Dia Bras: First Sale of Concentrates from Bolivar Mine.MONTREAL -- Dia Bras Exploration (TSX TSX Toronto Stock Exchange (TSE before April, 2002) TSX Transfer from Stack Pointer to Index TSX True Space Extension VENTURE:DIB (1) (Directory Information Base) Also called "white pages," a database of names in an X.500 system. (2) (Device Independent B ) is pleased to announce the first sale of concentrates (Cu-Zn) and the preliminary results from its pilot mining and development at the Bolivar Mine. The company's objective is to mill 9,000 metric tons by September of high grade material at 4% Cu and 20% Zn. These high grade zones around holes 85 and 87 which indicated grades up to 6% Cu and 28% Zn will be reached within 60 days. Operating Results Since the start-up Start-up The earliest stage of a new business venture. in January, the mine has produced 6,900 metric tons. Current production is from only two faces on level 6.Level 1 will be on stream at the end of April and two more working faces are available. The objective is to mine from five economic faces by July. Mill start-up is proceeding as planned. From mid-February to March 31, the mill has processed 3,500 metric tons of ore at an average head grade of 2.69% Cu and 7.11% Zn. All ore shipped to the mill was development ore. At the end of March, the mill had been upgraded to 200 tpd. The mill has produced 332 DMT See DSL. of Zn concentrate and 234 DMT of Cu concentrate from the Bolivar ore. Dia Bras is pleased to announce that it is proceeding today to the sale of 278 DMT of zinc concentrate Zinc concentrate is a highly hazardous product used in the production of zinc metal and zinc alloys, which is the result of a flotation process after the zinc ore has been mined and milled. (56.5%) and 185 DMT of copper concentrate (28%) for an amount of US$240,000 to Marc Rich Marc Rich (born Marc David Reich on December 18, 1934) is an international commodities trader. He fled the United States in 1983 to live in Switzerland while being prosecuted on charges of tax evasion and illegally making oil deals with Iran during the hostage crisis. + Co Investment. The expansion of the mill to 300 tpd will begin in May and should be completed by September. The company expects to mill 3,500 tons in April at an average grade of 3% Cu and 9% Zn and 5, 000 metric tons at grades improving to 4% Cu and 20% Zn in the months of May, June, July and August. Roscoe Postel and Associates from Toronto are gathering the information necessary for a 43-101 report by May. Their representative is now in Chihuahua Chihuahua, state, Mexico Chihuahua (chēwä`wä), state (1990 pop. 2,441,873), 94,831 sq mi (245,612 sq km), N Mexico, on the border of N.Mex. and Texas. The city of Chihuahua is the capital. to assess mine and mill. Exploration and Mine Development The last drill program tested the New Bolivar South Zone where Cu, Zn, Ag, Au mineralization Mineralization The process by which the body uses minerals to build bone structure. Mentioned in: Rickets mineralization, n the bioprecipitation of an inorganic substance. in skarn skarn In geology, a metamorphic zone developed in the contact area around igneous rock intrusions when carbonate sedimentary rocks are invaded by and replaced with chemical elements that originate from the igneous rock mass nearby. was discovered (See results in table below). The current drilling program is targeted in the mine area to increase the size of the higher grade resources readily available by underground workings. Exploration will also continue in the surroundings to evaluate the Lilly, Cascada and Rosario prospects.
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Hole From To Thickness Au Ag Cu Zn
(m) (m) (m) g/t g/t % %
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DIA-102-05 150.60 151.60 1.00 0.092 18.70 0.51 7.88
166.65 169.40 2.80 0.825 106.85 1.52 17.77
177.45 178.90 1.50 0.022 9.60 0.56 21.00
178.9 179.90 1.00 0.011 5.90 0.07 7.33
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DIA-103-05 137.50 139.50 2.00 0.200 14.80 0.70 5.43
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DIA-107-05 82.00 83.00 1.00 0.110 44.70 4.24 19.70
125.00 126.00 1.00 0.466 44.80 2.01 12.40
127.00 128.00 1.00 0.143 20.90 1.04 10.60
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DIA-111-05 159.00 169.00 10.00 0.62 33.03 1.57 0.22
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DIA-112-05 241.00 249.00 8.00 0.965 12.92 1.86 0.18
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DIA-114-05 66.00 67.00 1.00 0.131 74.90 0.27 1.85
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DIA-115-05 58.00 59.00 1.00 1.11 3.60 0.00 0.01
61.00 72.00 11.00 1.32 14.55 0.00 0.10
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About Dia Bras Dia Bras is a Canadian Canadian (kənā`dēən), river, 906 mi (1,458 km) long, rising in NE New Mexico. and flowing E across N Texas and central Oklahoma into the Arkansas River in E Oklahoma. mining exploration company focused on precious and base metals in the State of Chihuahua, Mexico. The Company continues exploration and the active development of its two key projects - Bolivar and Promontorio - located in the Sierra Madre Sierra Madre, city, United States Sierra Madre (sēĕr`ə mä`drā), residential city (1990 pop. 10,762), Los Angeles co., S Calif., at the foot of Mt. Wilson; inc. 1907. There is some light manufacturing. precious metal belt. The Company is traded on TSX Venture Exchange TSX Venture Exchange Originally called the Canadian Venture Exchange (CDNX), this was a result of the merger of the Vancouver and Alberta stock exchanges. The goal of TSX Venture Exchange is to provide venture companies with effective access to capital while protecting investors. , under the symbol "DIB". For further information on the Company please visit our website: www.diabras.com The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this press release. Dia Bras Exploration Inc. (TSX VENTURE:DIB) |
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