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Royal Oak's Kemess Mine Achieves Design Criteria for Processing Hypogene Ore.

KIRKLAND, Wash.--(BUSINESS WIRE)--Aug. 18, 1998--Royal Oak Mines (TSE See Tokyo Stock Exchange.


1. See Tokyo Stock Exchange (TSE).

2. See Toronto Stock Exchange (TSE).

See: American Stock Exchange
:RYO) Royal Oak Mines The Royal Oak Mines Incorporated was a gold mining company, founded in 1990 by Peggy Witte in Kirkland, Washington. They held numerous gold and base metal properties in Canada, including the Giant Mine in the Northwest Territories, Pamour Mine in Ontario, Hope Brook Mine in  Inc. (TSE and AMEX: RYO) announced today that its new Kemess gold-copper mine has met all design criteria for processing hypogene hy·po·gene  
Formed or situated below the earth's surface. Used of rocks.
 ore since the commencement of production on May 19, 1998.

During the period to date, the mill has processed approximately 2.5 million tons of ore at an estimated head grade of 0.211 percent copper and 0.016 ounces of gold per ton. Milling rates of between 50,000 and 60,000 tons per day are being consistently achieved. After making modifications to the flotation circuit, copper and gold recoveries of 80 percent and 75 percent, respectively, are now being achieved. These recoveries compare with the estimated recoveries for 1998 of 78 percent copper and 71 percent gold. The concentrator has produced approximately 11,500 tons of concentrate containing between 25 percent and 26 percent copper and between 1.3 and 1.7 ounces of gold per ton during the period.

The Company plans to commence processing softer supergene su·per·gene  
A group of closely linked genes occupying a large chromosomal segment and frequently functioning as a genetic unit.
 ore at the end of this week after completing the current campaign on hypogene ore. The supergene commissioning period is expected to be completed by the end of September when commercial production is expected to commence.

The Company knows of no impending im·pend  
intr.v. im·pend·ed, im·pend·ing, im·pends
1. To be about to occur: Her retirement is impending.

 news or other market factors to explain the weakness in the price of its common shares.

CONTACT: Royal Oak Mines Inc.

Mr. J. Graham Eacott, 425/822-8992

425/822-3552 (FAX)


David Williamson Associates

Mr. David Williamson, 011/44-171-628-3989

011/44-171-920-0563 (FAX)
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Publication:Business Wire
Date:Aug 18, 1998
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