2007.On behalf of the Board of Directors of Amazon Mining Holding Plc, Jed Richardson, Vice President of Corporate Development.Cautionary Language and Forward Looking StatementsTHIS PRESS RELEASE CONTAINS CERTAIN "FORWARD LOOKING STATEMENTS", WHICH INCLUDE BUT IS NOT LIMITED TO, STATEMENTS WITH RESPECT TO THE FUTURE FINANCIAL OR OPERATING PERFORMANCE OF THE COMPANY, ITS SUBSIDIARIES AND ITS PROJECTS, STATEMENTS REGARDING USE OF PROCEEDS, EXPLORATION PROSPECTS, IDENTIFICATION OF MINERAL RESERVES, COSTS OF AND CAPITAL FOR EXPLORATION PROJECTS, EXPLORATION EXPENDITURES, TIMING OF FUTURE EXPLORATION AND PERMITTING, REQUIREMENTS FOR ADDITIONAL CAPITAL, GOVERNMENT REGULATIONS OF MINING OPERATIONS, ENVIRONMENTAL RISKS, RECLAMATION EXPENSES, TITLE DISPUTES OR CLAIMS, AND LIMITATIONS OF INSURANCE COVERAGE. FORWARD LOOKING STATEMENTS CAN GENERALLY BE IDENTIFIED BY THE USE OF WORDS SUCH AS "PLANS", "EXPECTS", OR "DOES NOT EXPECT" OR "IS EXPECTED", "ANTICIPATES" OR "DOES NOT ANTICIPATE", OR "BELIEVES", "INTENDS", "FORECASTS", "BUDGET", "SCHEDULED", "ESTIMATES" OR VARIATIONS OF SUCH WORDS OR PHRASES OR STATE THAT CERTAIN ACTIONS, EVENT, OR RESULTS "MAY", "COULD", "WOULD", "MIGHT", OR "WILL BE TAKEN", "OCCUR" OR "BE ACHIEVED". FORWARD LOOKING STATEMENTS INVOLVE KNOWN AND UNKNOWN RISKS, UNCERTAINTIES AND OTHER FACTORS WHICH MAY CAUSE THE ACTUAL RESULTS, PERFORMANCE OR ACHIEVEMENTS OF THE COMPANY TO BE MATERIALLY DIFFERENT FROM ANY FUTURE RESULTS, PERFORMANCE OR ACHIEVEMENTS EXPRESSED OR IMPLIED BY SAID STATEMENTS. THERE CAN BE NO ASSURANCES THAT FORWARD-LOOKING STATEMENTS WILL PROVE TO BE ACCURATE, AS ACTUAL RESULTS AND FUTURE EVENTS COULD DIFFER MATERIALLY FROM THOSE ANTICIPATED IN SAID STATEMENTS. ACCORDINGLY, READERS SHOULD NOT PLACE UNDUE RELIANCE ON FORWARD-LOOKING STATEMENTS.Readers are cautioned not to rely solely on the summary of such information contained in this release and are directed to the complete set of drill results posted on Amazon's website (www.amazonplc.com) and filed on SEDAR (www.sedar.com) and any future amendments to such. Readers are also directed to the cautionary notices and disclaimers contained herein.NEITHER TSX VENTURE EXCHANGE NOR ITS REGULATION SERVICES PROVIDER (AS THAT TERM IS DEFINED IN THE POLICIES OF THE TSX VENTURE EXCHANGE) ACCEPTS RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THIS RELEASE.