What does PAL stand for?

The results of pressure acid leach testing by three major companies are now expected in October 2005.

The other involves the treatment of a bulk concentrate by pressure acid leach.

The feasibility study has determined a project development strategy that builds a High Pressure Acid Leach (HPAL) plant on site to produce a mixed nickel-cobalt hydroxide concentrate for shipping to third party refineries.

TORONTO -- WDA recently commissioned SNC Lavalin, a highly regarded, world recognised, engineering and construction group with particular metallurgical process expertise, to review the metallurgical testwork that the Company has recently completed at Lakefield Oretest Pty Ltd on the combined Pressure Acid Leach, Atmospheric Leach and Saprolite Neutralisation process.

Process Developments Confirm Potential to Reduce Capital Cost The results from metallurgical testwork to further develop the integrated Pressure Acid Leach (PAL), Atmospheric Leach (ATL) and Saprolite Neutralization (SN) process flowsheet have been incorporated into a scoping study.

The aim of this testwork is to further develop a combined Pressure Acid Leach (PAL), Atmospheric Leach (ATL) and Saprolite Neutralization (SN) process flowsheet.

A recently completed scoping study by the Company indicates that an integrated plant using the pressure acid leach process in conjunction with atmospheric leaching and saprolite neutralization can produce 40,000 tonnes of nickel and 3,000 tonnes of cobalt per annum in a sulphide intermediate product.

Business Editors TORONTO--(BUSINESS WIRE)--May 16, 2002 Revised Pre-Feasibility Study Weda Bay Minerals Inc (TSX:WDA) has completed a revised Pre-Feasibility Study (PFS) for a nickel/cobalt pressure acid leach project incorporating saprolite neutralisation based on its extensive laterite deposits on Halmahera Island, Indonesia.