We, as a drilling equipment maker, have devoted ourselves to the. "Where a hole is dug, there is our job. AFRICA. Kyrgyz

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1 NLC Company Limited For Better Drilling Business LONG TIME ACCUMULATED TECHNOLOGY FROM JAPAN TO THE WORLD

2 NLC Co., LTD. We, as a drilling equipment maker, have devoted ourselves to the development of the industry mainly in the areas of deep hole drilling and geological survey since we established our company in We got independent from Longyear Company after a long time experience since 1956, holding great ambition with the inherited technology. With the rapid spread of industrialization on a global scale, we have witnessed in many areas rising problems threatening human existence. Among them, "Greenhouse Warming" is becoming a major human concern, whose solution requires ultimate culmination of human wisdom with global human efforts. Our mission is to be part of those efforts with our long accumulated expertise and experiences in the coring technologies ecological surveys. "Where a hole is dug, there is our job. We manufacture and market high quality products: Drilling Machines, Drill Rods and Tools around the world. We have established firm status with Wireline Coring System mainly in the field of Mining Exploration, Soil Investigation, Water Well Drilling and Grouting. EAST/CENTRAL CENTRAL/ AFRICA South Africa Eritrea Ethiopia Mali Niger OCEANIA Australia New Zealand Papua New Guinea SOUTH EAST ASIA Philippines Singapore Vietnam Myanmar ASIA China Hong Kong Mongolia Korea Kyrgyz Uzbekistan SOUTH AMERICA Nicaragua Chile Brazil

3 Our longtime accumulated expertise with advanced technology is developed at our Mito Factory by capable engineers, incorporating customer needs brought from the head office in Tokyo and other branches. 1st Factory 2nd Factory Highlighted is such academic governmental projects as earth observation well and joint R&D (Research and Development), supplying drilling tools with a technology of control drilling in the optional direction. Such technical research and tests are conducted at our technical laboratory. Our contribution is also to be focused on giving high quality support to customers in the process of a selection to an introduction of appropriate items. This is what we seek most to be always helpful to our customers.

4 Company Profile Trade Name Head Office Fukuoka Branch Osaka Branch Mito Factory Establishment History Main Handling Items NLC Company Limited Happy Mishin Bldg. 6th Floor 9-5, 2-chome,Taito,Taito-ku,Tokyo Japan 4-1,2-chome, Nakahata, Ohnojo Shi, Fukuoka Prefecture Japan 23-9,1-chome,Minamimukonoso,Amagasaki Shi,Hyogo Prefecture Japan 645-1,Kogyo Danchi, Hitachi Ohmiya Shi, Ibaraki Prefecture Japan Nippon Longyear Co., Ltd., which was 100% owned by Longyear Company at Minneapolis, U.S.A., was established in Japan in Since then Nippon Longyear had been manufacturing and marketing Drilling equipment, Wireline system, civil engineering equipment under Longyear patents and licence. As of June 1, 1983, Nippon Longyear transferred all the rights of manufacturing and marketing on Longyear products to NLC Co., Ltd. that was authorized by Longyear Co. NLC commenced manufacturing and marketing as the successor of Nippon Longyear effective from June 1, Established in Shibuya-ku, Tokyo with the paid-up Capital of 50,000,000. On June 1, 1994, Geo Engineering Co., Ltd. was established, being independent from Contract division of NLC Co., Ltd with accumulated Wireline system technology of the company, targeting the development/introduction of advanced technology. Geo Engineering is 100% owned by NLC with paid-up Capital of 20,000,000. Mining, civil engineering, civil engineering works equipment, tools and accessories, Drilling Machines, Pumps, Core Tubes, Wire-Line Corebarrels, Drill Rods, Casings, Packers for Grouting, Metal Bits, Tri-cone Bits, Diamond Bits, Air-Hammers, Mast, Wire-Line Hoist, Conical Bits, TC Inserts, TC Knife, TC Rods, Fiberglass Casings & Tubings

5 NLC Company Limited NLC Co., Ltd. Product Information

6 Remarks: Each Drilling Capacity is calculated from hoisting capacity. All Hydraulically Driven Core Drill NL-500T/700B All Hydraulically Driven Core Drill Features 1. Versatility Both High speed and low speed rotary works. PQ Head is available (NL-700B) 2. Function-oriented Central Control system Sliding Head, Mast Slide and Rod Connection Support are equipped with NL-700B 3. High Productivity 4. Mobility 5. Option : Skid Base, Operation Seat, Outrigger NL-500T NL-700B NL-500T Drilling Capacity m HQ-WL-300m/NQ-WL -500m NL-700B PQ-WL-350m/HQ-WL-500m/ NQ-WL -700m Spindle I.D mm 95 95/120(PQ) Spindle RPM rpm , , , 470-1, , , , 470,1,200 Torque N m 5390, 3820, 2310, , 4350, 2633, 1080 Thrust KN Pull KN ,6 Feed Stroke m Hyd. Pump L/min-Mpa 1st: , 2nd: , 3nd: st: ,2nd: Max. Output PS 17(65kw)/2200 rpm 150(112kw)/2300rpm Dimensions mm(lxwxh) 5350 x 2200 x x 2450 x 2050 Weight kg NL-G80 Shallow coring and Geotechnical Drill with Hydraulic Top Head Drive Features 1) Portability 2) Versatility Coring SPT Application 3) Cost Efficiency Drill Rod N size Drilling Capacity m 80 (max.) Spindle rpm rpm 50 ~ 800 {0-78} Torque N m 125 (12.8 kgf m) {1,200 (124) } Thrust Capacity N 29,700 Pull Capacity N 43,600 Hyd. Pump L/min-Mpa 45(at 1200 rpm) / (at 1200 rpm)-14.0mpa Max. Output KW/PS 11/17 Dimensions mm(lxwxh) 2100x1100x2700(virtical) Weight kg 929

7 Mechanical Spindle Type Drill NL-55 Prestigious drill designed to have greater depth capacity with larger diameter. Features 1) Versatility High speed, high torque and 145mm spindle I.D. realizes several types of drilling operations. 2) Efficiency High fuel efficiency 3) Robustness 4) Easy maintenance Drill Rod N size Drilling Capacity m 80 (max.) Spindle rpm rpm 50 ~ 800 {0-78} Torque N m 125 (12.8 kgf m) {1,200 (124) } Thrust Capacity N 29,700 Pull Capacity N 43,600 Hyd. Pump L/min-Mpa 45(at 1200 rpm) / (at 1200 rpm)-14.0mpa Max. Output KW/PS 11/17 Dimensions mm(lxwxh) 2100x1100x2700(virtical) Weight kg 929 L High Speed Diamond Core Drill L-38 is well known model in the world. Features 1) 8 Bit Speed 2) High Speed Maximum: 1,105 rpm 3) Built-in Mast/Wireline Hoist are optional. Drilling Capacity m HQ-WL-375m/NQ-WL -565m Spindle I.D mm 98mm(94mm : when Hyd.Chuck used) Spindle RPM rpm Low:33, 69, 126, 213 High:140, 288, 526, 889 Torque(11KW motor) N m Low:3180, 1520, 830, 490 High:750, 360, 200, 118 Thrust KN 58.4 Pull KN 85.3 Feed Stroke mm 600 Oil Pump L/min-Mpa Max. Output KW/PS 11-4P/14.9 / P/ /1750rpm Dimensions mm(lxwxh) 2250 x 1160 x 1750 Weight kg 1880 Less Power

8 L Megalo Spindle Type of Drill for Larger Diameter Has enjoyed high prestige in Japanese market over long years. Features Mechanical Spindle Type Drill 4) Effective and Safe handlings 5) Large diameter with 145 mm I.D. 6) Versatility Ordinary drilling, Water-well drilling, Anchor drilling can do satisfactory. Drilling Capacity m HQ-WL-375m/NQ-WL -565m Spindle I.D mm 145mm(142mm when Hyd.Chuck used) Spindle RPM rpm Low:28, 58, 106,179 High:118, 241, 442, 746 Torque(18.5KW motor) N m Low:6310, 3040, 1660, 980 High:1500, 730, 400, 230 Thrust KN 58.4 Pull KN 85.3 Feed Stroke mm 600 Oil Pump L/min-Mpa Max. Output KW/PS 11-4P/14.9 / P/ /1750rpm Dimensions mm(lxwxh) 2250 x 1160 x 1900 Weight kg 1910 Less Power NL-26 Small-sized and portable drill equipped with Hydraulic Chuck. Featturres 1) Light weight Some parts are made from aluminum. 2) 6-steps gearing 3) No oil leakage 4) Maximum disassembling weight is under 60 kgs (except power unit) 5) Safety Guards Certified as a rescue tool at coal mine by Chinese government NQ-WL-100~120, BQ-WL-120~150, Drilling Capacity m AQ-WL-150~200m Spindle I.D mm 47mm Spindle RPM rpm Low:72, 110, 144 High:220,292,448 Torque(5.5KW motor) N m Low:730, 480, 360 High:240, 180, 120 Thrust KN Pull KN Feed Stroke mm 515 Oil Pump L/min-Mpa 20L/min Max. Output KW/PS 5.5-4P/8 Dimensions mm(lxwxh) 1360 x 750 x 1405 Weight kg 450 Less Power

9 Q SERIES CORE BARRELS Latch Retracting Case Spear Head Spring Pin Latch Spring Featturres 1) The maximum core diameter and the highest rate of core recovery Q Series can output the 19 to 32% larger core than conventional core barrels, which is matchless highest rate. 2) Increased efficiency in working process Core is produced quickly by retrieving the coreladed inner tube through a drill string. The rods remain in the hole until the bit needs to be replaced. Drillers can spend more time coring and less time pulling and lowering the drill string. 3) Long Bit life Breakdown and reaming of the wall as the descent and ascent of drill rods can be eliminated. Latch Spring Pin Spring Pin Lock Nut Shut Off Valve Thrust Ball Bearing Self Locking Nut Stainless Steel Ball Check Valve Body Latch Support Latch Body Spindle Valve Adjusting Washer Spindle Bearing Compression Spring Inner Tube Cap Hydraulic Grease Fitting

10 Q SERIES WIRELINE RODS Manufactured under strict quality control and are processed with high technology. Here we supply orthodox Q series Wireline Rods. Featturres Q Series Rod 1) Fast stabbing, quick make-up and break-up 2) The heat-threaded rod surface of box thread 3) Seal joint formed by full wedge fit between mating threads 4) Built-in high torque capacity 5) Tapered threads form rigid joints 6) Straightness Tolerance HD Series Rod Epoch-making Wireline Heavy Duty Rod for Greater Depth Featturres 1) 2 steps -Inside Upset. This realizes seamless rod. 2) The 2 steps Inside Upset enables to lighten the rod weight. 3) Transformed Buttress Threads are focused on strength. Featturres A B C D E HQ-HD NQ-HD NT-40.5 Rod 1) Inside-upset structure eliminates couplings. 2) Taper thread provides easy make-up/break-up. 3) High sealing capability

11 DRILL RODS W-SERIES CASING We manufacture any size of Casings currently used in drilling field meeting to the DCDMA Standard. Featturres 1) Reduces wear 2) Easier joint make-up and break-out 3) Extended service life 4) Interchangeable with DCDMA Casing Bushing Casing Metal Shoe

12 Drilling Tools for diamond core drilling based on Wireline System are manufactured at our factory through strict quality control. We have enough experience to meet customer needs, supplying a quality package of the tools: Wireline Hoist, Hoisting Plugs, Holding Tools, Fishing Tools, etc. WATER SWIVEL This is an important tool to equip at the top of drill rod string to send water or drilling mud through the rod string. Several types are available for your selection dependent on drilling situation of pressure and Volume of water or drilling mud to send. Subs are available to adapt to all current rods. HOISTING PLUG Hoisting capacity of S and L type are 2 tons and 5 tons respectively. LD type of 15 tons capacity is recommended for greater depth and large diameter hole drilling.

13 HOLDING TOOLS ROD HOLDER Designed to securely hold the rod and casing of larger OD to use for water-well and civil engineering work drillings. Jaws included in the clamp body can be changed to meet the sizes of rods or casing to handle. ROD & CASING CLAMP with JAWS This is to hold the rod & casing. By changing the jaws to include inside the clamp, driller can handle various sizes of tubings. CASING CLAMP This is to hold the rod & casing string in the hole at the opening of hole on ground surface. ROD/CASING CUTTER Used for cutting rod/casing at any point in a drill hole when the entire string cannot be drawn out. The cutter expands when water pressure is applied.

14 WIRELINE TOOLS WIRELINE HOIST Designed to retrieve and lower wireline core barrel inner tube assembly. This assures reliable handling of inner tube Built-in on the drill type or separate unit type available. Skid mounted type Built-in type Model WLH-S WLH-M WLH-L L-38 Drill NL-55 Drill Drum Dia mm Drum Length mm Hoisting Cap.(5mm wire rope) M Line Speed m/min Power Req d (PS) TIGHT GRIP WRENCH This is to use for making and breaking drill rods, casings and inner and outer tubes of double tube corebarrel. This wrench provides an uniform gripping of tubing without distortion on OD of tubing. Two wrenches are usually employed as one pair. FISHING TOOLS ROD RECOVERING TAPS CASING RECOVERING TAPS BELL TAPS

15 BITS DIAMOND BIT We offer suitable set diamond bits, impregnated bits, reamer shells, casing shoes, casing bits, non-core bits, etc. in all sizes currently used. We also offer custom-designed articles of any sizes. ROCK BITS We offer bits suitable for Exploration, Mining, Construction, Water-well drillings in wide range of sizes to meet your drilling needs. PERFORATOR The perforator effectively perforates the wall of installed steel and PVC well casing when the volume of pumped water has decreased in water-well or hot spring. This tool screws to the end of drill pipe and will puncture rows of approximately 1"x 1/10" slots in steel casing having a thick wall up to.450". The PVC blade cuts approximately.400"x.050" slots in plastic pipe and are easily interchangeable with the steel cutter blade. Size:4 to 16 T..T.. PACKER T.T. Packers use steel-reinforced glands for durability and resistance to cutting and abrasion. Steel-reinforced natural rubber assures positive sealing in rough, irregular boreholes and excellent memory in returning to at-rest diameters.

16 NLC Company Limited Head Office Happy Sewing Bldg. 6th Floor 9-5,2-chome,Taito,Taito-ku,Tokyo Japan Tel: Fax: URL: Fukuoka Branch 4-1,2-chome,Nakahata,Ohnojo Shi,Fukuoka Prefecture Japan Osaka Branch 23-9,1-chome,Minamimukonoso,Amagasaki Shi,Hyogo Prefecture Japan Mito Factory 645-1,Kogyo Danchi,Hitachi Ohmiya Shi,Ibaraki Prefecture Japan