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To: LoneClone who wrote (20809)	6/4/2008 10:25:39 AM
From: LoneClone	Read Replies (1) \| Respond to of 194794

Oriental Minerals Drilling Confirms Depth and Extensions of the Sangdong Resource Wednesday June 4, 8:30 am ET ca.us.biz.yahoo.com VANCOUVER, BC--(MARKET WIRE)--Jun 4, 2008 -- Oriental Minerals Inc. (CDNX:OTL.V - News) is pleased to announce further results from an additional 8 holes from the drill program at the Sangdong Tungsten-Molybdenum project in South Korea. The Company continues to advance the technical studies to be incorporated into the Preliminary Economic Assessment (on-track for release before September 30, 2008) and subsequent feasibility studies. Hole SD-40 has 2 intersections reported of greater than 20 metres. Of significance is hole SD-42 which is open at depth and confirms the down dip extension of both tungsten and molybdenum mineralization at Sangdong, with an intersection of 72m @ 0.14% WO3 and 0.07% MoS2 Hole SD-43 has noteworthy combined intersections of tungsten and molybdenum of 109m @ 0.16% WO3 and 0.06% MoS2 and 66m @ 0.21% WO3 and 0.11% MoS2. The many additional molybdenum intersections to the end of hole SD-43 at 700 metres have contributed to greater definition of the deep molybdenum mineralization. Hole SD-56 is encouraging and shows the layered zones of mineralization extend the known deposit to the northeast. Holes SD-57 to 59 have given more detail of the limits of mineralization on the southeast boundary, assisting the preliminary mine planning currently underway. Hole SD-60 is located where the skarn is near surface and has several intervals greater than 0.1% WO3. Technical studies underway include environmental baseline work, with 3 of 4 seasons already completed and metallurgical studies of a 600 kilogram sample are 60% complete. Pit optimization studies are being updated with these results, as is the Wardrop Engineering resource estimate (announced March 17, 2008). The details of the drill intersections, using a 0.1 WO3% Equivalent cut-off, are tabulated below: ------------------------------------------------------------------- Hole From(m) To(m) Interval WO3(%) MoS2 Rock Type(Formation) (m) (%) ------------------------------------------------------------------- ------------------------------------------------------------------- SD-40 29 50 21 0.22 0.05 Skarn(Myobong Slate) ------------------------------------------------------------------- SD-40 55 84 29 0.27 0.05 Skarn(Myobong Slate) ------------------------------------------------------------------- ------------------------------------------------------------------- SD-42 196 200 4 0.10 0.01 Limestone/Breccia ------------------------------------------------------------------- SD-42 246 318 72 0.14 0.07 Limestone/Breccia /Skarn, EOH ------------------------------------------------------------------- ------------------------------------------------------------------- SD-43 30 139 109 0.16 0.06 Breccia/Skarn (Myobong Slate) ------------------------------------------------------------------- SD-43 152 218 66 0.21 0.11 Skarn(Myobong Slate) ------------------------------------------------------------------- SD-43 225 244 19 0.03 0.06 Skarn/Quartzite ------------------------------------------------------------------- SD-43 251 270 19 0.00 0.08 Quartzite(Jangsan) -------------------------------------------------------------------- SD-43 281 295 14 0.01 0.16 Quartzite(Jangsan) -------------------------------------------------------------------- SD-43 349 357 8 0.00 0.07 Quartzite(Jangsan) -------------------------------------------------------------------- SD-43 445 456 11 0.01 0.07 Quartzite(Jangsan) -------------------------------------------------------------------- SD-43 497 514 17 0.00 0.06 Quartzite(Jangsan) -------------------------------------------------------------------- SD-43 530 542 12 0.01 0.13 Quartzite(Jangsan) -------------------------------------------------------------------- SD-43 564 576 12 0.00 0.15 Quartzite(Jangsan) -------------------------------------------------------------------- SD-43 610 638 28 0.01 0.12 Quartzite(Jangsan) -------------------------------------------------------------------- SD-43 648 659 11 0.01 0.08 Quartzite(Jangsan) -------------------------------------------------------------------- SD-43 686 691 5 0.03 0.03 Quartzite(Jangsan) -------------------------------------------------------------------- -------------------------------------------------------------------- SD-56 111 116 5 0.10 0.00 Skarn(Myobong Slate) -------------------------------------------------------------------- SD-56 131 147 16 0.17 0.01 Skarn(Myobong Slate) -------------------------------------------------------------------- SD-56 156 163 7 0.06 0.02 Skarn(Myobong Slate) -------------------------------------------------------------------- SD-56 184 190 6 0.14 0.00 Skarn(Myobong Slate) -------------------------------------------------------------------- SD-56 196 202 6 0.13 0.00 Skarn(Myobong Slate) -------------------------------------------------------------------- SD-56 217 224 7 0.05 0.03 Skarn(Myobong Slate) -------------------------------------------------------------------- SD-56 235 239 4 0.22 0.01 Skarn(Myobong Slate) -------------------------------------------------------------------- SD-56 261 267 6 0.23 0.00 Skarn(Myobong Slate) -------------------------------------------------------------------- -------------------------------------------------------------------- SD-57 No significant intersections 0.00 0.00 -------------------------------------------------------------------- -------------------------------------------------------------------- SD-58 169 171 2 0.12 0.00 Skarn(Myobong Slate) -------------------------------------------------------------------- -------------------------------------------------------------------- SD-59 85 97 12 0.16 0.01 Skarn(Myobong Slate) -------------------------------------------------------------------- SD-59 169 178 9 0.12 0.00 Skarn(Myobong Slate) -------------------------------------------------------------------- -------------------------------------------------------------------- SD-60 0 4 4 0.13 0.00 Qverburden/Skarn -------------------------------------------------------------------- SD-60 37 55 18 0.13 0.03 Skarn(Myobong Slate) -------------------------------------------------------------------- SD-60 71 82 11 0.08 0.03 Skarn(Myobong Slate) -------------------------------------------------------------------- SD-60 93 95 2 0.62 0.01 Skarn(Myobong Slate) -------------------------------------------------------------------- SD-60 118 128 10 0.17 0.01 Skarn(Myobong Slate) -------------------------------------------------------------------- SD-60 162 170 8 0.15 0.00 Skarn(Myobong Slate) -------------------------------------------------------------------- SD-60 180 182 2 0.01 0.08 Quartzite(Jangsan) -------------------------------------------------------------------- Current Drill Status: As at 2nd June 2008, 79 holes have been drilled for a total of over 20,000m. Currently, 4 diamond rigs are operational. The status of drilling is tabulated below. ------------------------------------------------------------------------- Hole UTME UTMN RL Azimuth True Inclination Depth Drill Date ID (m) (m) (m) () () (m) Type Completed ------------------------------------------------------------------------- SD-63 485142 4111806 870 135 -70 500 Diamond 30-Apr ------------------------------------------------------------------------- SD-66 485473 4111384 683 315 -70 181 Diamond 25-Apr ------------------------------------------------------------------------- SD-67 485296 4111218 828 135 -70 161 Diamond 9-Apr ------------------------------------------------------------------------- SD-69 484610 4111364 928 315 -70 221 Diamond 11-Apr ------------------------------------------------------------------------- SD-73 485160 4111479 787 315 -70 490 Diamond 8-May ------------------------------------------------------------------------- SD-74 484744 4111383 850 135 -70 135 RC 3-Apr ------------------------------------------------------------------------- SD-75 484774 4111383 850 315 -70 90 RC 5-Apr ------------------------------------------------------------------------- SD-76 485380 4111661 735 315 -70 455 Diamond 12-May ------------------------------------------------------------------------- SD-77 484611 4111364 928 135 -70 c134 Diamond In progress ------------------------------------------------------------------------- SD-78 485142 4111806 870 205 -70 201 Diamond 17-May ------------------------------------------------------------------------- SD-79 485160 4111479 787 255 -55 109 Diamond 19-May ------------------------------------------------------------------------- SD-80 485095 4111255 847 135 -70 c168 Diamond In progress ------------------------------------------------------------------------- SD-81 484871 4111363 836 315 -70 c118 Diamond In progress ------------------------------------------------------------------------- SD-82 485160 4111479 787 240 -70 85 Diamond 29-May ------------------------------------------------------------------------- SD-83 485160 4111479 787 135 -70 c8 Diamond In progress ------------------------------------------------------------------------- Analytical results are awaited from the completed holes. Updated Drill Program Map To view an updated Drill Program Map, please go to www.orientalminerals.com. QA/QC Samples are 1-metre split PQ, HQ or NQ core or 1-metre split RC. The samples were prepared at the on-site preparation facility and pulps were submitted to ALS Chemex laboratory in Brisbane, Australia and analyzed by Ore Grade Method XRF-ME05, Au-AA21, ME-ICP41s and Ag-OG46. Quality Control: Blanks, Standards and Coarse and Pulp Duplicates samples were routinely inserted with the drill samples at random intervals. Blank samples were clean, indicating no cross contamination in the samples. All results confirm analysis of Standards and Coarse Duplicates are within the normal bounds of acceptable error of +/- 5%. Pulp Duplicate samples processed by another independent laboratory are also within the normal bounds of acceptable error of +/- 5%. QUALIFIED PERSON This Press Release has been prepared by Oriental Minerals Senior Geologist Heyward Bates. Heyward Bates is a member of the AusIMM with relevant experience, and is the Qualified Person for the purposes of this release. On behalf of the Board of Directors, Ian Fodie Lead Director (604) 681-5755 Statements in this news release, other than purely historical information, including statements relating to the Company's future plans and objectives or expected results, constitute Forward-looking statements. Such statements are based on numerous assumptions and are subject to all the risks and uncertainties inherent in the Company's business, including risks related to mineral exploration and development. Consequently, actual results may vary materially from those described in the forward-looking statements. The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this release. Distributed by Filing Services Canada and retransmitted by Marketwire Contact: For more information, contact: Spiro Kletas (604) 681-5755 orientalminerals.com Source: Oriental Minerals Inc.