SOURCE: i-minerals inc.

October 20, 2005 12:47 ET

Excavation of Bulk Sample Completed

VANCOUVER, BC -- (MARKET WIRE) -- October 20, 2005 -- i-minerals inc. (TSX-V: IMA) has completed the excavation of a 40 ton bulk sample of potassium feldspar (K-spar) -- quartz material for pilot level processing to create a K-spar glaze product for sale into the ceramics industry. The sample was excavated from the WBL tailings deposit which hosts an Inferred Mineral Resource, as defined by NI 43-101, of 397,000 to 529,000 tons of material, which, based on a density of 130 pounds per cubic foot for wet, packed sand, contains 102,000 to 136,000 tons of feldspar and 195,000 to 260,000 tons of quartz assuming yields after processing of 25.7% for feldspar and 49.2% for quartz (see February 26, 2004 press release). The bulk sample was trucked to Lewiston, Idaho, where it will be packaged into 1-ton super sacks and then sent to the Mineral Research Laboratory at the North Carolina State University ("MRL") where it will be continuously processed at pilot plant scale levels. The resulting product will be sold into the pottery industry for use primarily in glaze applications. Pictures of the bulk sample being excavated are available on the i-minerals website at:

Recent metallurgical work at MRL has resulted in the creation of a high quality glaze product as evidenced by the high K2O - Na2O ratio, very low iron (Fe2O3) and high alumina (Al2O3).

Product                SiO2(%)  Al2O3(%) Fe2O3(%)  CaO(%)   Na2O(%)  K2O(%)
WBL feldspar product    66.49    17.94     0.04    0.23     1.45     12.04
Custer feldspar         68.5     17.0      0.15    0.30     3.00     10.0
Zemex G-200 feldspar    66.3     18.5      0.08    0.81     3.04     10.75
Test buttons fired by Wendt Pottery, a Lewiston, Idaho-based pottery, resulted in a high quality, very clear glaze. Management is highly confident an exceptional K-spar glaze product can be produced.

K-spar products made through the processing of the bulk sample production will be sold to pottery supply companies throughout the United States and international markets. Given the relatively small volume of material being processed, revenue generated through the sale of the K-spar product will be limited. However, it will serve to generate interest in i-minerals K-spar product in much the same manner as the recently announced plan to deliver soda feldspar products to major industrial companies to generate interest in that product.

"We have demonstrated the amenability of a standard flotation process to the production of high quality K-spar and soda-spar products from the Helmer-Bovill deposits," stated Roger Kauffman, President and CEO of i-minerals inc. "This metallurgical work clearly indicates both K-spar and soda-spar products can be produced through the same flotation process. Accordingly, we are seeking to generate interest in both our K-spar and soda-spar products as part of our ongoing feasibility work."

A. Lamar Long, CPG, is the Qualified Person ("QP") for the Helmer-Bovill project under NI 43-101. He oversees the quality control and quality assurance program and the construction of all samples for metallurgical analysis and reviews all analytical results prior to public release.

Further to the Company's press release of August 19, 2005, the Company has issued 3,049,500 shares at a deemed price of $0.30 and 50,000 warrants exercisable at $0.35 for a period of two years to extinguish outstanding debt totaling $914,865.

i-minerals inc.

per: "Roger Kauffman"

Roger Kauffman,
President & CEO
The TSX Venture Exchange has not reviewed and does not accept responsibility for the adequacy or accuracy of this release

This News Release includes certain "forward-looking statements" within the meaning of the United States Private Securities Litigation Reform Act of 1995. Without limitation, statements regarding potential mineralization and resources, exploration results, and future plans and objectives of the Company are forward-looking statements that involve various risks. Actual results could differ materially from those projected as a result of the following factors, among others: changes in the worldwide price of mineral market conditions, risks inherent in mineral exploration, risk associated with development, construction and mining operations, the uncertainty of future profitability and uncertainty of access to additional capital.

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