RECYN PROCESS

PROVING THE TECHNOLOGY

The steps used in The RECYN™Process have been developed through extensive research and develop- ment programs over a 30 year period. A combination of laboratory testwork and continuous pilot trials has provided detailed knowledge of the resin's capabilities and performance over a wide range of ore types. Commercially, the technology is proving itself effective on the job: Currently, an integrated full scale opera- tion at the Mirah gold/silver project in Indonesia has demonstrated the commercial viability of the technology. A second larger Recyn plant is being constructed at the Mt. Muro project LABORATORY TESTWORK The following table shows typical results from testing a gold plant slurry containing soluble copper. Many ore types have been tested.

Table 1 - Typical Results from Batch Adsorption Tests

FEED SLURRY (PPM)

TREATED SLURRY (PPM)

SPECIES

Au Ag Cu Zn Fe As Cd Cr Co Mn Mo Ni

0.91 0.85 621 9.07 10.7 0.5 0.12 7.80 5.70 0.15 0.99 0.38 0.50 0.50 1060

<0.01 <0.01 0.75 0.1 0.3 <0.1 <0.01

<0.005 <0.004 <0.001

0.27 0.04 <0.01

Pb Sb CNTotal

<0.1 0.30