Buchanan Minerals, LLC Buchanan Mine #1 P.O. Drawer L ...

1 Buchanan Minerals, LLC. Buchanan Mine #1. Drawer L. Oakwood, Virginia 24631. Phone: (276) 498-6014. Fax: (276) 498-6018. Email: March 16, 2016. Clayton E. Sparks, District Manager Randy Moore, Chief Mine Safety and Health Administration Virginia Division of Mines PO Box 560 PO Box 900. Norton, VA 24273 Big Stone Gap, VA 24219. RE: Buchanan Mine #1, MSHA ID 44-04856, VA DMME ID 11912AC. ROOF CONTROL PLAN. Dear Messrs. Sparks & Moore: Please find the attached complete Roof Control Plan for Buchanan No. 1 Mine. Should you require additional information or have any questions, please contact me. Sincerely, Danny Atwell General Superintendent Buchanan MINERALS, LLC. Buchanan MINE. ROOF CONTROL PLAN. APRIL 1, 2016.

2 ID 44-04856. VA MI 11912AC. Contents General Information ..1 Roof Support Material (Section 1) ..2 Required Supplemental Standing Roof Support ..2 Optional Supplemental Roof Support ..2 Support Material A. Notching tension rebar bolts ..3 B. Two speed resins ..3 C. Bearing plate ..3 D. Cable bolts ..3 E. Wooden posts ..3 F. Crossbars ..3 G. Plank ..3 H. Crib blocks ..3 I. Treated material ..3 J. Polymer grid ..3 K. Metal standing roof support ..4 L. Installing timbers ..4 M. Cable bolts length ..4 N. Fully grouted cable bolts ..4 General Provisions and Outby Areas (Section 2) ..6 A. Minimum roof control plan ..6 B. Drawings ..6 C. Warning devices ..6 D. Training ..6 E. Working faces ..6 F. Unsupported roof.

3 6 G. Rehabilitation work ..6 H. Slate bar, ..6 I. Working places ..6 J. Inaccessible roof fall clean up ..7 K. Roof fall ..7 L. Breaker timbers ..7 M. Overcasts, boom holes ..7 N. Crossbars or beams ..7 O. Scaling loose material ..8 P. Sound and vibration test ..8 Q. Refuge Alternative locations ..8 i R. Deteriorating outby areas ..8 S. New bolters ..8 Four-Way Crosscut Supplemental Support for Adverse Outby Areas ..9 Three-Way Crosscut Supplemental Support for Adverse Outby Areas ..10 Continuous Miner Provisions (Section 3) ..11 A. Crosscut centers ..11 B. Minimum pillar area ..11 C. Typical Mains Development ..11 D. Typical Longwall Panel Development ..11 E. Combination Belt and Track ..11 F. Longwall Set Up.

4 11 G. Battery Changing Station ..11 H. Emergency cache ..11 I. Gas tests ..11 J. Maximum allowable widths ..11 K. Automated Temporary Roof Support ..12 L. ATRS ..12 M. Rib bolts ..12 N. Spherical washers ..12 O. Torque wrenches ..12 P. Test holes ..12 Q. Roof sloughing ..12 R. Bolt type ..12 S. Safety precautions for fully resin grouted and tension rebar bolt installation ..13 T. Directional Sight Line ..13 U. Standard cut ..13 V. Deep cuts ..14 W. Crosscut Widths ..15 X. Remote control operation of the continuous miner ..15 Y. Hydraulic Pump Motor ..15 Z. Crosscut precautions: ..15 Red Zones ..16 Typical Mains Belt and Track Entry Development ..17 Typical Belt and Track Entry for Development Panels ..18 Mains Track Turns.

5 19 Panel Track Turns ..20 Mains Intersection Bolting Pattern ..21 Panel Intersection Bolting Pattern ..22 Longwall Setup Face ..23 Typical Belt Drive Installation ..25 ii Typical Roof Bolt Installation Sequence with Outside Controls ..26 Typical Roof Bolt Installation Sequence Using Bolter with Inside Controls ..27 Bolt Installation Sequence Using a Bolter with Outside Controls in a 22' Wide Entry ..28 Bolt Installation Sequence Using a Bolter with Inside Controls in a 22' Wide Entry ..29 24' Wide Belt and Track Entry Longwall Development Panels ..30 Bolt Installation Sequence Using a Bolter with Inside Controls in a 24' Wide Entry ..31 Bolt Installation Sequence Using a Bolter with Outside Controls in a 24' Wide Entry.

6 32 Typical Resin Truss ..33 Typical Bleeder Tap Projections ..35 Typical Section Start Up Projections ..36 Longwall General Provisions (Section 4) ..37 A. Longwall District Map ..37 B. Supplemental support ..37 C. Tailgate ground failure, ..37 D. Significant hazards ..37 E. Hazard map ..37 F. False roof ..37 G. Face conveyor ..38 H. Shield Safety Precautions ..38 I. Advancing roof supports ..38 Longwall Recovery Procedures (Section 5) ..39 A. Final pass ..39 B. L bar bracing ..39 C. Rubber tired and/or pan line type drills ..39 D. Z , Gopher or similar type E. Final approach cuts ..39 F. Face conveyor ..39 Longwall District Supplemental Support ..41 Longwall Face Support ..42 Longwall Recovery Support Plan 2 Rows.

7 43 Longwall Recovery Support Plan 1 Row ..44 Longwall Recovery Roof Bolt Installation Sequence Using a Single Head Bolter with ATRS ..45 Longwall Recovery Typical Bolting Using a Z Drill ..46 Longwall Recovery Cribbing Method Supplemental Support ..47 Longwall Recovery Walking Shield Method Supplemental Support ..48 Appendix A Polyurethane Precautions ..49. iii Buchanan Mine Roof Control Plan General Information General Information Company: Buchanan Minerals, LLC. Address: Drawer L. Oakwood, Virginia 24631. Mine: Buchanan Mine #1. MSHA ID 44-04856. VADM MI 11912AC. Mine Location: Mavisdale Buchanan County Virginia Nearest Post Office County State Page Portal 2 miles south of US 460 on State Route 626. Contrary Portal 2 miles north of US 460 on State Route 680.

8 Horn Mt Portal - 2 miles north of US 460 off of State Route 680. Type(s) of Plan: Full Bolting / Longwall / Split and Slab Stratigraphic Section: Maximum Cover Over Coal bed: 2,400 feet Shale/Sandy Shale 0 to 45+ feet Main Roof Sandstone 0 to 50+ feet Sandstone, Shale, Immediate Roof 0 to 10+ feet and Sandy Shale Coal Bed Pocahontas No. 3 60 to 76 inches Sandstone, Shale, Floor 10+ feet and Sandy Shale Company Official Danny Atwell, General Superintendent Responsible for Plan: Longwall shearers and roof supports. Equipment Types in Use: Continuous miners with remote controls. Dual head roof bolters with ATRS. Single head roof bolters with ATRS. Battery scoops, coal haulers, shield haulers. Electric shuttle cars.

9 Diesel Scoops. Belt Feeders. Auxiliary fans. ID 44-04856. MI 11912AC. pg. 1. Buchanan Mine Roof Control Plan Roof Support Material Roof Support Material (Section 1) Required Supplemental Standing Roof Support The following material may be used interchangeably where required by plan: 1) 9 Point Wooden Crib 2) Heintzmann, 100 ton ACS Jacks 3) GMS, JennChem or Heintzmann, Minimum 24 diameter pumpable crib 4) Burrell Mining Products or Jennmar, 18 diameter cans Optional Supplemental Roof Support The following material may be used interchangeably in area requiring supplemental support: 1) Any Plan Required Standing Roof Support, listed above 2) 4 Point Wooden Crib 3) Multiple round or square posts 4) Ratchet Safety Jacks 5) Jennmar Little John Props 6) Jennmar Big John Props 7) Strata Sand Props 8) Strata Prop setters 9) 2 Screw Jacks 10) 2 8' Long Cable Bolts 11) Heintzmann Ball Buster Props 12) Truss Bolts ID 44-04856.

10 MI 11912AC. pg. 2. Buchanan Mine Roof Control Plan Roof Support Material Support Material Specifications A. Notching tension rebar bolts will not be allowed to facilitate bending. B. Two speed resins may be used to install fully grouted tension rebar bolts. C. Bearing plate size shall be at least 6 by 6 , including donut embossed plates. D. Cable bolts shall be used only as supplemental support and installed per the manufacturer's recommended installation procedures. A copy of the procedures shall be maintained at the mine and reviewed with the employees performing the installation. E. Wooden posts should be solid straight grain wood with the ends sawed square and free from defects which would affect their strength with a minimum diameter or cross sectional area shown below: Diameter of Round Area of Split Posts Side Dimension of Post Length (in.)